GOOP 20% Vitamin C + Hyaluronic Acid Glow Serum

What it is: A daily serum that combines two skin-care powerhouses to help brighten the appearance of the skin, leaving it looking radiant, luminous and healthy. Who it's for: Ideal for all skin types.What it does: The unique two-part design maximizes potency and freshness, delivering a serum that stays active all the way through its use. The ingredients work synergistically to help brighten the appearance of the skin, significantly improving its firmness, tone, texture and hydration and leaving it looking radiant, luminous and healthy. Before your first use, mix the superpotent 20% Vitamin C powder with the hyaluronic acid serum. The hyaluronic acid serum contains three different molecular sizes to penetrate different layers of the skin, as well as the antioxidant superfruit Australian kakadu plum.Key ingredients:- 20% vitamin C (L-ascorbic acid): proven in research to be the purest, best-for-skin form of the antioxidant Vitamin C- Hyaluronic acid: a powerful humectant that retains moisture in skin so it looks and feels hydrated and plumpResearch results:In a four-week, third-party consumer and clinical study of 55 women ages 27 to 50:Immediately, after one use:- 100% of women showed a dramatic improvement in skin hydrationAfter four weeks of twice-daily use:- 90% of women said their skin looked and felt brighter- 90% of women said their skin looked and felt smoother- 85% of women said their skin looked healthierHow to use: Apply the serum to clean, dry face and neck in the morning and evening. Unscrew the tip of the serum activator and squeeze all the contents into the bottle containing the pure vitamin C powder. Screw the cap on the bottle and shake well until the powder fully dissolves. Replace the cap with the dropper; it's now ready to use. Paraben-free; phthalate-free; silicone-free; synthetic fragrance–free Made in the USA