Zhejiang Corethym Biotechnology Co., Ltd.

Corethym specializes in high-purity ceramides and retinoids for advanced skin barrier solutions. Our portfolio includes plant-derived PhytoCera, synthetic Cera EOP, full-spectrum ceramides (NP, AP, NS, AG, NG, EOP), and a complete vitamin A series (Retinol, RP, HPR, RL, Retinyl Palmitate, 50A, 50B, HPR 10). Beyond pure ingredients, we provide cutting-edge nanodelivery technologies like liposomes and rapid 28-day custom sampling. We partner with brands to co-create biomimetic, patent-protected actives — from concept to mass production.