Goldwell Kerasilk Strenghtening Bond Builder

Repairs, strengthens, and reinforces from roots to ends.

This professional leave-in treatment rebuilds and strengthens the internal structure of hair that has lost its resilience due to colouring, bleaching, or heat styling. With innovative Bondamide™ technology and the Biomimetic Silk complex, it penetrates deep into the hair fiber to rebuild and reinforce broken bonds. Hair becomes stronger, smoother, and visibly healthier after the very first use.

Benefits

• Strengthens weakened hair and restores its natural structure
• Reduces hair breakage by up to 98% with regular use
• Hair becomes up to 20× stronger than untreated strands
• Smooths the hair surface and enhances elasticity and shine
• Suitable for all hair types, especially chemically or heat-damaged hair
• 100% vegan formula – free from silicones, sulfates, colorants, mineral oils, microplastics, and parabens

Key ingredients

• Bondamide™ – advanced technology that rebuilds and reinforces internal hair bonds, improving overall resilience.
• Biomimetic Silk – an innovative ingredient that mimics natural silk to deliver smoothness, shine, and flexibility.

How to use

1. Wash hair with shampoo and gently towel-dry.
2. Apply the treatment to damp hair, focusing on mid-lengths and ends.
3. Leave on for several minutes to allow active ingredients to penetrate deeply.
4. Do not rinse – this is a leave-in treatment.
5. Use once a week or as needed, ideally after chemical or heat treatments.