KerastaseResistance Bain Extentioniste Shampoo | Length Strengthening Shampoo | Protects Hair and Scalp from External Aggressors | With Ceramides to Enhance Shine | For Damaged Hair

I always wait a couple months before I can honestly give a review for a beauty product that is this expensive. Preface: my hair is very long, thick and straight. I also have bayalage colors on the ends- so this also makes my hair somewhat dry/damaged. I wanted a product that would help strengthen the roots and also help with split ends. I have used Olaplex before this but I felt that Olaplex was not as effective anymore. Finally, I only wash my hair once a week. I did a lot of research on all of the available hair products that would my type of hair. I settled for Kerastase.I will also like to add: to make sure that this is effective for you, understand that their are companion products to this that make it work. Not only just the shampoo, but the conditioner and the hair serum afterwards (see photos). So develop a routine of using these 3 products and it will work. They all smell great (clean, almost cucumber smell) and they all are lightweight and don't weigh down my hair. My hair feels sleek and stronger compared to olaplex or store bought shampoo.CON: the size/amount of the shampoo. Since I have long hair, i use a lot of product. It lasted about two months. But again, I don't wash my hair everyday. Since this seems like a Euro-derived product, I will look at how much it is when I'm on that side of earth to see if it is cheaper. But I would recommend trying it.

Little bit pricey but definitely worth it!!

My hair has been through it. Heat damage? Check. Questionable DIY dye jobs? Oh, absolutely. One ill-advised phase where I thought bleaching twice in one day was “no big deal”? We don’t talk about it.I expected this shampoo to try—like a weak apology from a toxic ex. But no. This stuff actually does the work. One wash, and my hair went from brittle despair to looking like it has a 401(k) and drinks green juice for fun. The ceramides? Magic. The shine? So disrespectful, I could blind my enemies with a hair flip.Would I recommend? Yes. But be warned—your hair is about to act like it never knew struggle.

It is very gentle, cleans thoroughly, and has a wonderful scent.

This shampoo is formulated to strengthen hair & reduce breakage. I would luv to grow my hair longer. Fingers crossed, this shampoo will enable me to do that.

Makes my hair so shiny and alive. I’m 74 and this is great for my hair. Combined with other products in this line, my hair looks amazing.

Realmente el producto es muy bueno !! Sin mentir ves los resultados desde la primera aplicación . Ya llevo semana con él y ese cabello que se veía dañado por descolaraciones continuas a mejorado un montón

I’ve used other kerastase products that I loved-this one is definitely not worth the money at all. Would not recommend.