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Kerotin Extensive Thickening Treatment Spray for Fine and Thin Hair - Spray I Hair Diameter Booster and Heat Protectant. All-natural, Cruelty and Alcohol-Free, Made in the USA. (1)

  • Based on 1,330 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Aug 16
Order within 20 hours and 34 minutes
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Size: 4 Fl Oz (Pack of 1)


Features

  • A lightweight, diameter booster hair treatment that penetrates the hair fiber to increase thickness over time while nourishing and restoring strands. Ideal for fine, thin, weak hair.
  • Extensive Thickening Treatment uses polymer technology with scientifically proven, natural ingredients to increase hair diameter and boost hair growth while providing moisture, movement, heat protection, and Keratin healing.
  • ALL-NATURAL INGREDIENTS: Enjoy thicker, fuller, longer hair with Kerotin's Thickening Mist, formulated with NaturePep Amaranth to penetrate the hair fiber and increase thickness in as little as three applications.
  • EASY TO APPLY AND INCORPORATE INTO YOUR ROUTINE: Apply Extensive Thickening Hair Treatment daily over the entire length of hair, from root to ends, to increase thickness over time while nourishing, and stimulating growth. For instant volume, combine with the Kerotin Volumizing Line.
  • 100% MADE IN THE USA AND NOT TESTED ON ANIMALS: Kerotin Hair Care products are created with the highest quality ingredients available to help women successfully navigate hair changes, offering healthy and effective solutions for each need. Products do not have side effects and are free of alcohol and parabens.

Package Dimensions ‏ : ‎ 5.91 x 2.2 x 2.17 inches; 8.15 ounces


UPC ‏ :


Manufacturer ‏ : ‎ Extensive


Best Sellers Rank: #50,539 in Beauty & Personal Care (See Top 100 in Beauty & Personal Care) #648 in Hair Sprays


#648 in Hair Sprays:


Customer Reviews: 4.1 4.1 out of 5 stars (1,330)


Brand Name: K Kerotin


Age Range Description: Adult


UPC: 611851704322


Manufacturer: Extensive


Item Type Name: Hair Spray


Manufacturer Part Number: Kerotin


Scent Name: Natural


Item Form: Spray


Active Ingredients: rosemary


Hair Type: All


Number of Items: 1


Item Volume: 118.29 ml


Unit Count: 4 Fluid Ounces


Material Type Free: Alcohol Free


Recommended Uses For Product: Hair Growth, Hair Nourishing, Hair Strengthening


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Works
It helps putting body in my fine hair
Reviewed in the United States on July 9, 2026 by pamela pushkin

  • Hair is fuller and more manageable
Great product to increase hair volume. When I use it people comment on the fullness of my hair. No stickiness, gumminess or fullness. Im on my 2nd bottle and it goes a long way
Reviewed in the United States on January 13, 2026 by kathryn daniels

  • Heat protection
I'm half way through my first bottle..I have very fine and thin hair and this product seems to be making it a little thicker and it's protecting my hair from heat damage..not as dry looking
Reviewed in the United States on August 23, 2025 by Jeanine Jarvela

  • Takes time
Hasn’t worked yet, but too soon to tell.
Reviewed in the United States on April 26, 2026 by Amazon Customer

  • Wonderful product!
I’ve been using this for probably over a year and it’s fantastic! My hair is full and honestly recommend for continuous use!
Reviewed in the United States on April 30, 2026 by Dawson222

  • EXCELLENT
#awesomeness
Reviewed in the United States on June 4, 2026 by JAMES CORCORAN

  • Great Buy
My third reorder! I love this product! It is light and penetrates easily. I highly recommend for thining hair.
Reviewed in the United States on March 19, 2026 by Barbara Shops

  • Yes
Good
Reviewed in the United States on July 6, 2026 by Elly M de la Rosa Colon

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