Ingredient Science
Evidence-led explainers on skincare actives: what an ingredient actually does at the molecular level, how to read clinical evidence, and how formulation context (pH, concentration, vehicle) changes results. Every post links primary sources such as PubMed, FDA, and AAD. Written for curious users, not a substitute for medical advice.
Niacinamide: What the Science Says About Vitamin B3 for Oily, Congested Skin
Oct 14, 2026 · YinShun
A niacinamide explainer: how vitamin B3 calms, strengthens the barrier, and balances oil, what the clinical evidence says at 4% to 5%, why we chose 4% in the YinShun formula, and five quick FAQ answers.
Centella Asiatica (Cica): What the Science Says About the Skin-Soothing Botanical
Oct 14, 2026 · YinShun
A cica (Centella asiatica) explainer: what the triterpenes do, what the evidence says about soothing, collagen support, and barrier care, why we chose 1% in the YinShun formula, and five quick FAQ answers.
Salicylic Acid 2%: What the Science Says About BHA for Oily Skin
Oct 14, 2026 · YinShun
A 2% BHA explainer: why salicylic acid works inside the pore, what the clinical evidence says, why we chose 2% in the YinShun formula, and five quick FAQ answers.