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

Rated 4.7 out of 5 stars
292 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.

    Water (Aqua), Butylene Glycol, Polysorbate 20, Glycerin, Propanediol, Acetyl Tetrapeptide-3, Apigenin, Arctium Majus Root Extract, Argania Spinosa Kernel Oil, Arginine, Bambusa Vulgaris Extract, Biotinoyl Tripeptide-1, Caffeine, Camellia Sinensis Leaf Extract, Capsicum Frutescens Fruit Extract, Caryodendron Orinocense Seed Oil, Chlorphenesin, Citrus Limon (Lemon) Peel Extract, Cocos Nucifera (Coconut) Oil, Cucurbita Pepo (Pumpkin) Seed Oil, Curcuma Longa (Turmeric) Root Extract, Dextran, Disodium EDTA, Equisetum Arvense Extract, Glycine Soja (Soybean) Germ Extract, Glycine, Helianthus Annuus (Sunflower) Seed Oil, Hydrolyzed Collagen, Hydrolyzed Silk, Keratin, Keratin Amino Acids, Lactic Acid, Larix Europaea Wood Extract, Linum Usitatissimum (Linseed) Seed Oil, Malva Sylvestris (Mallow) Flower Extract, Melaleuca Alternifolia (Tea Tree) Leaf Oil Menthoxypropanediol, Mentha Piperita (Peppermint) Oil, Oleanolic Acid, Panax Ginseng Root Extract, Panthenol, PEG-40 Hydrogenated Castor Oil, PEG-60 Almond Glycerides, Persea Gratissima (Avocado) Fruit Extract Polysilicone-15, PPG-26 Buteth-26, Prunus Amygdalus Dulcis (Sweet Almond) Oil, Ricinus Communis (Castor) Seed Oil, Rosmarinus Officinalis (Rosemary) Leaf Oil, Saccharomyces/Copper Ferment, Saccharomyces/ Iron Ferment, Saccharomyces/ Zinc Ferment, Salix Alba (Willow) Bark Extract, Scutellaria Baicalensis Root Extract, Serenoa Serrulata Fruit Extract, Simmondsia Chinensis (Jojoba) Seed Oil, Sodium PCA, Sodium Metabisulfite, Spirulina Maxima Extract, Trifolium Pratense (Clover) Flower Extract, Triticum Vulgare (Wheat) Germ Extract, Vinegar, Withania Somnifera Root Extract, Xanthan Gum, Zinc Chloride, Zingiber Officinale (Ginger) Root Extract Ethylhexylglycerin, Phenoxyethanol, Moringa Pterygosperma Seed Extract, Urtica Dioica (Nettle) Leaf Extract, Prunus Africana Bark Extract, Hippophae Rhamnoides Extract, Fucus Vesiculosus Extract, Butyrospermum Parkii (Shea) Butter Extract, Wasabia Japonica Root Extract, Beta-Sitosterol, Silica, Retinyl Palmitate, Pantothenic Acid, Leuconostoc/Radish Root Ferment Filtrate, Resveratrol, Dimethyl Sulfone, Retinyl Palmitate, Pantothenic Acid, Pyridoxine, Biotin, Cyanocobalamin, Ascorbyl Palmitate, Tocopheryl Acetate, Phenylbenzimidazole Sulfonic Acid, Azelaic Acid, Folic Acid, Malic Acid, Glycolic Acid, Citric Acid.


    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 products 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 out of 5 stars
    Based on 292 reviews
    Total 5 star reviews: 207 Total 4 star reviews: 85 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
    100%would recommend this product
    292 reviews
    • SG
      Sandra G.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      22 hours ago
      When I first tried the product I didn’t have high hopes, however.

      I do not know if this product will make my hair grow but the shine and the softness without feeling greasy is worth the money. My hair is extremely dry and damaged due to chemical processing and hot tools and this product make my hair look healthy, full, shiny and full of body. I recommend it for hydration. Let’s hope it also works for breakage.

    • T
      Verified Buyer
      I recommend this product
      Rated 4 out of 5 stars
      22 hours ago
      doesn’t make my hair greasy

      Liked it didn’t make my hair greasy

    • L
      Verified Buyer
      I recommend this product
      Rated 4 out of 5 stars
      22 hours ago
      Light Scent, Easy to Apply

      I may give 5 stars later and a proper review after using product for a longer period. So far I like it.

    • AW
      Ashley W.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      22 hours ago
      Great ingredients

      The ingredient list has only high quality ingredients, I’m so excited to see the change in my hair!

    • SA
      Samuel A. S.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      22 hours ago
      Works Great

      Feels great on hair...Doesn't look or feel oily...Love it !!!

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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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