Strengthen your hair and improve elasticity whilst reversing the damage caused by chemical treatments, mechanical styling, and heat styling. This leave-in treatment takes just 4 minutes to reverse hair damage by harnessing the power of the K18PEPTIDE.  Working at the innermost layer of your hair, the K18PEPTIDE reconnects the polypeptide chains and disulfide bonds that are broken because of chemical services, heat damage, and bleaching services. The peptide helps to renew strength and elasticity, giving you healthier, bouncy hair - even in cases of severe damage. Benefits of K18 Leave-in Molecular Repair Hair Mask: Suitable for every hair type due to the K18PEPTIDE working at the molecular level. Restores softness, smoothness, and bounce whilst also restoring strength. Vegan, cruelty-free, and colour-safe. How to use:  Shampoo your hair but do not condition. Towel-dry your hair thoroughly. Add three pumps of the K18 mask (add more as needed depending on the length. thickness, and condition of your hair) and apply all over your hair, one pump at a time, to a maximum dose of 9 pumps. Let the formula sit for 4 minutes. Do not rinse out. Comb and style your hair as usual - it's fine to add any heat protectant or styling products at this stage. Use for the first 4-6 washes, then as needed. Ensure to clarify your hair before using the mask by using K18 PEPTIDE PREP Detox Shampoo. Use for 4-6 shampoos in a row for progressive results. Size: Available in two sizes: 5ml and 15ml Key ingredients: K18PEPTIDE