Three 40g bottles ≃ 85 uses
An aluminum bottle infinitely recyclable with a PP cap. No overpack.
The equivalent of a conventional 250ml shampoo. It is a powder shampoo 4 times lighter, about twice as small and a saving of 200ml of water. With 3 shampoos of 40 grams you can make up to 85 shampoos if your hair is short to medium length.