Kerastase Bain Extentioniste Shampoo
Length strengthening shampoo for slow growing, damaged lengths.
Key Benefits
- Strengthens fragile hair strands
- Supports slow hair growth
- Improves length retention in damaged hair
How to Use
Apply to wet hair after washing. Massage into the lengths and roots. Rinse thoroughly.
| Product Feature | Details |
|---|---|
| Shampoo Type | Length strengthening |
| Target Hair Type | Slow growing, damaged lengths |
| Key Ingredients | Protein-rich formula with nourishing agents |
FAQ
Can this shampoo be used on color-treated hair?
Yes, it is suitable for color-treated hair as it is formulated to strengthen without compromising color.
Does it help with hair regrowth?
It supports slow hair growth by strengthening existing strands, but it does not stimulate new hair growth.
Is it safe for curly or textured hair?
Please contact customer service

Dominic Piper –
My damaged hair has become stronger and more manageable after using this shampoo regularly. The lengths feel less brittle and I notice more growth over time. It’s a great addition to my hair care routine.
Frank Sutherland –
I’ve tried several length-boosting shampoos, but this one stands out for how it improves the strength of my slow-growing hair. It doesn’t leave my hair feeling heavy or dry.
Trevor Turner –
After two months of use, my hair feels more resilient and the split ends have reduced significantly. I’m happy with the results and would recommend it to others with damaged lengths.