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R+Co Dallas Biotin Thickening Shampoo | Thickens, Nourishes + Strengthens | Vegan + Cruelty-Free |

4.4 4.4 out of 5 stars 4,769 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Hair Shampoo by R+Co

Sustainability features

This product has sustainability features recognized by trusted certifications.

Packaging efficiency

Reduced air and/or water in the product or packaging for more efficient transportation.

As certified by
Compact by Design (Amazon-developed Certification) Compact by Design (Amazon-developed Certification)

Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions.

Learn more about this certification

Part of
Climate Pledge Friendly

R+Co
Premium Brand Sourced

We work closely with your favorite premium beauty brands and their approved resellers to ensure the premium products sold in our stores are authentic.

Learn more
To see product details, add this item to your cart. You can always remove it later.
8.5 Ounce (Pack of 1)

Purchase options and add-ons

Brand R+Co
Item Form Liquid
Hair Type Thin
Scent Floral
Age Range (Description) Adult

Description

For big, beautiful, bouncy hair, use DALLAS. This thickening shampoo adds vitality to fine, flat hair while nourishing and strengthening from root to tip

Benefits

Thickening, Nourishing, Strengthening, Rejuvenating, Volumizing, Thermal Protection, UV Protection

Suggested Use

Apply to the middle of your hair and work through to the roots and ends.

Buy it with

$38.00 ($4.47/Ounce)
Get it as soon as Tuesday, Apr 2
In Stock
Ships from and sold by Amazon.com.
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$34.00 ($4.00/Fl Oz)
Get it as soon as Tuesday, Apr 2
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Ships from and sold by Amazon.com.
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$38.00 ($7.60/Ounce)
Get it as soon as Tuesday, Apr 2
In Stock
Ships from and sold by Amazon.com.
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Sustainability features

Sustainability features

This product has sustainability features recognized by trusted certifications.

Packaging efficiency

Reduced air and/or water in the product or packaging for more efficient transportation.

As certified by
Compact by Design (Amazon-developed Certification) Compact by Design (Amazon-developed Certification)

Compact by Design identifies products that, while they may not always look very different, have a more efficient design. By reducing water and/or air in the product or packaging, these become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions.

Learn more about this certification

Part of
Sustainability features
Climate Pledge Friendly

From the manufacturer

Dallas Shampoo

Complete the Look

Rodeo Star Mobile

RODEO STAR Thickening Foam

For big, beautiful, bouncy hair. This thickening shampoo adds vitality to fine, flat hair while nourishing and strengthening from root to tip.

Dallas Biotin thickening conditioner

DALLAS Thickening Conditioner

The final step for hair as big as Texas. This thickening conditioner will prolong vitality and enhance shine.

Dallas Thickening Spray

DALLAS Thickening Spray

Quintessential spray for a mega blow-dry. Great for volume at roots, control at ends and an overall smooth look. Tons of body and shine w/o stiffness.

Death Valley Mobile

DEATH VALLEY Dry Shampoo

The quickest way to get volume and body into your hair. This dry shampoo absorbs extra oil and adds texture for an untamed look.


Focus on sustainability

Compact by design from Climate pledge friendly. Certified by Amazon.

Small changes in product size & weight lead to lower carbon emissions.

We created Compact by Design to identify products that, while they may not always look very different, have a more efficient design. With the removal of excess air and water, products require less packaging and become more efficient to ship. At scale, these small differences in product size and weight lead to significant carbon emission reductions.

Here are a few of the many ways products can qualify:

Less packaging

Less air in container

More efficient shape

Waterless technology

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.3 x 2.3 x 5.6 inches; 9.6 ounces
  • Item model number ‏ : ‎ 810374024843
  • UPC ‏ : ‎ 810374029831 810374024843 810374020555
  • Manufacturer ‏ : ‎ R+Co
  • ASIN ‏ : ‎ B017GGC9BI
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.4 4.4 out of 5 stars 4,769 ratings

Looking for specific info?

Customer reviews

4.4 out of 5 stars
4.4 out of 5
4,769 global ratings

Customers say

Customers like the thickness, quality and comfort of the shampoo. For example, they mention it's a great product that leaves their hair feeling clean and soft, and it smells wonderful. Some are satisfied with the effect on hair, volume, and style. That said, opinions are mixed on the value.

AI-generated from the text of customer reviews

162 customers mention129 positive33 negative

Customers like the quality of the shampoo. They say it's a great product, it leaves their hair feeling clean, and it adds body and thickness to their hair. Some say that it does a good job of cleaning their fine oily hair. Overall, most are satisfied with the quality and performance of the product.

"...Rinsing out: The shampoo and conditioner both rinse out easily, and my hair feels thicker in the shower--there is a bit of a 'squeaky clean' feel,..." Read more

"For the price, it is really nice. It makes my hair feel fuller and soft. The scent is kinda lacking though." Read more

"...my hair is not dried out looking, has a pleasant smell and rinses out completely leaving my hair shiny. I would recommend it." Read more

"The shampoo does a good job of cleaning my fine oily hair and it smells ok...." Read more

134 customers mention103 positive31 negative

Customers like the smell of the shampoo. They say it smells wonderful.

"...The scent is very nice too. If you are scent-sensitive, you may not like this really apparent spicy scent but I enjoyed the experience...." Read more

"Provides some body, smells good and very thick." Read more

"Since using this shampoo my hair is not dried out looking, has a pleasant smell and rinses out completely leaving my hair shiny. I would recommend it." Read more

"...It makes my hair feel fuller and soft. The scent is kinda lacking though." Read more

54 customers mention45 positive9 negative

Customers like the effect of the shampoo on their hair. They mention that it gives good body to their hair, makes it appear fuller, thicker, and healthier. Some say that it has transformed their fine straight hair and is great for fine hair that needs a lift.

"For the price, it is really nice. It makes my hair feel fuller and soft. The scent is kinda lacking though." Read more

"...half an inch longer every month on average, and I have experienced little to no hair loss compared to when I used non-biotin shampoos...." Read more

"My hair seems more healthy when I use it." Read more

"...It still makes my hair look more full, lathers better & doesn’t look dirty. I will probably look for a different option when it’s gone." Read more

50 customers mention41 positive9 negative

Customers like the thickness of the shampoo. For example, some mention that it makes their hair feel thicker, while others say that it doesn't thicken their hair. That said, most say that the product gives their hair the appearance of being thicker. That's because it adds fullness without compromising texture.

"Provides some body, smells good and very thick." Read more

"This shampoo and conditioner really does thicken the hair, keeps it shining and easier to style." Read more

"...You can use it sparingly and it is very thick, smells wonderful and really works great on thin hair!..." Read more

"You really do get fatter hair at least I did. And it's clean too. And shiney and manageable...." Read more

42 customers mention32 positive10 negative

Customers like the volume of the shampoo. They say it adds volume to fine hair, thin hair, and thick hair. Some say it provides a bit more thickening quality. Overall, customers are happy with the volume and thickness of the product.

"...I don’t know how, but it works. After only one use, my hair had much more volume...." Read more

"...I appreciate lift, volume, hold, and to be able to work with it through out the week...." Read more

"I like it. smells great and adds volume to my fine hair. Would order again." Read more

"...This product did not provide the volume I am seeking. However, it does give hair nice shine, pleasant fragrance and sleek feeing...." Read more

39 customers mention33 positive6 negative

Customers like the style of the shampoo. They mention that it helps with overall appearance and shine, making their hair healthier in general. They also say that it makes their fine hair look better than it ever has, thicker, and gorgeous. Customers also appreciate the pleasant fragrance and sleek feeling of the product. Overall, customers are happy with the style and recommend it to others.

"...I really am impressed. My hair is shiny and soft and full and stayed that way all day. The scent is very nice too...." Read more

"This shampoo and conditioner really does thicken the hair, keeps it shining and easier to style." Read more

"You really do get fatter hair at least I did. And it's clean too. And shiney and manageable...." Read more

"...Lots of thick suds. Most importantly, makes hair shiny with cleanliness and gives some body...." Read more

38 customers mention38 positive0 negative

Customers like the comfort of the shampoo. They say it leaves their hair feeling soft, clean, and shiny. Some say it gives their hair texture. Overall, most are satisfied with the product's comfort.

"...The shampoo and conditioner both rinse out easily, and my hair feels thicker in the shower--there is a bit of a 'squeaky clean' feel, and that helps..." Read more

"For the price, it is really nice. It makes my hair feel fuller and soft. The scent is kinda lacking though." Read more

"...It feels clean and soft so hopefully it holds up and I don’t end up with greasy roots and stringy hair but so far so good!" Read more

"...Leaves your hair looking health, shiny and soft. Is very nice. It has a faint scent of cleanliness and nothing overpowering." Read more

63 customers mention21 positive42 negative

Customers have mixed opinions about the value of the shampoo. Some find it well worth the price, while others say it's too expensive in larger size. They also say it’s very expensive for stripping shampoo and disappointing.

"...I delayed buying this shampoo because it is so expensive; but, as it turns out, you only need to use a very small amount of the shampoo so it does..." Read more

"...This one fits the bill. It’s a great shampoo and a decent price. I’m quite happy with this product." Read more

"...It is a little expensive, but I use it every few washes." Read more

"...Moreover, it’s very expensive for stripping shampoo. I may be wrong about this and I would love to hear back from somebody else reviewing." Read more

No more oily hair!
5 Stars
No more oily hair!
So let me start off by saying how much I love this shampoo and conditioner. All my life I have had to wash my hair every day because my scalp gets too oily and therefore itchy. I would scratch my head and get dandruff. No matter how much I tried to train my scalp to skip a wash it never worked. Finally my hair dresser recommended these products and OMG guys, I CAN LITERALLY GO WITHOUT WASHING MY HAIR FOR 3-4 DAYS NOW! My hair doesn’t get excessively oily anymore, no itchiness, and no more dandruff. The best shampoo and conditioner I’ve ever tried! Love it!
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