Drunk Elephant C-Firma Fresh Vitamin-C Day Serum is a super-potent vitamin C day serum designed to visibly firm, brighten, and improve signs of photoaging. This Costco set includes three sizes (0.17, 0.87, and 0.94 fl oz), making it an ideal value set or introduction to the full C-Firma system.

What sets C-Firma Fresh apart is its unique two-part mixing system: a powder and a liquid are kept separate until first use, then mixed together to activate the vitamin C at peak potency. Once mixed, the formula is proven to maintain nearly 95% of active vitamin C for one year. The serum is formulated at a skin-friendly pH of 2.5 and is certified Clean at Sephora. It is free of essential oils, silicones, fragrances, dyes, and solvent alcohols. Dermatologist tested, vegan, and cruelty-free.

Key actives include 15% L-Ascorbic Acid, the gold-standard form of vitamin C known for improving fine lines, wrinkles, and hyperpigmentation; 0.5% Ferulic Acid for antioxidant protection against UV-generated free radicals; and 1.0% Tocopherol (Vitamin E) to help maintain moisture and support ingredient stability. Supporting ingredients include licorice root extract, grape juice extract, sodium hyaluronate crosspolymer, pumpkin and pomegranate ferment extracts, marula oil, and carrageenan extract. Full ingredients: Water/Aqua/Eau, Dimethyl Isosorbide, Ascorbic Acid, Laureth-23, Glycerin, Tocopherol, Lactobacillus/Pumpkin Ferment Extract, Sclerocarya Birrea Seed Oil, Dipotassium Glycyrrhizate, Glycyrrhiza Glabra (Licorice) Root Extract, Vitis Vinifera (Grape) Juice Extract, Ferulic Acid, Phyllanthus Emblica Fruit Extract, Camellia Sinensis Leaf Extract, Lactobacillus/Punica Granatum Fruit Ferment Extract, Propanediol, Gluconolactone, Sodium Hyaluronate Crosspolymer, Sodium Hyaluronate, Oryza Sativa (Rice) Bran Extract, Glutamylamidoethyl Imidazole, Tetrahydrobisdemethoxydiferuloylmethane, Tetrahydrodemethoxydiferuloylmethane, Tetrahydrodiferuloylmethane, Pentylene Glycol, Caprylhydroxamic Acid, Leuconostoc/Radish Root Ferment Filtrate, Sorbic Acid, Phenoxyethanol, Sodium Benzoate, Caprylyl Glycol, Chondrus Crispus (Carrageenan) Extract, Ethylhexylglycerin.

In a clinical study with 30 participants over four weeks, 100% showed improvement in skin tone and radiance, 96% showed improvement in overall hyperpigmentation, and 93% showed smoother skin texture. To use, apply one pump in the morning to a clean, dry face, neck, chest, and backs of hands, then follow with sunscreen.