I came across the Kiehl's hair product line some time ago in september and try this deep repair mask.
This product lives up to all these claims on my hair. I left it for 20 to 30 minutes with or without heat. Both left me with very moisturized and soft hair, yet strong. I tried it also under the steamer or all night and it waouh me.
One thing I particularly like is that I can use this product straight from the jar without mixing it with anything, like I do with the Paul Mitchell Super charged moisturizer.
My hair LOVE LOVE this product.
I'm usually heavy handed when it comes to hair masks but with this one, a little goes a long way.
I wish it would come in a bigger jar though.
I'm also on a fence because of the price tag: at 33 euro a 250ml jar, it is insane!
It's a very good product overall but very expensive. I will purchase it only with a discount code.