R+Co Dallas Biotin Thickening Shampoo, 33.8 Fl Oz (Pack of 1)

TLDR Review: R+Co Dallas Shampoo

Published: February 15th, 2025

Pros

  • Adds volume effectively, especially for baby fine, thin hair.
  • Leaves hair shiny, soft, and full throughout the day.
  • Sufficient lather for a sulfatree shampoo, easier rinsing.
  • Provides a thick, lustrous, and bouncy full head of hair.
  • Gives a 'squeaky clean' feel, ideal for baby fine hair.
  • Hair feels soft without excessive slipperiness, maintaining body and texture.
  • Only a quarteized amount is needed for full use, making it last longer.
  • Effectively supports hair health, especially for thinning hair.
  • Does not weigh hair down, enhancing hair fullness and thickness.
  • Works well when used alone without conditioner or additional products for short hair.

Cons

  • Some concerns if it will maintain volume with repeated washing.
  • Noted as somewhat pricey.
  • Pleasant new spicy scent may be too strong for some and is lonasting.
  • May not be effective for individuals with longer hair or those frequently using styling products, as it may require a large quantity to achieve cleanliness.
  • Occasional issues with removing product buildup after using heavy styling aids.
  • Alternating with other shampoos is recommended for those with fine but dense hair, as it sometimes makes hair appear too voluminous.

Bottom Line

If you're looking for a shampoo that effectively adds volume to fine, thin hair and leaves your locks shiny and soft throughout the day, the R+Co Dallas Biotin Thickening Shampoo could be a great choice. While it comes with a somewhat higher price tag and a strong, spicy scent that may not appeal to everyone, it requires only a small amount per wash, potentially offering longer use. For those with longer hair or who use heavy styling products, an alternative or supplementary product could be worthwhile.

Lowest at Amazon
$87.00 at Amazon
Lowest at any Popular Retailer
$58.98 at Walmart
How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 8 retailers to give you the short version.

Where to Buy

Prices last updated: April 3rd 2026 10:25 pm
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