for sensitive and irritated scalp with cold essential oils A genuine bath of softness, Astera Soothing shampoo immediately procures a sensation of soothing and freshness thanks to cold essential oils and Asteracea extract. This shampoo ensures gentle cleansing and easy, smooth detangling. The scalp is soothed and hair regains strength and health. A specialist in deep-acting hair care, Rene Furterer has always used essential oils. Rare and infinitely precious, a guarantee of effectiveness and a source of sensory pleasure, they are carefully selected for their treating and olfactory virtues.