L-Ascorbyl Palmitate (LAP)

• INCI: Ascorbyl Palmitate
• Chemical name: L-Ascorbic acid 6-palmitate
• CAS No.: 137-66-6
• Form: White to slightly yellow crystalline powder
• Solubility: Oil-soluble

It is an ester of Vitamin C (ascorbic acid) and palmitic acid, designed to make Vitamin C lipid-soluble and more stable for use in creams, serums, and emulsions.
Functions & Benefits
Antioxidant: Neutralizes free radicals and protects skin lipids from oxidation (e.g., UV or pollution damage).
Collagen booster: Converts to active ascorbic acid in skin; supports collagen synthesis and firmness.
Skin brightener: Helps fade dark spots and uneven tone by inhibiting melanin formation.
Stabilizer: Protects oils and actives (including Vitamin E) from rancidity and oxidation.
Synergistic with Vitamin E Regenerates oxidized tocopherol → “E + C antioxidant synergy.”
Formulation Use
Use level: 0.2 – 2 %
PhaseOil phase or cool-down (pre-dissolved in a lipid)
Solubility Oil-soluble (use light esters or warm oils to dissolve)
Processing temperature≤ 80 °C (avoid prolonged high heat)
pH stability 4 – 7
Compatibility: Works well with Kojic Dipalmitate, Sepiwhite, N-Acetyl Glucosamine, Niacinamide, and Vitamin E.

Cosmetic Applications

• Facial creams / serums: Antioxidant, brightening, anti-aging
• Sunscreens / after-sun care: Photoprotection booster
• Body lotions: Tone-evening and oxidative protection
• Hair oils / serums: Protects oils and colorants from oxidation