PHYTOPURE® SITO is beta-Sitosterol, a natural sterol produced by most plants. It is structurally related to Cholesterol and relevant component in cellular membranes. Sitosterol – or Phytosterols in general – are important starting materials in the indusstrial synthesis of steroids and hormones. INCI: BETA-SITOSTEROL (Emulsion stabilising, Fragrance, Light Stabilizer, Skin Conditioning)