Hair Thickening

Extensive Thickening Treatment

441 reviews
$ 33
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Boost Thickness & Strength + Prevent Breakage

This lightweight, diameter-boosting hair treatment uses botanicals and polymer technology to increase hair thickness, strength and resistance over time, preventing breakage and shedding. Also providing moisture, movement, thermal protection, and damage repair. 

Ideal for: Women with fine and thin hair with excessive breakage, looking to boost thickness and strength. 

* Free of Sulfates, Mineral Oils, Parabens, Phthalates, Sodium Chloride 

Customer Reviews
4.9 Based on 452 Reviews
5 ★
94% 
426
4 ★
4% 
19
3 ★
1% 
4
2 ★
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JV
03/28/2025
Julia V.
United States

Thick hair spray

I have been using this product for years. Love the thick hair treatment. Product Made my hair fully, looks great. I recommend to my friends at work.

Kerotin Extensive Thickening Treatment Review
SR
03/28/2025
Susan R.
United States

Excellent Product!

I am 79, my hair had started to get much thinner. I began your Kerotin Extensive Thickening Treatment two years ago and wow! My hair is now as thick as it was when I was a teenager. Honestly! I wash my hair once a week and use this product. Terrific results.

Kerotin Extensive Thickening Treatment ReviewKerotin Extensive Thickening Treatment Review
DH
01/23/2025
Doris H.
United States

Awesome product!

I have been using it last couple years after experiencing a bald head from cancer!! After hair started coming back I faithfully, and still do use it. Keeps volume to my hair. Have some friends using now also . Blessed to have a good hair feel and volume!! Thanks for this products results for me. Doris Hannah👍

Kerotin Extensive Thickening Treatment Review
CK
12/11/2024
Carolyn K.
United States

Great product

I have very thin hair and the Kerotin Extensive Thickening Treatment has been great for my hair. I have new growth and it helps to give me curls when I have always had straight hair. It's an amazing product!

Kerotin Extensive Thickening Treatment ReviewKerotin Extensive Thickening Treatment Review
CR
09/10/2024
Csilla R.
Canada

Thickening treatment

I love this product, it is visible now even I don't use it every day. I recommend this product honestly.

Kerotin Extensive Thickening Treatment Review