deep hydrating solution exclusive by biotherm 1.69oz Biosource Cleanser, 3.38oz Biosource Lotion, 1.69oz Aquasource Gel, 0.67oz Aquasource Nuit : These light formulas immerse the skin in a delectable bath of revitalizing, moisturizing mineral freshness for an authentic sensory experience. A clear gel-mousse texture that transforms into a light, silky mousse upon contact with water.