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Direct AntioxidantsRecommended: AM Slot

L-Ascorbic Acid (Vit C)

Clinical Overview

Potent biological antioxidant scavenging daytime reactive oxygen species (ROS) and regulating melanogenesis.

Epidermal & Cutaneous Mechanism

Donates electrons to neutralize singlet oxygen and lipid peroxides, co-factors prolyl hydroxylase for collagen synthesis, and suppresses tyrosinase.

Addresses Skin Concerns
Photodamage protectionMelasma & hyperpigmentationCollagen maintenance
Recognized INCI Names on Packaging Labels
Ascorbic Acid3-O-Ethyl Ascorbic AcidTetrahexyldecyl AscorbateSodium Ascorbyl Phosphate
Compatible Synergies
  • Niacinamide (modern myth-busted)
  • Ceramides
  • Vitamin E (Tocopherol)
  • Daily Sunscreen
Separate or Alternate
  • ⚠️Retinoids (use PM)
  • ⚠️AHA/BHA (excessive acid burden)

Layering Rules & Life-State Compatibility