The Glow Serum is a stable vitamin C serum with niacinamide and vitamin E — a morning antioxidant layer for the look of brighter, more even tone across face, neck, and décolletage. It uses a stable vitamin C derivative that resists the oxidation that turns most vitamin C serums brown and useless within weeks, so it keeps working through the life of the bottle. Free shipping on every order. 30-day full-refund guarantee. Who it’s for. This serum suits people who want brightening that doesn’t oxidize in the bottle, who layer antioxidants under SPF for daytime defense, who have the look of uneven tone or dark spots, or who prefer stable vitamin C derivatives over unstable L-ascorbic acid. It’s not the right fit if you want immediate dramatic brightening (this is cumulative), are extremely sensitive to vitamin C in any form, or insist on high-concentration L-ascorbic acid despite its stability problems. Why it works. Pure vitamin C (L-ascorbic acid) is potent but notoriously unstable — it oxidizes on contact with air and light, which is why so many serums stop working before the bottle is empty. This formula uses 3-O-ethyl ascorbic acid, a stable derivative that resists oxidation and converts to active vitamin C in the skin. Vitamin E extends the antioxidant coverage and stabilizes the vitamin C, while niacinamide works on the look of even tone through a separate pathway. Three antioxidants, one morning layer. The key ingredients and the evidence. Ethyl Ascorbic Acid is a stable vitamin C derivative for brightening (Iliopoulos 2019, Int J Pharm X). Niacinamide supports a comfortable barrier and the look of calmer skin, smaller pores, and even texture (Bissett 2004, Int J Cosmet Sci). Vitamin E (Tocopheryl Acetate) adds antioxidant support and stabilizes the vitamin C (Lin et al. 2005, J Invest Dermatol). How to use it. Apply 3 to 5 drops to clean skin in the morning, before moisturizer and SPF, and store away from direct light and heat. In a full routine, cleanse with the Daily Cleanser, hydrate with the Hydration Serum, and seal with the Dew Cream. This serum is the antioxidant step of the AM Routine; the eight-week payoff is in the daily sequence, not any one bottle. What to expect. Weeks one to three, no oxidation orange — the bottle stays clear and effective. Weeks four to six, tone looks more even and brighter with consistent use. Weeks eight to twelve, a more luminous-looking baseline from daily antioxidant support. Common questions. Will it irritate sensitive skin? The actives are dosed for tolerability, not maximum potency; patch test for three nights if you’ve reacted before. Mild tingling on first use is common with vitamin C; persistent burning is not. When will I see results? Brighter, more even tone over about four to six weeks; smoother texture over eight to twelve. Can I use it with retinol? Don’t combine high-strength vitamin C and retinol in the same routine — alternate AM and PM. Morning or night? Morning, before SPF — that’s when antioxidants earn their keep. Full ingredients. Aqua (Water), Butylene Glycol, Aluminum Starch Octenylsuccinate, 1,2-Hexanediol, Niacinamide (Vitamin B3), Panthenol (Provitamin B5), Propanediol, 3-O-Ethyl Ascorbic Acid (Vitamin C), Ammonium Acryloyldimethyltaurate/Carboxyethyl Acrylate Crosspolymer, Linoleic Acid, Phospholipids, Tocopheryl Acetate (Vitamin E), Sodium Citrate, Acacia Senegal Gum, Xanthan Gum, Ethylhexylglycerin, Citric Acid. “Three antioxidants doing real work. My skin looks brighter in a way that reads as rested, not made up.” — Kris Made in USA | 1 fl oz
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