Post Inflammatory Erythema vs. Hyperpigmentation Dangerous' tanning products promoted by influencers Sun exposure is the most significant contributor to skin damage and premature aging. UV rays penetrate the skin, breaking down collagen and elastin, leading to wrinkles, sagging, and loss of firmness. Hypopigmented burn hypertrophic scar contains melanocytes that can be signaled to re pigment by synthetic alpha melanocyte stimulating hormone in vitro PLOS One