Pure Vitamin C (or L-Ascorbic Acid) is a clinically tested 3-in-1 superstar ingredient that provides perfect protection against environmental damage (antioxidant), increases collagen production, and reduces hyperpigmentation spots. This water-like formula contains 15% Vitamin C and additional antioxidants that provide a healthy glow and luminosity to the skin, while evening out skin tone and firming it. The only downside to pure Vitamin C is that its very unstable and difficult to formulate. This formula uses a low pH and additional antioxidants to help stabilize the Vitamin C, but even then, C-Glow only has a 4-month shelf life. To ensure maximum product freshness, C-Glow is manufactured in small batches once a week (on average, by the time a C-Glow reaches our customers, it is approximately 2-3 weeks past its manufacturing date, and we store C-Glow in coolers in our warehouses). CONSERVATION We recommendstoring it inthe refrigerator, where it stays fresh for at least 3 months (unopened, it will keep for a couple more months), while opened, it will keep for about 6 weeks at room temperature. WHO IS THIS PRODUCT RECOMMENDED FOR? For all those people looking for a pure Vitamin C formula with a light texture + an extra boost of antioxidants. However, if you have very sensitive skin, prone to redness, we do not recommend C-Glow due to its low pH and high pure ascorbic acid content. Not tested on animals / vegan / fragrance and essential oil free / gluten free / Malassezia safe / pregnancy safe KEY INGREDIENTSVitamin C (15% L-Ascorbic Acid): A clinically proven active ingredient that provides environmental protection (antioxidant) to the skin, increases collagen production, and fades hyperpigmentation. It also provides an instant glow to the skin.Ferulic Acid + Vitamin E: Antioxidants that help stabilize Vitamin C and increase its antioxidant power. The formula contains a high amount of Ferulic Acid and a lower amount of Vitamin E.Dimethyl Isosorbide: It is a next-generation solvent that helps the proper penetration of Vitamin C, in addition to solubilizing the large percentage of Ferulic Acid in the formula. INGREDIENTS Water, (L-)Ascorbic Acid, Dimethyl Isosorbide, Butylene Glycol, Peg/Ppg/Polybutylene Glycol-8/5/3 Glycerin, Ferulic Acid, Tocopherol, Phenoxyethanol, Ethylhexylglycerin, Sodium Hydroxide INSTRUCTIONS FOR USE Apply a few drops to your face after cleansing, before using other serums and/or creams. Ideally, use it in the morning (when were most exposed to environmental damage), but it can also be used at night. Since C-Glows formula is similar to water, we recommend applying a drop directly to your face and quickly patting it in with your other hand.