R+Co Dallas Biotin Thickening Shampoo
- 8.5 fl oz bottle
- Biotin, coconut oil and loquat fruit extract
- Thin hair, all hair colors
- Sulfate, paraben and gluten free, vegan
- Up to 55% post-consumer recycled packaging
- Leaping Bunny certified
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A sulfate free volumizing shampoo with biotin for thin hair that wants more body and fullness. It cleanses gently, so heavy product build-up may need an occasional clarifying wash.
As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.
ASIN: B017GGC9BICategory: Hair Shampoos
Overview
Not a heavy repair shampoo, this R+Co cleanser is built to lift thin hair with biotin, coconut oil and loquat fruit extract. You massage it into the scalp on wet hair and work it to the ends before rinsing.
Thin hair gets body and movement without silicone weight, plus a vegan, sulfate free formula. Thick or coarse hair may find it does little beyond cleansing.
Who it's for
Flat, fine hair that loses volume quickly is the main match. Those with dense, frizz-prone hair would do better with a smoothing formula.
Pros and cons
- Builds body on thin hair
- Sulfate and paraben free
- Vegan and Leaping Bunny certified
- Conditions the scalp
- Gentle cleanse may miss heavy build-up
- Floral scent may not suit everyone
- Targets thin hair only
- Thickness effect is cosmetic
Performance notes
Volumizing shampoos work by cleansing without leaving coating agents, so roots lift instead of lying flat. Massaging into the scalp removes oil where flatness starts. Biotin and loquat extract support the feel of the strand, but visible thickness comes mostly from cleaner, lighter roots.
Specifications
| Brand | R+Co |
|---|---|
| Dimensions & fit | |
| Item Weight | 0.6 pounds |
| Item Dimensions | 2.3 × 2.3 × 5.6 inches |
| Capacity & performance | |
| Liquid Volume | 8.5 fl oz |
| Age Range Description | Adult |
| Construction & materials | |
| Material Type Free | Mineral Oil Free, Paraben Free, Sulfate Free, Gluten Free, Petrolatum Free |
| Suitable Hair Color | All Hair Colors |
| Included components | |
| Unit Count | 8.5 fl oz |
| Other details | |
| Hair Type | Thin |
| Active Ingredients | Biotin |
| Item Form | Liquid |
| Scent Name | Floral |
| Number Of Items | 1 |
| Product Benefits | Thickening, Nourishing, Strengthening, Rejuvenating, Volumizing, Thermal Protection, UV Protection |
| Other Special Features Of The Product | Not Tested On Animals |
| Recommended Uses For Product | don't add pro finder |
| Item Highlight | Volumizing + Strengthening Shampoo for Fuller, Thicker-Looking Hair |
Frequently asked questions
What comes in the R+Co DALLAS Shampoo listing?
One bottle with 8.5 fl oz of biotin thickening shampoo.
Is R+Co DALLAS Shampoo sulfate free?
Yes. It has no sulfates, parabens or gluten and is vegan.
How do I use DALLAS Thickening Shampoo?
Apply to wet hair, massage into the scalp and work through to the ends before rinsing.
Is it safe for colored hair?
The suitable hair color field lists all hair colors.