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R+CoDALLAS Biotin Thickening Shampoo

Shampoo

$34 $38

You save $4 (11%) off the list price

or save up to 19% more with Subscribe & Save on Amazon

Size 251 ml, $4.01 / fl oz

Sold by Amazon.com. Amazon's shipping and returns apply. Who sells R+Co on Amazon

Amazon price as of Oct 5, 2026, 2:00 AM ET, subject to change: the price on Amazon at checkout is the one that applies. We may earn a commission; the price you pay is the same.

L'Oréal Paris Elvive Total Repair 5 Repairing Shampoo
12 cheaper on the same shelf, from $0.27 / fl oz. See them

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About the Product

What it is: Shampoo, 251 ml. Volumizing shampoo. DALLAS Biotin Thickening Shampoo helps boost volume, body and fullness for thicker-looking hair.

What Else You Need to Know:

  • Strengthening + thickening hair shampoo: Biotin improves the keratin infrastructure of hair, increasing your hair's strength and vitality
  • Conditioning formula: Coconut Oil and Loquat Fruit Extract help improve volume and movement while conditioning the scalp
  • How to use: Apply to wet hair, massage into the scalp and work through to the ends before rinsing
  • People + planet friendly: No sulfates, parabens or gluten, vegan, Leaping Bunny Certified, and made with up to 55% post-consumer recycled (PCR) packaging

From the Amazon listing.

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Cheaper on the Same Shelf

Shampoo, for less per ounce on Amazon

$34 $38

$4.01 / fl oz