Bioderma Atoderm Gel Douche 1L. The soap-free softness cleansing gel that respects the skin.. All BIODERMA products are formulated according to the ecobiology principles, which is at the heart of NAOS' approach to respect the skin's ecosystem and preserve its health in a lasting way.. Benefits. Gently cleanses and respects the skin balance. Soothes and protects. Leaves the skin soft after the shower. Rinses off perfectly thanks to its creamy foam. Very good tolerance - Naturally bluish colour - Soap free - Subtle fragrance