Commercial 3L OSMIA Liquid Soap Birch for Refill. * This product is currently delivered in a set of 1L pouches x 3 pieces. Experience sauna culture with the scent of birch, which represents Finnish nature. A blend of Osmia's pure, natural birch leaf extract and vegetable oil-based shampoo. More than 90% of liquid soaps on the market are based on petroleum-based gels, but OSMIA's liquid soap is a "real liquid soap" that is made by mixing bar soap with high-quality vegetable oil and stirring it in barrels for three days. You can enjoy the best luxury spa time with a Finnish summer and sauna feeling. Revive and refresh your hair. Due to the combination of the essences of this plant, it brings vitality, shine and softness to the hair. Experience the bounty of the original natural birch leaves created by Osmia on your skin. All shampoos are made from biodegradable ingredients.