The Strengthening Bond Builder by KERASILK is a deep-acting, intensive treatment with Biomimetic Silk and Bondamide. Our 100% vegan formula builds new hair bonds to repair brittle, dull or rough and even highly damaged hair. The Kerasilk Strengthening Bond Builder strengthens the hair structure down to the cortex and prevents future damage - for up to 20 x stronger hair, long-lasting stability and up to 98% less hair breakage. 

This deep acting, high performance hair treatment significantly restores even highly damaged and weakened hair from the inside out and results in 20x stronger hair.
It prevents up to 98% of hair breakage and significantly improves the elasticity of each hair strand.

For long lasting strength and healthy looking hair, apply to towel dried hair and leave in.