C21 Youth Glow Serum

Brightening, Collagen-Stimulating Vitamin C Serum / 1 fl oz

A high-performance brightening serum built around a triple vitamin C complex and multi-molecular-weight hyaluronic acid spheres for layered hydration and superior collagen stimulation. Tetrahexyldecyl Ascorbate, the star of the formula, is a stable, oil-soluble vitamin C shown to promote up to 50% more collagen production than L-Ascorbic Acid alone, with enhanced skin penetration and significantly less irritation. Paired with L-Ascorbic Acid, Ascorbyl Palmitate, and Vitamin E, the antioxidant protection is comprehensive and sustained. Acetyl Heptapeptide-9 and colloidal gold round out the anti-aging profile, while Kakadu plum, blueberry, and marine ferment support brightness and resilience. Suitable for anyone protecting their skin from early aging or actively targeting hyperpigmentation, dullness, and loss of firmness.

Who it's for: 
All skin types and all ages. Especially effective for hyperpigmentation, dullness, fine lines, dehydration, and anyone wanting a daily antioxidant serum with meaningful collagen-stimulating results. A strong option for those who have experienced irritation with traditional L-Ascorbic Acid formulas.

Key Ingredients:

Triple Vitamin C Complex (THD Ascorbate, L-Ascorbic Acid, Ascorbyl Palmitate): 
Three forms of vitamin C with different solubility and penetration profiles working together for brightening, collagen stimulation, and antioxidant protection at multiple skin depths. THD Ascorbate alone is shown to stimulate up to 50% more collagen than L-Ascorbic Acid without the associated irritation.

Multi-Molecular-Weight Hyaluronic Acid (Sodium Hyaluronate, Hydrolyzed Sodium Hyaluronate):
Multiple molecular weights that hydrate at both the surface and deeper layers of the skin, with continuous use stimulating the skin's own hyaluronic acid production.

Acetyl Heptapeptide-9:
A firming peptide that supports collagen synthesis and helps improve skin density and elasticity with consistent use.

Glutathione:
A master antioxidant that amplifies the brightening effect of vitamin C and protects against oxidative damage.

Terminalia Ferdinandiana (Kakadu Plum) Fruit Extract:
One of the highest natural sources of vitamin C on the planet, adding additional antioxidant and brightening potency to the formula.

Colloidal Gold:
Supports skin radiance, enhances the absorption of active ingredients, and provides anti-inflammatory benefits.

Pseudoalteromonas Ferment Extract:
A marine-derived ferment that strengthens the skin barrier, improves resilience, and supports long-term hydration retention.

Ubiquinone (CoQ10):
A potent antioxidant that protects against free radical damage and supports cellular energy for a visibly more youthful complexion.

Tocopherol and Tocopheryl Acetate:
Two forms of vitamin E that work synergistically with the vitamin C complex for enhanced antioxidant protection and moisture retention.

Vaccinium Myrtillus (Blueberry) Extract:
Rich in anthocyanins and antioxidants that protect against environmental aging and support an even, bright complexion.

Full Ingredient List:
Deionized Aqua, Sodium Hyaluronate (L), Butylene Glycol, THD Ascorbate, Ascorbic Acid (L), Glutathione (L), Terminalia Ferdinandiana Fruit Extract, Colloidal Gold, Acetyl Heptapeptide-9, Pseudoalteromonas Ferment Extract, Hydrolyzed Jojoba Esters, Tocopherol (D-alpha), Tocopheryl Acetate, Vaccinium Myrtillus Fruit/Leaf Extract, Saccharum Officinarum Extract, Helianthus Annuus Seed Oil, Acer Saccharum Extract, Citrus Grandis, Glycerin, Hydrolyzed Sodium Hyaluronate, Ubiquinone, Citrus Limon Fruit Extract, Retinyl Palmitate, Ascorbyl Palmitate, Propanediol, Sorbitol, Xanthan Gum, Ethylhexyl Palmitate, Polysorbate 80, Citrus Aurantium Dulcis Fruit Extract, Annatto, Polyacrylamide, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, C13-14 Isoparaffin, Laureth-7, Glyceryl Caprylate, Caprylyl Glycol, Sodium Hydroxide, Phenoxyethanol.