This is an extremely high-quality sunscreen for extreme conditions. It will moisturize the skin and protect from moisture loss and over-exposure to UVA/UVB/UVC radiation under the harshest of conditions. Don’t let the SPF35 fool you, this product outperforms SPF60 to SPF85. Lasts 24 hours with one application. Must be washed off with soap and water. Fragrance-free, Parabens-free, waterproof, rub-proof and PABA-free. Extremely high protection across the entire UVA and UVB spectrum. It's been to Mount Everest twice and Aconcagua in Argentina, each time with remarkable results.