Amaranth Extract
Thickens
Boosts hair thickness and strength, preventing excess breakage and shedding.
BEFORE
AFTER
Photos submitted by customers. Results may vary.
Why it's unique?
11.3% increase in hair thickness
After 3 applications with Amaranth Seed Extract - the key ingredient in our formula.
This fast-absorbing mist uses a unique blend of actives with Amaranth Seed Extract - a natural plant source from ancient grain that increases hair thickness from the inside out.
Extensive Treatment works in the first application!
In the first week, you'll notice an increase in strength shine and reduced shedding, as well as improved elasticity.
Key ingredients
Powered by clinically-inspired ingredients
Each ingredient is selected for a clear purpose: stronger roots, healthier scalp, and visibly fuller-looking hair.
Hibiscus Extract
Repairs
Conditions against dryness and damage, preventing frizz, split ends and breakage.
Baobab Protein
Protects
Provides UV protection, preventing damage while improving strand elasticity and rejuvenating.
Why it works
Our hair treatment gently boosts thickness and strength with a blend of botanicals and polymers, helping to reduce breakage and shedding over time. It also nourishes, adds softness, protects from heat, and repairs damage.
Full ingredient list
Ingredients
Complete list of vitamins, minerals, and botanical extracts used in our formula.
View full ingredients
Water, Amaranth Seed Extract, Hydrolyzed Baobab Protein, Hydrolyzed Quinoa, Rosemary Leaf Extract, Hibiscus Flower Extract, Polysorbate 80 (Coconut derived), Phenoxyethanol, Ethylhexylglycerin, Aloe Barbadensis Leaf Extract, Marshmallow Root Extract, Fragrance.
Formulated without
Sulfates, Mineral Oils, Parabens, Phthalates, Sodium Chloride.
Suggested Use
Apply Extensive Thickening Treatment directly on to the hair strand. You can apply it to damp or dry hair, and proceed to style as usual.
FAQ
Frequently Asked Questions
Everything you need to know before you start.
Does this product contain Minoxidil or other drugs?
Extensive Thickening Treatment is 100% drug-free, and it does not contain minoxidil or any other drugs, but rather works by providing a natural solution for boosting hair thickness at the strands.
How ofter should I use it?
For best results, use Extensive Thickening Treatment daily.
What is the difference between this and the Intensive Growth Drops?
Intensive Hair Growth Drops targets the scalp, promoting hair growth and thickness at the roots. Extensive Thickening Treatment targets the hair strand, boosting hair thickness and preventing breakage. Both should be used together if you wish to grow healthier, fuller hair.
How long does it take to see results?
You should start to see meaningful results after 15 - 30 applications. This product contains proven ingredients that increase hair thickness by 11.3% after 3 applications.
What is the difference between this and the Volumizing System?
Extensive Thickening Treatment is a treatment to increase hair thickness over time. It does not provide instant volume - instead, you can style your hair as you wish. The Volumizing System promotes instant volume, as it is a styling product.
Customer Reviews
4.9 Based on 441 Reviews
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DH
01/23/2025
Doris H.
United StatesAwesome 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
CK
12/11/2024
Carolyn K.
United StatesGreat 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!
CR
09/10/2024
Csilla R.
CanadaThickening treatment
I love this product, it is visible now even I don't use it every day. I recommend this product honestly.
MM
02/23/2024
Monica M.
United StatesBest hair days
Love this product so much I got my daughter using it and she loves it!!
02/23/2024
Kerotin
Thank you for sharing your positive experience with us. It's wonderful to know that our product has earned your trust and satisfaction.
AS
09/20/2023
Amy S.
United Statesexcellent
I love it I use it every time after I wash my hair it’s fantastic
09/20/2023
Kerotin
Hi Amy! Thank you so much for taking the time to share your experience with the product and we appreciate your honest feedback!
