Macaron shampoo is the new trending solid state shampoo, which boast many advantageous. The stable solid state form is resistant to microbial and fungal growth, thus much simpler ingredient list as preservatives and stabilizers are not required. The stable ingredients also allows addition of conditioning ingredients effectively. Thus, no separate conditioning is needed for normal hair. Last but not least, the solid state shampoo does not need any plastic bottle container, which is strong environmental friendly factor. One Macaron shampoo eliminates the use of at least 2 plastic bottles! The solid shampoo is also compact and very useful for travelling.