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Biotin is one of the most popular hair vitamin on the market and is trending thanks to a generous media coverage fed by influencers and so-called “experts”. In fact, Biotin is believed to play an important role in the production of keratin, which theoretically means thicker and fuller hair. Let’s discover the best cruelty-free and vegan biotin shampoo for hair growth.

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Biotin: What You Need to Know

Biotin Structure

Chemical structure of biotin (vitamin H/B7)
Credit: Wikipedia

What’s Biotin?

Also known as vitamin B7 (or vitamin H), biotin is a water-soluble vitamin which naturally supports hair growth by promoting production of keratin (the main component of hair). Long story short, biotin is believed to strengthen existing strands as well as nourish growing hair follicles, improving thickness and durability in the long run.

Biotin is widely promoted as a “miraculous” hair growth solution by the hair care industry. Is it true? Is it a scam? We’ll see that the answer falls in between.

Does Biotin Work?

Yes and no. Let’s be as clear as possible. While biotin supplements has proven benefits in people with biotin deficiencies, it is not proven to have any effect on healthy people. In other words, biotin can both promote hair growth and prevent hair loss only in persons affected by a biotin deficiency. Because thinning hair and hair loss are common symptoms of biotin deficiency, biotin supplements are wrongly considered as universal hair growth boosters. Biotin supplements exist in “fun” edible form, like gummies. If taken excessively, they are not always safe.

On the other hand, a 2013 study found that a biotin shampoo and conditioner improved hair volume and thickness in women. The study involved 30 women who used the biotin shampoo and conditioner for 3 months. At the end of the study, the women had a significant increase in hair volume and thickness compared to the baseline measurements. It’s worth noting that while this study suggests that biotin may be beneficial for hair health, more research is needed to confirm these findings and determine optimal dosages and treatment durations.

If you still want to try biotin, instead of eating it like candies, try adding it to your hair cleansing routine with a vegan biotin shampoo.

Best Cruelty-Free & Vegan Biotin Shampoos for Hair Growth

Whether you’re looking for a biotin hair product or any hair growth product in general, always go for natural solutions. If you suffer from hair loss, you really don’t want to develop another problem! Some biotin-based shampoos contain chemicals which are linked with different types of irritations, allergies, hormonal dysfunctions and even cancers.

Safe, natural and cruelty-free shampoos often include essential oils and other natural active ingredients. Together, they help biotin’s absorption into the scalp for a deeper hair follicles nourishing. To save you time, we picked for you some of the best cruelty-free, vegan and natural biotin shampoos.


Biotin & Sun-Kissed Mandarin Shampoo - Love Beauty And Planet

  • Deeply cleanses, hydrates and strengthens hair
  • With natural and ethically-sourced oils and extracts
  • No parabens, silicones, dyes, phthalates or sulfates
  • Vegan, cruelty-free
  • 32.3 fl oz / 955 mL
Get It on Amazon


Dallas Biotin Thickening Shampoo - R+Co

  • Boosts vitality to fine hair while nourishing and strengthening from root to tip
  • With biotin, pro-vitamin B5, saw palmetto berry extract, coconut oil
  • No gluten, mineral oils, parabens or sulfates
  • Vegan, cruelty-free
  • 8.5 fl oz / 241 mL
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Original Gold Label Biotin Shampoo - Pura d'Or

  • Clinically proven to reduce hair thinning by promoting hair strength and thickness
  • Packed with biotin, nettle extract, pumpkin seed, tea tree oil and black cumin seed oil
  • No gluten, sulfates, parabens, phthalates, mineral oils or petrolatum
  • USDA Certified Biobased Product
  • Vegan, cruelty-free
  • 16 fl oz / 473 mL
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Lavender & Biotin Full Volume Shampoo - Andalou Naturals

  • With biotin & lavender, adds essential protein for thicker, fuller hair
  • 98% nature derived, 70% certified organic content
  • Non-GMO Verified
  • No gluten
  • Vegan, cruelty-free
  • 11.5 fl oz / 340 mL
Get It on Amazon


Vanilla & Lavender Hair Thinning Therapy Biotin Shampoo - Pura d'Or

  • Detoxifies the scalp and encourages healthy hair, strength, and resiliency
  • Blend of 15 DHT herbal extracts and essential oils
  • No gluten, SLS (sulfates), parabens or other harmful chemicals
  • Vegan, cruelty-free
  • 16 fl oz / 473 mL
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Vegan Biotin B-Complex Shampoo - Avalon Organics

  • With biotin, saw palmetto, quinoa protein, and vitamin E
  • No parabens, no harsh preservatives, no synthetic colors or fragrances, no phthalates and no sulfates
  • Non-GMO
  • Vegan, cruelty-free
  • 32 fl oz / 946 mL
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Biotin Strengthening Shampoo - Purezero

  • Promotes hair growth, hair volume, thickness and strength while reducing hair breakage and frizziness
  • No gluten, sulfates, parabens, dyes, phosphates or phthalates
  • Vegan, cruelty-free
  • 12 fl oz / 341 mL
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Hair Volumizing & Thickening Biotin Shampoo - Mokita Naturals

  • Helps repair damage and helps promote stronger, fuller and richer hair
  • Infused with biotin, ProVitamin B5 and 7 botanical extracts
  • No sulfates, parabens or alcohol
  • Vegan, cruelty-free
  • 8.5 fl oz / 250 mL
Get It on Amazon

Even if well-documented and carefully written, this content should not be used as a substitute for professional diagnosis and treatment. Consult a qualified health care provider before making any health care decisions about any specific medical condition.

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Amie A.

With a pen in my wand and a hairbrush as my scepter, I craft tales as captivating as my coiffures. Words and hair do more than just impress – they inspire in a style that's my own.

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