Dermalogica Biolumin-C Serum is a high-potency vitamin C face serum clinically designed to brighten, firm, and strengthen the skin. Featuring a highly bioavailable vitamin C complex, it delivers up to 3x more vitamin C to the skin, improving elasticity and boosting radiance. This lightweight serum helps defend against free radical damage, visibly reduces pigmentation, and smooths fine lines and wrinkles. Consumer-tested results show noticeably smoother, brighter, and rejuvenated skin with regular use. Ideal for dull, uneven, and aging skin, it supports a healthier, more luminous complexion.