This is obviously just for old time sake because Serum Nuit is discontinued long ago. But I had to chime in that in 2019 I have STILL found anything even close to how amazing this leave in serum/condi...

Wow!! Best hair treatment I've ever used!! I put a tablespoon worth into my dry hair at night and I love how it feels in the morning- so smooth and healthy and even looks smoother and shinier. This is...

I guarantee you that if the price were cut in half, the re-buy rate would be 100%. This is THAT amazing. When I woke up after putting it in, my hair was like the hair of dreams and commercials. So ...

I got a sample of this, and a little goes a long way. This product is awesome for someone with really dry and thick hair, who really need extra TLC. OR if your winters are harsh and your hair could us...

As with all Kerastase products, price is too much, but I had to go and repurchase, it's that good. My hair is relaxed and this disappears into the hair leaving it moisturized, looks wet at first but t...

WOW. what an excellent product! i must confess i am a product junkie, and while i was awaiting its arrival in the mail, i had scribbled Tigi's night serum onto my reallife notepad for future reference...

i have thick hair and very very dry hair because i used to dry my hair with hair dryer and style it with flat iron.. i felt i had the worst hair in this world until i found this serum.. it changed my...

i used to use this and i have to say that its THE best night serum for the hair in the world,belive me!!! this product makes the hair just really soft and very healthy looking i just dont use it anymo...

i was sceptical of what this serum could do but it works like a dream for someone like me who washes her hair at night and wouldnt want her hair greasy e nxt day when she goes to work. Hair is noticea...

I don't know what this has in it, but it worked very well for me on vacation. I would use it as a leave-in along with some serum (usually Moroccan Oil) and let it air dry. It left my hair shiny and so...