Kairō Yuzu Vitamin C Essence

Lightweight essence featuring vitamin C derived from yuzu fruit — a Japanese citrus prized for its high ascorbic acid content and superior stability compared to synthetic L-ascorbic acid. Penetrates evenly to brighten, reduce hyperpigmentation, and boost collagen synthesis. Buffered pH of 4.5 delivers efficacy without the irritation and stinging common with direct acid vitamin C serums. Layer between toner and serum in the Japanese multi-step order. 50ml dropper bottle.