GlyMed Plus Diamond Bright Skin Illuminator is a professional-grade brightening serum that uses a concentrated combination of Vitamin C, brightening peptides, and light-diffusing minerals to instantly and progressively improve skin radiance, reduce hyperpigmentation, and create a visibly more luminous, even complexion. It addresses both the immediate optical effect of dullness and the underlying biochemical causes of skin discoloration.Vitamin C (Ascorbic Acid and/or a stable derivative) provides the primary brightening mechanism — inhibiting tyrosinase to reduce melanin overproduction, supporting collagen synthesis, and neutralizing UV-generated free radicals that trigger hyperpigmentation formation. Peptides including brightening signal peptides target melanin synthesis pathways at multiple points for comprehensive depigmentation activity. Niacinamide disrupts melanosome transfer from melanocytes to keratinocytes — blocking pigmentation distribution at a separate step from tyrosinase inhibition. Light-diffusing micro-minerals (Diamond Powder, Mica) provide an immediate optical brightening and skin-blurring effect that makes skin look more radiant while the active ingredients work progressively below the surface.Apply morning and/or evening after cleansing, before moisturizer and SPF. Available at Beauty Riche — authorized GlyMed Plus retailer with same-day shipping.