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Quantity
1
One time purchase
$38.00
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For big, beautiful, bouncy hair, use DALLAS. This thickening shampoo adds vitality to fine, flat hair while nourishing and strengthening from root to tip.
Reviews
4.7
376 ratings
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Great shampoo
I just love this shampoo--- works so well! It has given me healthier, thicker hair with lots of body and shine. Highly recommend. Also the conditioner -- dreamy companion.
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Nancy · May 30, 2026
Biotin Thickening Shampoo
I love this biotin thickening shampoo, it leaves my hair feeling full, softand shiny. I recommend it to anyone who wants to have a head full of thick, soft and shiny hair! It will leave your hait with a lot of volume!!!
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Esperanza · May 16, 2026
All time fave
I can tell my hair is thicker and breaks less after using this shampoo and conditioner consistently. It may be my all-time fave shampoo -- especially when you consider the scent. I jokingly say I buy it as much for the scent as for the shampoo itself!