What it is: A fast-acting formula with 15 percent vitamin C that is clinically shown to visibly brighten skin in as few as 15 minutes and visibly improve firmness, discoloration, and dullness.Skin Type: Normal, Dry, Combination, and Oily Skincare Concerns: Dark Spots, Fine Lines and Wrinkles, and Loss of Firmness and ElasticityFormulation: LiquidHighlighted Ingredients:- 15 Percent Vitamin C: Visibly evens tone and firms and defends against aging free-radical damage.- Ferulic Acid: Fights discoloration and stabilizes vitamin C. - Ergothioneine: Visibly improves uneven tone and boosts vitamin C’s efficacy.Ingredient Callouts: Free of parabens, formaldehydes, formaldehyde-releasing agents, phthalates, mineral oil, retinyl palmitate, oxybenzone, coal tar, hydroquinone, sulfates SLS & SLES, triclocarban, triclosan, and contains less than one percent synthetic fragrance. It is also vegan, gluten-free, and cruelty-free.What Else You Need to Know: This new and enhanced product is a faster and gentler formula with improved packaging. Ferulic acid helps fight against discoloration while ergothioneine improves efficacy and uneven tone for radiant, youthful-looking skin. It is clinically shown to boost glow and reduce the look of wrinkles in as few as 15 minutes.Clinical Results: In an independent clinical study with 30 subjects in 12 weeks, results based on twice daily usage included:- Clinically shown to boost glow in 15 minutes​- Clinically shown to visibly brighten and improve radiance and wrinkles​​In a self-assessment from an independent clinical trial with 30 subjects, after 12 weeks:- 100% agree it feels non-irritating on skin