The Alpecin Caffeine Shampoo is a natural hair loss prevention product formulated in Germany. With a volume of 2x 375ml, this liquid shampoo contains caffeine as its main ingredient, known for promoting stronger and thicker hair. The product is not tested on animals, making it a cruelty-free choice for those looking to improve their hair health. With a refreshing natural scent, this white-coloured shampoo is ideal for normal skin types.