A super-light, water-like 15% Vitamin C + extra antioxidants (Ferulic Acid & a smaller amount of Vitamin E) formula to give the skin environmental protection, boost collagen & even the skin tone. Skin type: all skin types - please do a patch test if you have sensitive skinSkin concern: dark spots, aging, dull & uneven skin Pure Vitamin C (or Ascorbic Acid) is a 3-in-1, clinically proven superstar that gives the skin environmental protection (antioxidant), boosts the skin's own collagen production and fades hyperpigmentation. This water-light formula contains 15% Vitamin C & extra antioxidants to give a healthy glow, even and firm the skin. 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 with a relatively short, 8 months shelf-life. key ingredients: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.  Use: 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 PM as well. As the C-Glow formula has a water-like texture, it is recommended that you put a drop directly onto your face and quickly pat it on with your other hand. Geek & Gorgeous C-Glow Serum 30 ml