SPIRULINA HAIR SOAP FOR VOLUME THANKS TO ALGAE PROTEIN This algae hair soap is really something very special: The combination of protein and vitamin-rich spirulina algae ensures the optimal supply of nutrients to the hair and moisturizes the scalp. Sauerland soap bars & AKAL Food have met thanks to the market enthusiasts, so the idea is to combine the best of the two. Sonja Schulte's expertise to conjure up a high-quality hair soap with regional bioactive German spirulina. Here is our marbled piece of jewelry. Algae happiness in one piece. The spirulina shampoo soap bars, a natural hair soap made from German raw food spirulina with grapefruit scent HANDMADE IN GERMANY — The bioactive spirulina is harvested regionally in Hesse and processed into handmade soap in the Sauerland region. 120% German sustainable craft.