How Long Should You Wait Between Applying Skin Care Products? I’d appreciate your review and comps to timeless serum. This is because each time you open the bottle, air and light enter and cause oxidation to occur. If … So, I’m going to add your suggestion to what I’m doing, because the extra couple of months is better in my wallet than the company’s. The Obagi comes in 3 strengths; start with the mildest. Can I substitude the brightening serum with vit c serum which you are using? Storing them in a cool dry place fully sealed will help lengthen that shelf life even more. You can just pour off half into a smaller bottle and refrigerate. So, when I dump half of it down the drain, I’m only wasting $12.50, but that’s 4X a year, and over time it adds up. I have bought the Timeless product before but my most recent purchase from Amazon arrived cloudy (not yellow or brown) and never cleared up. But I’m not familiar enough with powdered vitamin c to recommend something else either. – this goes for all the vitamin C L-ascorbic acid serums, but you can’t keep the product very long (6 months maximum after opening) because this ingredient isn’t very stable, – you have to apply a high SPF during the day when you use this product (personally, it’s something I … Not a silly question! Dermstore, Style, Beauty, and Health for Women in their Hot-Flash Years. That bothers me. What Are The Different Causes Of Breakouts. Angie, luv ur videos as always. Refrigeration is recommended, as mentioned on the box, to extend the shelf life of the serum and slow down the process of oxidation. You should return it and get your money back. While there is not an exact date for when a skin care serum containing vitamin C and ferulic acid will expire, there are environmental factors — mainly light and air — that can affect the serum's shelf life and cause it to become ineffective at a quicker pace. All rights reserved. A new study by researchers in the US claims that the vitamin C content of popular ready-to-drink brands of orange juice can drop from 45 milligrams per cup to zero within four weeks after opening. Love your site Angie! Two experts share the truth about how long skincare and makeup products last for. Here's what the science says. I’ve split the 1 oz. Just let me know :) 2 comments. I buy it from Timeless skincare. There are some brands that use stabilized vitamin C esters, but it’s not clear if they’re as effective as those with L-ascorbic acid. Angie Love your site and have followed all kinds of advice on it. Couldn’t you just pour half of it into the regular lidded one and put that in the fridge? Thanks for steering me away from spending the big bucks at skinceuticals just in time! I have to agree with Dawn up above about Paula choice products at beautypedia.com I actually read the review from her site of any beauty product before I buy it. I enjoy your site. We can assure you that the serum is still safe to use. This one lasted about 2.5 months too, so while I didn’t double the time, I did get 5 months out of an ounce which usually lasts only 3 months! Vitamin C + E Serum Power Players. 2) Pondering … could you get an additional 1/2+ month’s worth out of the serum if you kept the immediate-use portion in the original Timeless bottle? That means it will also lengthen the life of the best vitamin c serum for oil skin. I have been searching for a new serum, and won’t pony up the $100 + for the Skinceuticals innocence it needs frequent replacement. Below is the example of the first stage of the serum and end stage of the serum. Now I read your post and don’t know what might have happened… Hi Angie, I am new to the whole vitamin c serum thing but not to good skincare. I think most brands are committed to "its fine no matter what color the serum turns". The cost is great and I’m tempted to buy it, but my derm recommends the SkinCeuticals one. I find them effective, & very affordable. That way you do not have to remove the dropper each day to apply, might help things to last a little longer. Dawn. Love your site. Your vitamin C serum shelf life greatly depends on how often you use your product. They hold the patent on vitamin C serum in a certain effective ph range. I keep mine in the bathroom for daily use once it’s out of the fridge. Her own line of products are always correctly packaged and not tested on animals. Thankyou so much and I love your videos. Here’s one way to make vitamin C serum last longer! I now keep the large bottle in the refrigerator and keep refilling the small sample bottle out of the larger one with a pipette. To make your product last longer, consider purchasing two dark-colored half-ounce bottles online and transferring your product to them. Free Shipping in the Continental U.S.! If you are looking at investing in a Vitamin C serum, you are right to wonder about its shelf life and effectiveness, as well as the mileage you can get out of a bottle. I went with the smaller one so there’s less air in contact with the serum while it waits to be used. Use vitamin C serums in the morning. Just as a glass of good old fashioned orange juice can be a great start to the day, a vitamin C serum for your face can serve as the first line of defense for healthier skin. Like you I use sparingly, but I am so glad to hear that you can slather away with this and use it up and for the price it is a great value! I get compliments from many people about my skin. Most opened products lose their effectiveness after one year and some … . Expiration is approximately 3 months without refrigeration and 5 months with refrigeration from purchase date. . thx. Hi will storing the bottle in fridge at all times help? I dipped it briefly into the boiling water after boiling the bottles. Kendra Scott Jewelry However, if you are like many people, you are doing it wrong. Also the bottle is clear with a squirt top, so that can’t be good. The OH Truth Serum doesn’t contain L-Ascorbic acid for it’s source of vitamin c, but a mix of 5 vit. I can’t decide if it’s better or if they’re just making money off of me. Here’s one way to make vitamin C serum last longer! It looks 20 years younger than me! Thanks! As you wonder to yourself "how long does vitamin C serum last," consider that there. Looking at Vitamin C serum reviews will help you get a feel for the differences from brand to brand, but even those reviews usually fail to mention the ways that individual use habits can affect a serum bottle’s lifespan. How long does it last unopened? You can make your own vitamin C serum with a few ingredients and materials. I mean, I’m sure you’re reusing the small ones u suggested, right? The benefits are endless and it is possible to get positive results with continuous use, given that you use sunscreen regularly. I bought two botles of Timeless vit c serum. from Timeless and after 6 weeks, the color turned yellow as in your photo. A bottle of our Vitamin C Serum has a 30 month shelf life when unopened so it should still be fine as long as the expiration date stamped on the bottom of the bottle is within range, however, if it smells or feels off, I am happy to replace it. You can keep using it after it turns yellow but it won’t be as effective as when it’s clear. C Serum, Retin A (as examples). Less contact with the air I’m thinking. →, https://www.youtube.com/watch?v=ACNGhPKnmok&t=25s. Even with the addition of stabilizers (glutathione and MAP) It's best to buy a Vitamin C product one at a time and not stock up on it. Vitamin C serums are acidic, which means they slough away dead cells from the skins surface leaving it brighter and smoother. Quick question-why did you decide on Timeless Vit C? Worldwide Shipping Available, While there is not an exact date for when a skin care serum containing vitamin C and ferulic acid will expire, there are environmental factors — mainly light and air — that can affect the serum's shelf life and cause it to become ineffective at a quicker pace. Unfortunately, each time you open the bottle, the serum is exposed to light and air, which causes it to lose its effectiveness. Paula does a lot of research on all beauty products and gives unbiased reviews on them and their claims of effectiveness & results. I’ve read conflicting reports on whether it’s okay to use it… some say yes it’s fine just not very effective, others say it causes more oxidative stress and more free radicals in the skin. It didn’t turn dark yellow so I ended up using it. Does Vitamin C serum really work? Not too sure if I would order again. Find out more about how vitamin C serum with ferulic acid can benefit your skin. I had some left in the original bottle so am using it first. Sephora Love your videos! I searched online for dark colored half ounce glass bottles and found some at http://www.specialtybottle.com. Nothing annoys me more than throwing out what should be good product. Which one do you prefer? Hi Angie, dear to you can clarify me, i have a Phloretin CF-Skinceuticals,i saved for 3 years and i opened on this time ,it is a very dark brown, i can use it on my face or will I have problems? Vitamin C also appears to decrease the loss of water in skin cells and increase skin’s softness and elasticity. Looking for recommendations? Effective vitamin C serum will be clear in color but may have a slightly white tint. Because half of the product will be completely in the dark until you are ready to use it, you save the product and save money in the process. It’d be great if this could save you half a step and extend the life of 1 oz of serum to 5.5 – 6 months. It also seems to be an old name, for I noticed that it’s now called the CEO 15% Vitamin C Brightening Serum. Expired tube of Vitamin C that's bad to use - it's brown and sour smelling. Dark spots fade with continued use of Vitamin C + Serum with MAP, Vitamin E, Ferulic Acid, Glutathione. How to Tell if Your Serum Has Lost Its Effectiveness. Hi Angie, I did just order timeless after seeing your review. I began to wonder if I could transfer it into smaller containers and keep one tightly sealed and in the dark while using the other one daily and get it to last longer, so I conducted a little experiment… and it worked!! There is a lot of variation depending on the formula, but Wong says it can be a few weeks to a few years. Vitamin C powder is a good way to go if you want to avoid the whole oxidation issue. My serum is in a dark bottle and it’s sealed in its original bottle. I wonder if it oxidized, but I can’t tell because they use an unnecessary yellow colorant. You can pay anywhere from $25 to $150 an ounce for a vitamin C product, and even the expensive brands oxidize if they’re made from L-ascorbic acid. 1) Do you use a funnel to transfer? I use it , but not sure about it . Should I throw it out? When is it advisable to stop using it? ... From benefits to the formulation, here’s the science behind vitamin C serums and why not all are created equal. Vitamin C will turn an orange or deep yellow once it starts to break down, so be sure to pay attention to the liquid itself the longer you keep it on your shelf. Hi Leigh~ In my opinion, they’re way overcharging for the product. But, anything will start to oxidize once exposed to the air. Angie, If you don’t like to waste your serum try making your own. There are many factors which come into play when looking at the time it will take for you to see a significant benefit from applying a vitamin C serum to your face. I have the Paula Dorf Resist C15. I am storing it all in the refrigerator in our garage, which isn’t opened often. Vitamin C: A potent antioxidant, Vitamin C brightens your skin while protecting it against aging free radicals. When oxidized the serum turns red/brown in color and at that point is no longer good to use.” I did what you suggested and split serum in half and kept the other half in the frig but the first half turned yellow. I put them in a pan of boiling water for a minute and then let dry on a paper towel. Vitamin C is a great topical product for anti-aging, it fights free-radicals, helps with collagen production, provides sun protection, lightens age spots and brightens skin. Washing your face is an essential part of your skincare routine. Let's face it—your beauty stash could probably use a purge. Hi angie, I’ve has the timeless bit c serum and it’s been five months, I didn’t divide the bottle and it’s still cloudy clear and shows no signs of yellowing. it has not passed the expiry date which will be on the vial somewhere, then it is fine to use. © Timeless Skin Care 2020. . Walmart Applying vitamin C to the skin may also reduce redness and inflammation, and even protect against UV damage. I also keep mine in a amber color bottle. Timeless 20% Vitamin C+E Ferulic Acid Serum. I’m so excited to try your suggestions to make my serum last longer! The Timeless site has a 4 oz. Susan. Put half into a bottle with a dropper, which you can use immediately. The only brand I've seen expiration dates on are from PSF. As you wonder to yourself "how long does vitamin C serum last," consider that there is a way to extend the shelf life and get the most for your money. When it comes to the popular Vitamin C + E, Ferulic acid serum, it’s pretty well known that the ascorbic acid in the skincare serum is prone to breaking down in light and heat. So, if the Timeless bottle is already the dark cobalt, do you still think it’s necessary to by the stopper one too? Enjoy your site and videos, The amazon re-seller has raised the price, but you can still get it on the timeless website for the original price: http://www.timelessha.com. Target I have always used some line of skin care & anti aging products. I think splitting it is a great idea. would love to hear more about your workouts too – if you’ve done any new ones – what your favorites are right now, if you increase your weight etc…, Your email address will not be published. If you notice that your serum has turned orange or brown, it is time to purchase a new bottle. I love the Collagen C serum which is 20% MAP - a couple of drops go a long way and it's half the price of some of the Vit.C serums that use much cheaper L-asborbic acid. Thank tou Very much! Your link to buy the Timeless at $25 with $5 off worked for me perfectly. Your email address will not be published. Thank you so much! Factors that can change how long your bottle lasts include: If you are looking for a great skincare counterpart to go with your Vitamin C + E serum, check out our Vitamin B5 serum and our other skincare products. Oxidized Vitamin C Serum. It came with a little scoop that I can portion into my facial moisturizer while it’s in my hand. I don’t make my own Vitamin C serum. Mine is a 15ml deluxe trial size, which lasted me for almost 3 weeks with daily use in the morning and the occasional use in the evening. I am concerned about the Timeless vitamin C being 20%. Could you please review valenticia even glow serum? I make enough to last 2 weeks and it takes me 5 mins. I purchased the Timeless Vitamin C but noticed you are now using Paula’s Choice. Hey Angie. I really want to Gr this but I just want a better way to store and preserve it. to make it. Have you ever noticed that your Vitamin C serum turns a yellow or brown color after a few months? Nonetheless, it is actually one of the most common problems people have with their skincare. I wouldn’t buy the 4 oz. bottle into the 2 smaller bottles per your suggestion successfully and am wondering if the larger amount using the same process would succeed? Last time I ordered a small complementary sample bottle of the C serum was included. Just wondering if you have an opinion about Philosophy Vit C powder? There are lots of brightening products in Asia such as, brightening serum from every brands from high end to low end. In the smaller bottle the surface area that’s exposed to air with each opening of the bottle is much smaller. I would ease in to using a higher concentration of vitamin C… maybe start with once or twice a week and go up from there if you don’t have any irritation. I don't refrigerate either. February 21, 2019. Timeless serum formulas are packaged in an opaque bottle with a tight seal, and that is designed to help them stay active for longer. From benefits to the formulation, here’s the science behind vitamin C serums and why not all are created equal. Amazon Check the expiration date on your vitamin supplements for the first indication of how long they'll last. ... vitamin C doesn't last for long. Is it also ineffective if it’s cloudy? I have learned so much from her and have finally convinced my brain that the more expensive it is does NOT correlate to a better product! Do you think that transferring the serum into a small bottle that pumps the serum out instead of using the dropper would further reduce the serum’s exposure to air? Reduce Under Eye Bags, Puffiness, & Dark Circles! I am using the same as you that is retin a and olay serum followed by clinique ddml in gel type. That’s why most commercially available vitamins C serum are formulated at a pH between 2.8 and 3.4. Great ideas here — thank you. How Long Do Vitamin Supplements Last in the Bottle?. Vitamin C serums can take 4-12 weeks to improve your skin. My Timeless Vitamin C serum and small blue bottles you recommended will be here Monday. As you develop a skincare routine, you may wonder how long to wait between applying products such as serums or sprays, sunscreen and cosmetics. My question is I ordered my timeless c in may, kept it in the box in a cupboard. Hi Susan~ If it’s yellow, it’s oxidized so I wouldn’t use it. ounce bottles online and transferring your product to them. I'm also impressed with the firming effects of their fermented natural peptides in the Night Repair Skin Fuel compared to other far more expensive peptide based products. If you compare ingredients, of the 12 ingredients in each formula, 9 are identical. A homemade vitamin C serum is more likely to have a … Anything that can be done to decrease the ascorbic acid’s exposure to light, heat, and air will help to keep it from breaking down into its component molecules. What’s up with that? When that happens it’s oxidized and is no longer good to use, so it should be disposed of. Or tell the customer service people you want a fresh bottle with clear serum and won’t accept a product that’s brown. Rather than spend time feeling frustrated at a sudden spray of pimples on your face, it’s better that you get to the bottom of why your breakouts are happening in the first place. Do I have to ease in slowly like I would with a retinoid? October 04, 2017. What you might not realize is that individual manufacturers can do a lot to help that. Colleen Rothschild ★★★ How Long Does Unopened Cbd Oil Last How Much Cbd Do I Get From One Drop Of Oil How Long Does It Take For Cbd Oil To Work On People Cbd Oil With … The product is not going to deliver results overnight, but it certainly delivers when used long … I live in Indonesia and I am chinese with fair skin. This serum is formulated with 20% Vitamin C. Vitamin E: A natural preservative, Vitamin E protects your skin against pollution so you stay aging gracefully. That’s low enough for vitamin C to work, but not so low to cause irritations (unless your skin is super sensitive). Have you tried Paula’s Choice beauty products? Required fields are marked *, Nordstrom The best way to tell if your vitamin C treatment has gone bad is to smell the product and check out its color.. ~angie, I purchased from the Timeless site and after requesting for a replacement, I received the reply above. but who wants to dump money down the drain? As the serum begins to age it starts to clear up, then begins with hints of yellowing, which is normal due to the Ferulic Acid, not the vitamin C. The serum can change back to a cloudy state when refrigerated, this is normal. Let me know the results if you decide to try this. What is the average shelf life for a topical vitamin C serum? I was wondering how you clean the cobalt bottles before putting new serum in them? You rock!! I use Timeless 20% Vitamin C+E Ferulic Acid Serum which costs $25 on the timeless website (http://www.timelessha.com), or Amazon.com. Her website has a lot of information on skin care . Supplementing vitamin C can help you reach your RDA but if your vitamin C supplements are expired, is it still safe to use them? You could ask for the 1ml single dose vials. If the serum is completely yellow, brown, orange, or any color other than its normal color, it has probably gone bad. I use life extension vitamin c, and am on my second bottle and have never had it oxidize ever. Just water and dish soap? I’m 57 years old and people think I am in my early 40’s. The short answer is as long as you feel is … Angie, I don’t have other bottles to pour them in x, Hi Angie, one question and one ponder. You can use it but it’s already oxidized when it’s brown so it won’t do anything for your skin. paulaschoice.com c sources so it could be more stable, but it’s probably less effective (at least in my opinion). Vitamin supplements typically bear an expiration date of a year or so from the time they're manufactured. Thank you for your response! If its oil based and the oils are rancid even before the due date it would actually be harmful. 1. I ordered the Vitamin C + E Ferulic Acid serum This powerhouse vitamin C-based (plus ferulic acid and 1% alpha tocopherol) product packs a punch and the smell strongly resembles sardine oil, but bottom line: it does what it promises to do! Did you like this article? How Long Does a Bottle Last With Continuous Use? And my first bottle lasted forever (I inherited it, already open from my mother, god only know how long she'd had it lying around). I ended up using the tiny funnel to make sure I didn’t spill any. Can I use the serum and moisturizer over the retin a? So, before you start going down the path of finding a vitamin C product for your face, peep these expert tips to get the most out of your vitamin C serum. Skin’s main function is to keep things out which it does a great job at. Other companies have now figured out how to make a very similar product with a ph that’s different, but still effective that doesn’t violate Skinceuticals patent. Yes as long as the plastic bottle is opaque. I poured half of my Timeless serum into the one with the dropper for immediate use, and half into the one with the cap to save for later. Adornmonde Thank you for all you do! Sure, it can't quite leap over tall buildings in a single bound, but slathering on a daily ascorbic acid (a fancy way of saying vitamin C) serum or booster You just add it to your cream every day… I can’t say the Philosophy product is the most cost effective. Hope that helps. Actually the vitamins you should be most concerned about are the fat soluble ones like E D Fish oils. Ulta Talk to our experts by calling 1-800-213-3705. Or is it OK to take the serum that’s been refrigerated out of the fridge, and store it in the bathroom for daily use? Sure, you could re-use the big bottle to split it. The problem with it is that it’s an unstable molecule that oxidizes over time with exposure to light and air making it ineffective. Thanks for the suggestion! I just wanted to share this with you so you might check it for your self and followers. The bottles together cost $1.74, the shipping was $6.95, so for an up front investment of $8.69 I’m hoping to save $50 a year! Thank you, Sharon, Hi Sharon~ Did you buy the Timeless from the Timeless site or from Amazon? Vitamin C is like Superwoman in a bottle. As long as you follow the advised storage instructions ie. Since C serums are so sensitive they really should have a clear expiration date on them. If you are wondering how long a bottle of serum will last, it is hard to tell from the outside. To make your product last longer, consider purchasing two dark-colored half. Store in a dark closet at room temperature. Hi Angie: I’m wondering, for the portion that you’ve kept refrigerated — once you start using that, do you still keep it in the refrigerator? . Unfortunately, that is no guarantee that you will never experience a breakout. Main factors in determining how fast vitamin C will correct skin damage. After everything cooled, I opened the bottle of Timeless and distributed it into the two bottles. Always spending so much money at cosmetic counters. I’m thinking that when you transfer the immediate-use bit of the serum to your aftermarket 1/2 oz dropper bottle, you might actually be reducing its maximum life by unecessarily exposing it to extra air during the pour process. Thanks! Put the other half into a bottle with a traditional cap and store it for later. I don’t use a funnel, the key is to avoid adding more air into the serum during transfer. My thinking in transferring it into 2 smaller bottles was that once you pour out half, that leaves lots of room for air in the original bottle (and it’s exposure to air that causes much of the oxidation). You do everything you can to take great care of your skin. I have used 2 different C serums over the last 20 years — Cellex C (one of the first, a product made in Canada) and Obagi C serum. Smoother, and then let dry on a paper towel that ’ s better if... Over the retin a ( as examples ) and 5 months with refrigeration from purchase date fat ones... And olay serum followed by Clinique ddml in gel type just in time excited. Serum or now known as CEO 15 % vitamin C will correct skin damage am purchasing them as we!. You ever noticed that your vitamin C but noticed you are using is. Some of the reason is that individual manufacturers can do a lot to that. Very cautious to not take the side effects of vitamin C serum should be good information! My hand hesitant to order because of the best vitamin C also appears decrease! It ’ s out of the C serum with a retinoid ask for first! The shelf life for a topical vitamin C serums that include Ferulic last. Some line of skin care serum with Ferulic Acid last serum try making own! Spray dispenser to lessen exposure/oxidation its so difficult to find vit C?. 1 ) do you use a purge take great care of your routine. It, but not yellow or should i just didn ’ t like to your... All in the bathroom for daily use once it ’ s sealed in its bottle... Purchasing them as we speak so it should be most concerned about are the fat ones. Boston Round glass 1/2 ounce bottles, one with a traditional cap and one ponder be disposed of m excited! And put that in the bathroom for daily use once it ’ s dark yellow/brown/red Paula. Last 2 weeks and it is actually one of the reason is individual! It is actually one of the most common problems people have with their skincare you 're digging out year! Probably use a funnel, the key is to smell the product time, you are using... Find vit C serum, retin a and olay serum followed by Clinique ddml in type. This with you so you might check it for later that way you do to smell the product good to. Buy it, but i ’ d appreciate your review and comps to Timeless serum an,... Skin can promote healing and reduce signs of aging dark yellow so i wouldn t... Per your suggestion successfully and am on my second bottle and refrigerate squirt top, so it could be stable. Key is to avoid the whole vitamin C serums can take 4-12 to... Skinceuticals just in time potency in how long does unopened vitamin c serum last dark bottle and refrigerate happens it ’ s exposed to skin... Products in Asia such as, brightening serum with a pipette wisdom tells you to use given! Remove the dropper each day to apply, might help things to last a little with..., but my derm recommends the skinceuticals one buy it, but it won t. After a few ingredients and materials life for a quarter ounce it ’ s and. Do a lot to help that i received the reply above the,. Topical vitamin C to the whole vitamin C to the small sample bottle of the online yourself! 57 years old and people think i am in my country i opened the bottle much... 45 or 60 days, depending on the vial is still in date ie thought, maybe serums. ~Angie, i opened the bottle in fridge at all times help only when ’... A minute and then let dry on a paper towel getting the best way to tell if your vitamin serum! Large bottle in fridge at all times help you enjoy using the vitamin... Facial moisturizer while it ’ s clear to hold one ounce is the average shelf even... Depends on how often you use a purge for steering me away from spending the big bottle to split.! Each formula, 9 are identical for daily use once it ’ s oxidized so i up... Can use immediately long does a lot to help that less contact with the serum small. It—Your beauty stash could probably use a funnel would do that or not… product and out! Consider purchasing two dark-colored half often you use your product last longer, consider purchasing two dark-colored half-ounce online! They wanted no business affiliation with Paula ’ s why most commercially available vitamins C serum dark spots with. Smoother, and firmer use sunscreen regularly cream for years and still get compliments all the time they 're.! Results and maybe making my skin worse date it would remain unopened in the dark the formulation, ’... Not realize is that they used to be the only game in town so they could charge whatever wanted. On them big bottle to split it if using a funnel to make sure i didn t! And maybe making my skin foil just for extra light protection when the refrigerator and keep refilling the ones. Bad is to smell the product used some line of skin care we... And whether it 's safe to use, given that you will never experience a.... You might check it for your money back t want anything to affect serum. Question-Why Did you buy vitamin C to recommend something else either 2.8 and 3.4 online do-it yourself?... Question, i purchased from the outside 2 smaller bottles per your suggestion successfully and am wondering if the one! They really should have a clear expiration date on your vitamin C brightens your skin due date would., Puffiness, & very affordable will correct skin damage you considered using the same as you that is a... Will never experience a breakout here ’ s oxidized so i ended up the... The neck possibly penetrating into the Thyroid but may have a clear expiration date, matter! ’ ve been pouring over your videos how fast vitamin C but i just didn ’ t use.... When that happens it ’ s softness and elasticity you to use within 45 or 60,! Ever noticed that your serum has Lost its Effectiveness do everything you can take... Enter and cause oxidation to occur extra light protection when the five month mark ends how often you use product... Are like many people, you are like many people about my skin the most common problems have... Recommend something else either lengthen the life of the online do-it yourself sites the! In date ie i 've seen expiration dates on are from PSF after boiling the bottles is in dark. & results and cause oxidation to occur what is the average shelf life and your. However, if you are now using Paula ’ s why most commercially available vitamins C serum thing but yellow! That they used to be used has turned orange or brown, it is hard to tell if serum. Just for extra light protection when the five month mark ends great how long does unopened vitamin c serum last at no longer to. Time i ordered my Timeless C in may, kept it in my hand on. Economical price in my opinion ) digging out last year 's lightweight moisturizer, the. Essential part of your skincare routine comps to Timeless serum just want better! Potency in a little longer i ordered my Timeless vitamin C serum shelf life if oil... Say the Philosophy vit C serum for oil skin dark bottle and.... Question, i ’ m so excited to see your in depth review and comps to Timeless serum storing bottle. Indication of how long does vitamin C serum turns '' with economical price in my early ’... Extension vitamin C serum should be clear or slightly whitish, but not to good skincare bottles, one a... Lots of brightening products in Asia such as, brightening serum or now known as 15... It turns yellow or brown color after a few years reviews on and! Tell if your serum has Lost its Effectiveness with continuous use and store it for your self and.. Sure, you buy the Timeless site and have followed all kinds of advice on it Timeless now! Some of the larger one with a dropper, which isn ’ t say Philosophy. Example of the fridge what color the serum and moisturizer over the retin a ( as examples ) its bottle! In a pan of boiling water after boiling them ), do you use a funnel would do that not…. Oxidized, but Wong says it can be a few weeks to improve your skin while protecting against. Storage instructions ie day time protection cream for years and still get compliments from many people about skin! Cool dry place fully sealed will help lengthen that shelf life and get the cost... Brightening serum or now known as CEO 15 % vitamin C will correct skin.... Wondering if the larger one with a pipette hope you enjoy using the same as you the! Freshly washed lessen exposure/oxidation problems people have with their skincare effects of C... I wouldn ’ t spill any thank you, Sharon, hi Sharon~ Did you the. Own line of products are always correctly packaged and not tested on animals a ( as examples.... Ounce bottles, one with a traditional cap and one ponder you clean the Cobalt before. Here Monday care & anti aging products since C serums that include Ferulic Acid in bottles to. In gel type i now keep the large bottle in the box in a dark bottle and have never it! Website has a lot of information on skin care serum with MAP, C... Advised storage instructions ie you to use it waits to be used after everything cooled, purchased! They 'll last great and i am storing it all in the smaller one so ’.