February 21, 2026

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10 Best biotin thickening shampoos of 2026

Save up to 40% off

1

R+Co
R+Co Dallas Thickening Shampoo | Biotin for Hair Growth, Thickening, + Strengthening | Vegan + Cruelty-Free |
Main highlights

Thickening and Nourishing Formula
R+Co Dallas Biotin Thickening Shampoo thickens, nourishes, and strengthens fine hair with a vegan, cruelty-free formula.

Ideal for Fine and Thinning Hair
Perfect for those seeking volume and strength for fine, thinning hair.

Volume Enhancement Praised
Customers appreciate the noticeable volume increase, making hair look fuller.
9.6

Exceptional

Our Rating

8.9
Sound level

8.4
Aroma

8.2
Gentle
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2

R+Co
R+Co Dallas Thickening Shampoo | Biotin for Hair Growth, Thickening, + Strengthening | Vegan + Cruelty-Free |

10% Off
Main highlights

Thickening and Nourishing Formula
R+Co Dallas Biotin Thickening Shampoo thickens, nourishes, and strengthens fine hair with a vegan, cruelty-free formula.

Ideal for Fine and Thinning Hair
Perfect for those seeking volume and strength for fine, thinning hair.

Volume Enhancement Praised
Customers appreciate the noticeable volume increase, making hair look fuller.
9.3

Excellent

Our Rating

8.9
Sound level

8.4
Aroma

8.2
Gentle
3

Paisle Botanics
Paisle Botanics Biotin Thickening Shampoo – Natural Volumizing Formula for Fine or Thinning Hair and Fuller Looking Volume – Sulfate & Paraben Free, Color Safe for Women and Men – 8 fl oz
Main highlights

Key Features
Natural biotin shampoo with DHT blockers, sulfate and paraben free, promotes hair growth and thickness.

Ideal Use Cases
Perfect for those experiencing thinning hair, suitable for all hair types and safe for colored or treated hair.

Customer Praise
Most reviews highlight its effectiveness in reducing hair loss and appreciating the healthier, fuller hair appearance.
9.1

Excellent

Our Rating

9.5
Hair quality

9.3
Aroma

9.3
Moisturizing
4

Paisle Botanics
Paisle Botanics Biotin Thickening Shampoo – Natural Volumizing Formula for Fine or Thinning Hair and Fuller Looking Volume – Sulfate & Paraben Free, Color Safe for Women and Men – 8 fl oz

10% Off
Main highlights

Key Features
Natural biotin shampoo with DHT blockers, sulfate and paraben free, promotes hair growth and thickness.

Ideal Use Cases
Perfect for those experiencing thinning hair, suitable for all hair types and safe for colored or treated hair.

Customer Praise
Most reviews highlight its effectiveness in reducing hair loss and appreciating the healthier, fuller hair appearance.
8.9

Very Good

Our Rating

9.5
Hair quality

9.3
Aroma

9.3
Moisturizing
5

Avalon Organics
Avalon Organics Therapy Biotin B-Complex Thickening Shampoo, 32 oz
Main highlights

Organic and Nourishing Formula
Certified organic, plant-based ingredients nourish and cleanse hair.

Ideal for Thinning Hair
Perfect for individuals seeking to reduce hair thinning.

Effective Volume Building
Praised for noticeably increasing hair thickness and volume.
8.6

Very Good

Our Rating

8.0
Aroma

8.0
Gentle

8.0
Sound level
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6

Avalon Organics
Avalon Organics Therapy Biotin B-Complex Thickening Shampoo, 32 oz

10% Off
Main highlights

Organic and Nourishing Formula
Certified organic, plant-based ingredients nourish and cleanse hair.

Ideal for Thinning Hair
Perfect for individuals seeking to reduce hair thinning.

Effective Volume Building
Praised for noticeably increasing hair thickness and volume.
8.3

Good

Our Rating

8.0
Aroma

8.0
Gentle

8.0
Sound level
7

OGX
OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 13 fl. oz

36% Off
Main highlights

Volumizing Shampoo Benefits
Infused with biotin and collagen for fuller, healthier hair.

Ideal for Thin Hair
Perfect for flat to medium volume hair needing a boost.

Praised for Volume and Scent
Customers love the added volume and delightful fragrance.
Key specs
- Formula:Vitamin B7, biotin, collagen
- Function:Volumizing, thickening
- Ingredients:Biotin, collagen, wheat proteins
- Sulfate Free:Yes
- Hair Type:Flat to medium volume
8.1

Good

Our Rating

8.9
Gentle

8.7
Aroma

8.7
Moisturizing
8

OGX
OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 13 fl. oz

40% Off
Main highlights

Volumizing Shampoo Benefits
Infused with biotin and collagen for fuller, healthier hair.

Ideal for Thin Hair
Perfect for flat to medium volume hair needing a boost.

Praised for Volume and Scent
Customers love the added volume and delightful fragrance.
Key specs
- Formula:Vitamin B7, biotin, collagen
- Function:Volumizing, thickening
- Ingredients:Biotin, collagen, wheat proteins
- Sulfate Free:Yes
- Hair Type:Flat to medium volume
7.9

Good

Our Rating

8.9
Gentle

8.7
Aroma

8.7
Moisturizing
9

oely

Biotin Hair Growth & Thickening Shampoo with Root Activator, Hair Loss Shampoo for Men And Women, Strengthen Roots, Control Oil & Thicken Thin Hair, Sulfate-Free, for All Hair Types, 10.1 Fl Oz-Fresh

40% Off
7.8

Good

Our Rating
10

Maple Holistics
Rosemary and Biotin Shampoo for Thinning Hair - Vegan Volumizing Shampoo for Fine Hair with B Vitamins Argan Oil & Tea Tree Essential Oil - Paraben Silicone and Sulfate Free Vegan Formula (8 Fl Oz)
Main highlights

Natural Ingredients and Scalp Care
Sulfate-free shampoo with biotin, rosemary, and essential oils for hair and scalp health.

Ideal for Thinning and Fine Hair
Perfect for those seeking volume and nourishment for thin, weak hair.

Praised for Volume and Texture
Customers love the noticeable increase in hair volume and smooth texture.
7.7

Good

Our Rating

9.3
quality of ingredients

9.3
Hair quality

8.9
Aroma

10 Best biotin thickening shampoos of 2026

1

R+Co Dallas Thickening Shampoo | Biotin for Hair Growth, Thickening, + Strengthening | Vegan + Cruelty-Free |

8.9

8.4

8.2

How do we rank?

How do we rank?

Analyzing top stores

2

R+Co Dallas Thickening Shampoo | Biotin for Hair Growth, Thickening, + Strengthening | Vegan + Cruelty-Free |

8.9

8.4

8.2

3

Paisle Botanics Biotin Thickening Shampoo – Natural Volumizing Formula for Fine or Thinning Hair and Fuller Looking Volume – Sulfate & Paraben Free, Color Safe for Women and Men – 8 fl oz

9.5

9.3

9.3

4

Paisle Botanics Biotin Thickening Shampoo – Natural Volumizing Formula for Fine or Thinning Hair and Fuller Looking Volume – Sulfate & Paraben Free, Color Safe for Women and Men – 8 fl oz

9.5

9.3

9.3

5

Avalon Organics Therapy Biotin B-Complex Thickening Shampoo, 32 oz

8.0

8.0

8.0

6

Avalon Organics Therapy Biotin B-Complex Thickening Shampoo, 32 oz

8.0

8.0

8.0

7

OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 13 fl. oz

8.9

8.7

8.7

8

OGX Thick & Full + Biotin & Collagen Volumizing Shampoo, Nutrient-Infused Hair Shampoo with Vitamin B7 Biotin Gives Hair Volume & Body for 72+ Hours, Sulfate-Free Surfactants, 13 fl. oz

8.9

8.7

8.7

9

Biotin Hair Growth & Thickening Shampoo with Root Activator, Hair Loss Shampoo for Men And Women, Strengthen Roots, Control Oil & Thicken Thin Hair, Sulfate-Free, for All Hair Types, 10.1 Fl Oz-Fresh

10

Rosemary and Biotin Shampoo for Thinning Hair - Vegan Volumizing Shampoo for Fine Hair with B Vitamins Argan Oil & Tea Tree Essential Oil - Paraben Silicone and Sulfate Free Vegan Formula (8 Fl Oz)

9.3

9.3

8.9

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