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. Directions:: 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. 1.0 oz./ 30 mL