Yes, Cosderma glutathione serum works well for skin lightening and fading pigmentation marks
Chen J, Shan H, Yang W, Zhang J, Dai H, Ye Z
Nathan surveyed roughly 500 research papers, built the only full bioregulator course in existence, and spent over $10,000 of his own money independently lab-testing more than 20 gray-market vials (results included)
Product description CENTELLIAN 24 Expert Madeca Cream Active Renew PDRN (Firing Cream, 50 ml) Elasticity, Soothing and Hydrating Facial Moisturiser with TECA-PDRN, Hyaluronic Acid and Glutathione, Korean Skin Care Ingredients Centella Asiatica Extracts, Madecassic Acid, Niacinamide, Hyaluronic Acid, PDRN (Sodium DNA), Panthenol, Beta Sitosterol, Glutathion, Ceramides Safety Warning For external use only