Polysaccharide-K (PSK)

Polysaccharide-K (PSK) (INCI: Trametes Versicolor Extract), a protein-bound polysaccharide derived from the Coriolus versicolor mushroom. This biologically active compound is renowned for its potent immunomodulatory and skin-protective properties. Ideal for high-end reparative creams, immune-boosting serums, and protective formulations for sensitive or stressed skin. High-purity raw material sourced via advanced biotechnology. Direct factory supply. Get a quote today!

Product Specification

• INCI Name: Trametes Versicolor Extract (or Coriolus Versicolor Extract)
• Botanical Source: Trametes versicolor (Cloud Mushroom)
• Standardization: 30% - 40% Polysaccharide content (Glucan-rich)
• CAS No.: 121544-77-0
• Appearance: Light yellow to brown fine powder
• Solubility: Partially soluble in water, dispersible in aqueous phase

Product Uses

Polysaccharide-K (PSK) acts as a high-performance "biological response modifier" in skincare. It significantly enhances the skin's natural defense mechanisms by supporting macrophage activity and modulating cytokine expression. Its deep-acting reparative properties make it indispensable for anti-inflammatory treatments, pollution-shielding products, and post-sun recovery formulas. In the anti-aging market, PSK is highly valued for its ability to neutralize free radicals and promote a resilient, youthful skin barrier, catering to the growing consumer demand for mycotherapy-inspired beauty.

Formula Suggestions

Recommended usage levels range from 0.1% to 2.0%. For optimal stability, it is suggested to pre-disperse the powder in warm water (approx. 50°C) or glycerin before adding it to the aqueous phase or during the cool-down stage of an emulsion. PSK remains stable across a wide pH range (4.5–7.5). Combine with Beta-Glucan for synergistic barrier reinforcement and multi-layered immune support for the skin.