Our hydrating stick contains isoking acid and glycerin stearate. It creates a barrier between the skin and the sun, preventing skin dehydration and reducing the risk of sunburn; SPF 50, waterproof, easy to use, long-term moisturizing. Its use is simple: open the transparent cover of the product, gently rotate the bottom shaft, and roll out the pull rod. Apply gently and evenly to the skin. Nourishes and moisturizes plant essences, locks in moisture, keeps skin soft and smooth, and provides adequate sun protection.