Nécessaire The Hand Retinol is a nightly repair serum. The formula blends retinol, AHA, and peptides to diminish the look of crepiness, lines, wrinkles, spots, and marks. This fast-absorbing, non-greasy treatment aims to repair the unique skin of hands. It contains encapsulated retinol, prepping AHA, amino acids, vitamins and glycerin to support the skin barrier.