- Keratin forms 65% to 95% of the hair and it is an important protein needed by our hair. Ossian Amino Keratin Shampoo is specially formulated with rich Keratin Amino Acids. It provides deep cleansing and helps to increase the elasticity of your hair, making hair combing easier. It contains special components that aid in having a softer, smoother, and stronger hair. It is suitable for all hair types.