Editor's TipEditor's Tip

Shampoo hair daily with Kérastase Age Premium Bain Substantif. 

Kérastase

Birchbox Breakdown

As we age, our hair does too. With the passing of years, strands tend to thin out and lose body. Scalp health can also deteriorate, which further contributes to lackluster locks. Luckily, this conditioner can help turn back the clock to relive the happier hair days of youth.

How it Works

A combination of calcium and collagen strengthens strands and stimulates growth. Hyaluronic acid provides mega hydration and balances scalp health for ultimate luster.

How to Use

Apply a quarter-sized dollop over towel-dried strands from mid-length to tip. Let penetrate for about three minutes before rinsing.

More for You!
  • Product orders $50+ and all monthly box brands ship free
  • Free returns within 90 days of purchase
  • Extra samples and gifts in the Bonus Shop

Product Reviews & Sample Feedback

4.0 out of 5 stars, based on 5 reviews 5 Reviews
4.0 out of 5 stars
5 Star
3
4 Star
1
3 Star
0
2 Star
0
1 Star
1
Hair type
Curly
Dry
Fine
Frizzy
Kinky
Normal
Oily
Straight
Thick
Wavy
Hair color
Brown
Blonde
Black
White or gray
Red
Other
Age
17 & under
18-24
25-34
35-44
45-54
55 & over
Apply

Most Helpful Customer Reviews

Love it.

It pairs well with the matching shampoo, but I've also used it with less expensive shampoo with similar results. It's very concentrated and has a lovely fragrance. It really deep conditions my hair, too!
One word of caution: the liquid is rather thin. Be careful when dispensing it. But don't let it fool you -- it's definitely the best conditioner I've ever used! Worth. Every. Penny. (It also lasts forever!)

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Not a fan of this particular Kerastase product

I usually love Kerastase products, however I really don't care for the smell of this one. The smell reminds me of something an old man would wear. Also, my hair does feel as silky smooth as it does after using other Kerastase products.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Less shedding, More Volume!

I bought this for my mom, along with the rest of the age premium line, and it seems to be working. My mom had been complaining that her normally dry, color treated, think, wavy hair was feeling ultra dry, light, thin, and beginning to shed WAY more than usual. Since using the age premium line, we both noticed that her hair seems fuller, softer, and less tangled. I've definitely noticed, since the first time she used it, that she's been shedding much less. It's quite a bit more expensive than other hair lines, but so far it has been worth it. I will most definitely keep purchasing this for my mother, as long as she's happy with it.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Best conditioner

i love this conditioner, it leaves mt hair soft and manageable but not heavy and weighed down. A real treat after styling abuse!

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No
Perked Up!

Having curly and color treated hair, I've noticed a definite change in the texture over the last couple years. I received 2 samples of this shampoo and loved it! Softness and shine were noticeable after one use.

Was this review helpful to you? Yes | No   Was this review helpful to you? Yes | No