KAVA, an active ingredient derived from kava root extract combined with hydroxypropyl cyclodextrin, butylene glycol, and water, is specifically formulated for sensitive skin. It inhibits TRPV1 and GABA expression, rapidly alleviating redness and irritation and providing lasting relief. This yellow liquid, soluble in both alcohol and water, is suitable for serums, lotions, and creams. The recommended dosage is 0.2–20%, effectively calming the skin and ensuring formula stability.