PCA Skin 4% Pure Retinol Peel

The most advanced retinoid peel in the PCA Skin line — an exclusive physician-strength treatment formulated with 6% pure retinol and calendula extract for antioxidant, anti-inflammatory, and healing benefits. Designed for normal to resilient skin, it lifts and reduces discoloration while smoothing, strengthening, and brightening. Delivers dramatic visible results through extensive peeling. Best results come from a series or pair of treatments spaced 4–6 weeks apart. This is professional-grade correction for skin that's ready for it.