+ earn in Skin Type Cash
Dallas Biotin Thickening Shampoo
Is this right for my skin?
Not sure if this product is right for your Baumann Skin Type®? Take the quiz to find out and get up to 20% off your custom routine.
Take the quiz Finish the quizNot rated by skin type
We don’t rate this kind of product against the 16 Baumann Skin Types, so there is nothing here for or against your four letters.
R+Co Dallas Biotin Thickening Shampoo – Volume, Strength & Fuller-Looking Hair Boost body, strengthen strands, and create the look of thicker, fuller hair with R+Co Dallas Biotin Thickening Shampoo.
Authorized retailer
We hold a direct account with R+Co. Every unit is authentic, in date, and stored properly.
Free shipping over $49 · easy returns
Ships in 1 to 2 business days. 30 days to return anything unopened.
Earn Skin Type Cash
Spend it on any future order. Up to 10% back on bestsellers.
What it is and what it does
R+Co Dallas Biotin Thickening Shampoo – Volume, Strength & Fuller-Looking Hair
Boost body, strengthen strands, and create the look of thicker, fuller hair with R+Co Dallas Biotin Thickening Shampoo. This volumizing shampoo is specially formulated to gently cleanse while adding lift, texture, and density to fine, flat, or thinning hair without stripping moisture or weighing hair down.
Powered by biotin, strengthening proteins, and nourishing ingredients, Dallas Shampoo helps support healthier-looking hair while improving softness, shine, and overall manageability for hair that feels clean, bouncy, and full of life.
Why Fine Hair Needs Lightweight Volume
Fine or thinning hair can easily become weighed down by heavy products. Dallas Biotin Thickening Shampoo helps remove buildup while delivering lightweight fullness and support, leaving hair visibly thicker and more voluminous after every wash.
Key Benefits
- Helps create the appearance of thicker, fuller hair
- Gently cleanses without stripping moisture
- Adds volume, body, and lift at the roots
- Supports stronger-feeling strands with biotin and proteins
- Improves softness, shine, and manageability
- Lightweight formula won’t flatten fine hair
Key Ingredients
- Biotin: Helps support healthier-looking, stronger hair
- Strengthening Proteins: Help reinforce fragile strands and improve hair resilience
- Volumizing Agents: Add body and fullness without heaviness
Ideal For
- Fine or flat hair
- Thinning or limp hair lacking body
- Hair needing lightweight volume and strength
- Daily cleansing for fuller-looking styles
What Makes It Different
- Cleanses while helping maintain natural movement and bounce
- Delivers volume without dryness or stiffness
- Designed to support healthier-looking hair with long-term use
With continued use, hair appears fuller, thicker, softer, and more voluminous—revealing healthier-looking body, lift, and shine with every wash.
Full ingredient list
Product type and skin type data
| Brand | R+Co |
|---|---|
| Product type | Shampoo |
Frequently bought together
Dr. Baumann pairs these together.
Reviews
Not sure it suits your skin? Take the quiz to find your Baumann Skin Type. Find my skin type