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Hair Boost Serum - Biotin Hair Growth Serum for Thicker-Looking Hair

Rated 4.7 stars
243 Reviews
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BOLDIFY’s Biotin-infused Hair Boost Serum naturally supports fuller, denser and healthier-looking hair without the harmful side effects of hair-loss drugs. 30 natural, plant-powered ingredients and 4 clinically proven peptides work synergistically to nurture scalp health, nourish hair follicles, enhance strand strength and visibly lengthen hair. Whether you’re dealing with hair loss, thinning hair, slow hair growth, or just want thicker, stronger hair, this powerful Biotin serum delivers beautiful results in all hair types!

Thicker-Looking Hair in just 2 easy steps!

1. Use once a day (before bedtime is preferred).
2. Apply ⅓ of a dropper directly onto your clean, dry scalp. Massage your scalp to distribute and activate the product. 

Natural Hair Boost Complex: Hair needs nourishment, hydration, and key nutrients to grow strong and healthy. We’ve created the ultimate superhero team for your hair, bringing together 30 premium ingredients that work together to promote holistic hair wellness and give you the look of a thicker, denser, fuller head of hair!

Pure Natural Ingredients:

  • Biotin for visibly longer, stronger strands and reduced breakage.
  • 4 Clinically Proven Peptides: REDENSYL, PROCAPIL, CAPIXYL, BAICAPIL.
  • Saw Palmetto and Ginseng to energize hair follicles.
  • Coconut Oil for a healthy scalp and hair shaft integrity.
  • Peppermint Oil to stimulate healthy circulation around hair follicles and combat excess fall.
  • Rosemary Oil for a healthy, invigorated scalp.
  • Castor Oil to help balance scalp pH and support keratin production.
  • Avocado Oil for strand strength, integrity, and shine.
    Plus many, many more!

  • Lightweight, Non-Greasy Finish: Leaves hair feeling soft, thick, and manageable, never oily or greasy. Argan, coconut, and avocado oils infuse hair with healthy hydration to promote strand strength and integrity without weighing down your locks.

    Drug-Free + No Side Effects: Many hair loss drugs can have harsh side effects, but this anti-hair loss serum is a 100% natural solution. It is FREE from all hormones, parabens, synthetic fragrances, glutens, phthalates, alcohol, GMOs & toxins. Cruelty-free, NO animal testing, no heavy buildup or residue.

    USA-made, money-back satisfaction guarantee: If you don’t love your results, we’ll refund your purchase price– no questions asked– and you can even keep the bottle! BOLDIFY products are formulated by top leading stylists for beautiful healthy hair.


    Crafted By Expert Stylists


    Based on an in-depth consumer study, MORE THAN 75% of people agree or strongly agree that after using Boldify Hair Boost Serum for 120 days:

    They saw an improvement in the appearance of their hair thickness;
    Thinning areas appeared denser;
    Thinning hair looked thicker;
    Hair looked fuller;
    Their thinning hair concerns were addressed;
    Hair was left looking beautiful and healthy;
    They felt more confident after using the product;
    Hair felt stronger;

    Experience stronger looking roots, reduced breakage, visibly longer hair and a more full-bodied look with consistent use!

    BOLDIFY Hair Boost Serum is packed with all of the natural, ethically-sourced hair boosters you want… and none of the “nasties” you don’t. It’s 100% free from all hormones, parabens, synthetic fragrances, glutens, phthalates, alcohol, GMOs and toxins.

    Argan Oil, Bamboo, Caffeine, Green Tea, Cacay Oil, Coconut Oil, Pumpkin Oil, Termeric, Sunflower Oil, Keratin, Peppermint Oil, Ginseng, Provitamim B5, Avocado Oil, Rosemary Oil, Copper Peptide, Saw Palmetto and Lemongrass Extract.


    BOLDIFY is committed to clean. These three power packed body boosters are included in our Hair Boost Serum for their effectiveness, safety, and boost growth properties that not only work together, but ensure stronger, healthier-looking locks long-term.

    Argan Oil

    Moisturize your hair and scalp and protect your hair from everyday damage. By reducing breakage and split ends and keeping your scalp healthy, argan oil may help prevent hair loss for thicker, fuller hair.

    Coconut Oil

    Coconut oil is a natural way to help your hair get longer and thicker, faster. The vitamins and essential fatty acids naturally found in coconut oil nourish the scalp, and help to remove sebum build-up from hair follicles.


    Rosemary is known to help promote circulation in the scalp, and reduce premature greying and dandruff

    We craft every bottle of BOLDIFY Hair Thickening Fibers in our GMP approved lab - without Animal Derived Ingredients or Harmful Artificial Preservatives – and we never test on animals. Rest assured you’ll see thicker hair from this NATURAL, EFFECTIVE, and SAFE product or we’ll refund you every penny – no questions asked.

    Rated 4.7 stars
    Based on 243 reviews
    Total 5 star reviews: 172 Total 4 star reviews: 71 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend this product
    243 reviews
    • G
      Verified Buyer
      I recommend this product
      Rated 5 stars
      23 hours ago
      Feels so good!

      This product actually makes my scalp and hair feel so good - like it's energized! Looking forward to future results after contiued use. Will definitely buy again.

    • S
      Verified Buyer
      I recommend this product
      Rated 5 stars
      23 hours ago
      Impressed so far

      It’s easy to use with its dropper and it’s not oily feeling so with it needing to be daily use and not washing my hair every day my hair or scalp won’t be getting oily. It has a nice peppermint smell but it isn’t too strong. Overall I’m happy especially with it being all natural too!

    • S
      Verified Buyer
      I recommend this product
      Rated 5 stars
      23 hours ago
      I’d do anything to help my hair!

      This product is very easy to use and smells great!

    • U
      Verified Buyer
      I recommend this product
      Rated 5 stars
      23 hours ago
      Nice product!

      Just started using so I can’t say for sure how it will work for regrowth, but it smells great, is easy to apply, and isn’t sticky or oily. Feels really nourishing to my skin and hair.

    • AM
      Amber M.
      Verified Buyer
      I recommend this product
      Rated 4 stars
      23 hours ago
      So far so good...

      I've been using it a very short time but I do feel like it may be working already

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    Hair Boost Serum - Biotin Hair Growth Serum for Thicker-Looking Hair

    Hair Boost Serum - Biotin Hair Growth Serum for Thicker-Looking Hair

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