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Bain Extentioniste is Kérastase's fortifying shampoo for fine, brittle hair that breaks before it gains length. It cleanses with creatine, ceramide and taurine, which the brand says reinforce the fiber from the inside and protect the surface. It suits anyone chasing longer hair who wants a gentle daily wash rather than a treatment. Against Kérastase's other shampoos it is the length-focused pick, and reviewers rate it highly for leaving hair clean without weighing it down.
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Buyers rate it highly and describe hair that feels stronger and cleaner after regular use. Many pair it with the matching fondant. Some say results on length take months and that it is not a repair treatment for badly damaged hair.
Bain Extentioniste from Kérastase is a fortifying shampoo that stimulates the growth of strong hair from the root. It helps hair grow in length and strengthens the hair that is already there. It is suited to refined and brittle hair.
The shampoo cleans the hair and repairs and protects the fiber. It rebuilds and seals the internal structure of the hair to protect it as it grows. Hair that is raised and more likely to break is reinforced.
To use it, apply a quarter-sized amount to wet hair and lather by massaging. Rinse well, then apply Fondant Extentioniste to support hair growth.
