Length Check! Biotin Infused Shampoo: Formulated for all scalp & hair types (1A – 4C). Gently cleanses hair without stripping. Formulated with good-for-you ingredients such as Biotin, Jamaican Black Castor Oil, and Marshmallow Root, this shampoo helps hair feel stronger and reduce the appearance of breakage for longer, thicker hair. Length Check! Biotin Infused Conditioner: Formulated for all hair types & textures (1A – 4C). Made with good-for-you ingredients such as Biotin, Jamaican Black Castor Oil, and Marshmallow Root, this conditioner helps hair feel stronger and reduce the appearance of breakage for visibly longer and thicker hair. Leaves hair moisturized, elastic, and detangled.