Designed as the third step (after their Glow Tonic Cleansing Gel and iconic Glow Tonic ) in your skin care ritual, Pixi's Glow Tonic Serum is a featherweight formula that layers your skin with beneficial brightening nutrients that help you achieve a balanced, radiant complexion. Enriched with glycolic acid - a member of the alpha hydroxy acid family - this gentle, exfoliating formula dissolves the bonds binding dulling dead cells to skin's surface, to reveal the 'new' healthy skin cells undernea