The disadvantage of pure Vitamin C is that it is super unstable, and hard to formulate with. This formula uses a low pH and extra antioxidants to help to stabilize Vitamin C, but even like this, C-Glow comes only with a couple of months shelf-life.
The official shelf life of C-Glow is 6 months from production, unopened and stored in the fridge. To ensure maximum freshness, we manufacture small batches of C-Glow every week, and we store this product in the fridge in all of our warehouses. On average, by the time a C-Glow reaches our customers it is about 2-3 weeks “old”. We recommend you to store it in the fridge, too, where it keeps fresh at least for 3 months (if unopened, it keeps for a couple of months more), while it keeps about 6 weeks at room temperature. If going to the fridge every day for your C-Glow does not sound comfortable, we recommend to use this 10 ml mini bottle. You can easily decant 5-10 days worth of C-Glow into it, and store the mini bottle in the bathroom, while having the C-Glow bottle in the fridge. Click here for the C-Glow mini bottle.
Who is it for?
how to use it?
Apply a few drops to the face after cleansing, before using other serums and/or creams. Ideal to use in the AM, but can be applied in the PM as well. As the C-Glow formula is water-like, we recommend that you put a drop directly onto your face and quickly pat it on with your other hand.
Shelf life: 6 months from production (unopened), 3 months PAO (period after opening).
Ingredients & Research
Vitamin C (ascorbic acid – 15%) – A clinically proven active that gives the skin environmental protection (antioxidant), boosts collagen production and fades hyperpigmentation. Also gives an instant glow to the skin.
Ferulic acid + Vitamin E – Antioxidants that help to stabilize Vitamin C and increase its antioxidant power. The formula contains a high amount of Ferulic Acid, and a smaller amount of vitamin E.
Dimethyl Isosorbide – A new-generation solvent that aids the proper penetration of Vitamin C + solubilizes the high amount of Ferulic Acid into the formula.
full inci list:
Water, (L-)Ascorbic Acid, Dimethyl Isosorbide, Butylene Glycol, Peg/Ppg/Polybutylene Glycol-8/5/3 Glycerin, Ferulic Acid, Tocopherol, Phenoxyethanol, Ethylhexylglycerin, Sodium Hydroxide
Journal of Cosmetic Dermatology, Volume 11 (4) – Dec 1, 2012, Stability, transdermal penetration, and cutaneous effects of ascorbic acid and its derivatives
The Journal of investigative dermatology., 2005 Oct;125(4):826-32., Ferulic acid stabilizes a solution of vitamins C and E and doubles its photoprotection of skin.
Exp Dermatol. 2003 Jun;12(3):237-44.,Topical ascorbic acid on photoaged skin.
Given the quick lifespan of Vitamin C I was deeply unhappy throwing away my very expensive skinceuticals vitamin C. Then I discovered a review of G&G. I'm on my third bottle of G&G & I can safely say this is the best one I've ever used. It is the first and most fundamental step of my day and it absorbs so well. This is my favourite product in my skin routine. Thank you G&G please never change the formula!
I am really impressed by C-Glow and I have used expensive vitamin C serums in the past. I will not go back. C-Glow is helping my skin a lot, I can already see the difference. More brightness and a beautiful glow. And zero oxidation, which is new for me (serums from other brands always oxidized quickly, no matter the price). I keep the bottle in the fridge, as recommended by Geek & Gorgeous, and I also have the mini bottle, where I pour small amounts of the serum. This is a great solution, because the serum does not have time to oxidize at all - it is always freshly applied on skin. I am so impressed with this brand and so happy to support Geek & Gorgeous, an authentic brand with values that I love.
This is the best Vitamin C serum I have tried so far.
I have very sensitive skin, but can use it daily without any irritations or burning. It works wonderful on my hyperpigmentations! I store it in the fridge and use the mini bottle to have a small portion ready in the bathroom - the serum lasts longer than expected without oxidizing!
This is the best vitamin C I've ever used. All the others broke me out. This product gives my skin a beautiful glow which im loving. Im definitely repurchasing it. Not to mention the fact that the product is highly cost effective!!!
Hands down the easiest to layer, effective and most convenient vitamin c serum I have used