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Y Theorem Repair Light Serum NAC Y²

Special Price $315.00 was $350.00

A lightweight alternative to the 111SKIN hero serum, this fluid formula boasts an abundance of anti aging benefits for youthful, restored skin.

International shipping available

A lightweight alternative to the original Y Theorem, this serum packs all the punch of the original formula but with a lighter, water-like texture. This serum is ideal for humid environments, and excellent for post-acne scarring. This Light Serum supports the optimal environment for collagen production, diminishing the appearance of fine lines and wrinkles. Its light formulation moisturizes skin without feeling heavy, and added brightening agents also help to target pigmentation.

Light anti aging serum repairs and renews the skin Amino acids improve skin elasticity Aminocaproic acid heals, prevents scarring, calms and soothes skin Excellent treatment for post-operative or laser treatments.



  • Formulated with a lighter texture to the original
  • Clinically proven to reduce wrinkle depth and appearance
  • Excellent treatment for post-operative or laser treatments
  • Intensely hydrating and reparative


30 ml  /  1.01 fl oz

Massage the serum onto the face and neck with a gentle patting motion. Apply the appropriate day or night cream on top of the serum.

Aqua / Water / Eau, Glycerin, Alcohol, Benzyl Alcohol, Aloe Barbadensis (Aloe Vera) Leaf Extract, Calendula Officinalis Extract, Carbomer, Sodium Hydroxide, Aesculus Hippocastanum (Horse Chestnut / Marron) Seed Extract, Sodium Ascorbyl Phosphate, Panthenol, Niacinamide, Thiamine Hcl, Riboflavin, Pyridoxine, Cyanocobalamin, Glycyrrhiza Glabra (Liquorice / Réglisse) Root Extract, Prunus Armeniaca (Apricot/ Abricot) Kernel Oil, Acetyl Cysteine, Fragrance / Parfum