You can simply store it in a paper or metal box.
A solid shampoo from SoaphoriaHair Care has the same effects as a classic liquid shampoo, but it is also environmentally friendly and highly practical. Soaphoria Hair Care, 80 g, Shampoo Bars for Women, Every step towards conservation counts today. Characteristics: cleans the hair and scalp thoroughly regenerates and nourishes hair restores hair’s lost shine and softness How to use: Apply directly to hair or lather between the palms of your hands and then gently massage into the hair from the root to the ends.