Free Shipping US Wide On All Orders Over $30

Skip to product information
  • Boldify Hair Thickening Serum Bottle with 8oz or 236ml.
  • Boldify Hair Thickening Serum Bottle next to a happy woman showing thick and healthy-looking hair and message of Revolutionary 3 in 1 Formula
  • Boldify Hair Thickening Serum Bottle next to a happy man showing well-treated and healthy-looking hair.
  • Woman drying her hair next to Hair Thickening Serum Bottle and message of Instantly Thickens and Adds Full, Healthy-Looking Volume
  • Woman showing her healthy-looking hair next to Boldify Hair Thickening Serum Bottle and many stamps of made in the USA, 100% animal cruelty-free, no dangerous chemicals and safe for colored treated hair.
  • Boldify Hair Thickening Serum Bottle with Biotin and Pro Vitamins B5.
  • Senior Woman showing her healthy-looking hair next to Boldify Hair Thickening Serum Bottle and a stamp of satisfaction guarantee.
  • Travel Size Option of Boldify Hair Thickening Serum Bottle with 2oz or 60ml.
  • Boldify Hair Thickening Serum Bottle with 4oz or 118ml.
  • Boldify Hair Thickening Serum Bottle with 8oz or 236ml and packaging box.
1 of 1

Hair Thickening Serum - Thicker Hair From First Application

4.8
Rated 4.8 stars
3,089 Reviews
Sale price

$30.95

Regular price
$39.95

people are viewing this item

Get big, bouncy volume and healthy, glossy shine with the BEST Biotin hair serum for fine and thick hair! Our natural, non-greasy hair nourishment and volumizer complex is packed with Biotin for stronger, longer strands.

This natural hair thickener absorbs into and seals follicles, nourishing from the inside out for instant body and shine. Achieve the perfect blowout, fight hair fall, and banish breakage with Boldify Hair Thickening Serum for women & men!

Tired of hair loss, breakage, or snail-slow growth?
Our hair boost provides vital nutrients for a cleaner scalp & happier follicles, enhancing strand retention & inhibiting breakage. With each use Boldify nourishes, plumps, and strengthens hair, working to reverse existing damage and prevent future damage for thicker, longer, stronger, shinier locks. And with such a light feel and fresh scent, you'll look forward to using it after every wash!

Perfect salon-quality blowouts in just 3 easy steps!

1. Squeeze a dime-sized amount of serum into your palm (more for longer hair), and rub hands together;
2. Apply evenly through clean, towel-dried hair, starting at the ends and working toward roots, avoiding the scalp.
3. Style as usual by allowing hair to air dry for soft, natural fullness, or blow-dry for 3X more volume! Either way, our leave-in conditioner plumps and nourishes strands for a phenomenally full, beautifully silky finish.

Triple-action formula for a light, effortlessly voluminous finish: Unlike other hair retention oils/serums and multi-product hair care treatments, Boldify's Biotin Hair Serum weightlessly acts as 3 products in one - hair boost serum, leave-in conditioner, and plumping volumizer - to give you that "fresh from the salon" blowout look and feel - without damaging buildup and greasy, sticky residues that leave locks limp and lifeless. This perfect Biotin hair oil alternative works for all hair types and is safe for color-treated hair.

Premium results guaranteed: Over 250,000 happy, beautiful customers have already transformed their tresses with Boldify. We're so confident that you'll love our products too that we want you to try them out 100% risk-free!

We guarantee that Boldify Volumizing Hair Serum will promote gorgeous, lustrously shiny, thicker, longer, stronger hair - or we will refund you the purchase price upon request. No questions asked, no return required!
Share
Crafted By Expert Stylists

BOLDIFY 3-in-1 Hair Thickening Serum contains Biotin to enhance strand retention and promote strand strength, minimizing hair loss due to breakage and excess fall.

While most hair serums leave your hair feeling sticky, flat and dull, BOLDIFY supports that “fresh from the salon” Brazilian blowout look, without the tacky feel. Plus, it smells delicious!

Water/Aqua/Eau, Hydroxyethylcellulose, Cocos Nucifera (Coconut) Oil, Panthenol, Biotin, Chamomilla recutita (Matricaria) Flower Extract, Achillea Millefolium Extract, Rosa Canina Fruit Extract, Melissa Officinalis Leaf Extract, Cymbopogon Schoenanthus (Lemongrass) Extract, Quercus Alba Bark Extract, Geranium Maculatum Extract, Symphytum Officinale Extract, Salvia Officinalis (Sage) Leaf Extract, Aloe Barbadensis Leaf Juice, Hamamelis Virginiana (Witch Hazel) Extract, Cetrimonium Chloride, Cetearyl Alcohol, Guar Hydroxypropyltrimonium Chloride, Methyl Gluceth-20, Polysorbate 60, Cinnamidopropyltrimonium Chloride, Amodimethicone, Glycerin, Isolaureth-6, Propylene Glycol, Octoxynol-40, Citric Acid, Fragrance/Parfum, Methylisothiazolinone, Sodium Benzoate, BFL.

PROVEN RESULTS

Step 1

Squeeze a dime-size amount into your palm. (Less is more!)

Step 2

Work through hair with fingers, starting with the ends and working your way to the roots, stopping just short of the scalp.

Step 3

Blow dry on medium/high heat for incredible healthy fullness and all-day body!

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

Biotin

Widely known as the 'Hair Growth Vitamin', Biotin can help thicken hair over time by reducing breakage and fall, and supporting strand retention.

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.

Lemongrass Extract

Essences of lemongrass can help protect hair follicles from oxidative stress, promoting optimal function and healthier-looking locks.

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.

HEAR IT FROM
OUR CUSTOMERS

  • Works great on Fine Thin Hair! I have fine thin hair and this product works perfectly. Not sticky or heavy, just makes my hair appear thicker !

    MARY A. WELLS

    Verified Customer Review

  • Great Product and Fast Shipping: I have an undercut and I have Asian hair which means it is stiff, goes flat and not workable after it drys. This product gave my hair a much needed lift and stays in place after using hairdryer. It is a little sticky like what others have claimed but I like it because it stays the shape I need and with a little clay and hairspray, my hair stays in place and doesn't loose its shape throughout the day.

    CHARLES

    Verified Customer Review

  • Wow Product. I love Boldify products. I'm 80 years old, yes it's a current picture, and my hair if fine. It takes a lot of products to get body and bounce... as far as making my hair full and lasting I love it.

    LOREE L. C.

    Verified Customer Review

  • No blow drying needed... this stuff is amazing! I don't need to blow dry my wavy hair for volume anymore!

    JESS90

    Verified Customer Review

  • I LOVE this! I previously used the Adria volumizing spray until I ran out and found this. Voluminous products are essential to me, because my hair is super thin, and straight. It's been a curse (I don't care what you thick, curly haired girls say, haha!) if you have the same trouble/ this product is for you! My hair is in the best shape of its life!

    KRYSTEN

    Verified Customer Review

4.8
Rated 4.8 stars
Based on 3,089 reviews
Total 5 star reviews: 2.5k Total 4 star reviews: 544 Total 3 star reviews: 4 Total 2 star reviews: 1 Total 1 star reviews: 0
100%would recommend this product
3,089 reviews
  • MG
    M. G.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    18 hours ago
    This stuff is amazing on my long hair.

    I love the volume and feel this gives my long hair. My hair is fine and thin. Using this has definitely help make my hair more manageable and looks much fuller.

    Was this helpful?
  • JM
    Jaqueline M.
    Verified Buyer
    I recommend this product
    Rated 4 stars
    18 hours ago
    Made hair fall out

    Not sure why- but this product dries my hair out, tangled it and I lost significant gobs of hair using this. Not using anymore! UPDATE: while this didn’t work for my hair type, the seller is absolutely responsive and offered a full refund. Great customer service!

    Was this helpful?
  • S
    Stacey
    Verified Buyer
    I recommend this product
    Rated 5 stars
    18 hours ago
    Smells clean

    Just as described

    Was this helpful?
  • AC
    Amazon C.
    Verified Buyer
    I recommend this product
    Rated 5 stars
    18 hours ago
    This thing works..my coworker noticed that my hair looks so thick.

    It has a pleasant snell

    Was this helpful?
  • B
    blm
    Verified Buyer
    I recommend this product
    Rated 5 stars
    1 week ago
    Adds volume and texture

    I've been using this now for about a month now usually applied to wet hair and have noticed that my hair has more texture and a little more volume. It's not a huge difference but it's enough that it's noticeable. I like that it is not sticky and doesn't weigh down the hair. Looks very natural.

    Was this helpful?
Reviews LoadedReviews Added
Hair Thickening Serum - Thicker Hair From First Application

Hair Thickening Serum - Thicker Hair From First Application