DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
NEW
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
DALLAS Biotin Thickening Treatment
NEW

DALLAS

Biotin Thickening Treatment

$38.00
Rated 4.4 out of 5
Based on 57 reviews
Helps build texture for a long-lasting, voluminous effect.

Size

3 OZ

Frequency

Complete Your Regimen

Details

  • Description

    Our mega-thickening treatment helps build texture for a long-lasting, voluminous effect. It fortifies hair without weight, delivering instantaneous, visible results in minutes.
  • Claims

    Visible results after one application*:

    • Increased thickness + volume: fiber diameter +1%
    • Reduced split ends + flyaway’s through 10 washes

    *Clinical tests conducted on chemically treated hair, exposed to extreme damaging conditions of bleaching, washing, blow-drying and flat ironing.

  • Good For

  • Ingredients

Vegan

Gluten Free

Leaping Bunny-Certified

No Parabens

Bottle & Cap Made From 55% PCR

Fragrance

DARK WAVES

Cardamom
Pineapple
Tangerine
Lavender
Bamboo
Blonde Woods

A warm romantic scent

Shop Scent

How to Use

Apply to hair after washing, leave on for 5 minutes and rinse.

Reviews

average rating 4.4 out of 5
Based on 57 reviews
  • 5 Stars
    44 Reviews
  • 4 Stars
    4 Reviews
  • 3 Stars
    2 Reviews
  • 2 Stars
    1 Review
  • 1 Star
    6 Reviews
84% of reviewers would recommend this product to a friend
Customer photos and videos
57 Reviews
Reviewed by Christine E.
Verified Buyer
I recommend this product
Hair Type
Straight
Hair Density
Medium
What is your main hair goal?
Volume + Texture
Rated 5 out of 5
Review posted

Smells so good

Honestly this stuff smells so good and does a great job of thickening!

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Reviewed by Olga
I recommend this product
Hair Type
Wavy
Hair Density
Fine
What is your main hair goal?
Volume + Texture
Rated 5 out of 5
Review posted

Awesome!

I bought mine at the salon and it’s amazing! My hair is very fine and thin… I tried so many products and was sceptical… but this really works! You do have to hold it for full 5 min, then rinse off… I skip conditioner and use leave in from R&co on my ends only… then I use defending spray and style! It literally looks like I have so much more hair! Love it!

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Reviewed by Glenda L.
Verified Buyer
I recommend this product
Hair Type
Wavy
Hair Density
Fine
What is your main hair goal?
Volume + Texture
Rated 5 out of 5
Review posted

Great thickener

Works as described!

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Reviewed by Jordan
I recommend this product
Rated 5 out of 5
Review posted

5 Stars

R+Co biotin thickening treatment is the best biotin formula I’ve ever used. As someone with already thick hair who wants to keep their hair strong, this is a must have

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Reviewed by Shannon C.
Verified Buyer
I recommend this product
Hair Type
Straight
Hair Density
Fine
What is your main hair goal?
Hydration + Repair
Rated 5 out of 5
Review posted

Amazing

Have loved this treatment! Makes your hair so silky smooth!

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