Search  for anything...

Boldify Leave In Conditioner - Heat Protectant Nourishing Hair Serum for Blow Dry and Styling, Essential Hair Health Serum for Women & Men - Lightweight Thermal Protection to 450F with Biotin

  • Based on 9,352 reviews
Condition: New
Checking for product changes
$21.95 Why this price?
Save $39.90 was $61.85

Buy Now, Pay Later


As low as $5 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Jun 5
Order within 7 hours and 42 minutes
Available payment plans shown during checkout

Features

  • WEIGHTLESS CONDITIONING: BOLDIFY Nourishing Leave-In Serum is designed to deliver serious care without weighing hair down. Infused with powerhouse ingredients like our BOLD Complex, Aloe Vera Leaf Juice and Niacinamide, this BOLDIFY Serum outperforms even the best hair thickening products on the market by serving the cause rather than the symptoms over time, making it the perfect hair thickener for both men and women with fine hair.
  • GET THE LOOK, NIX THE DAMAGE: This BOLDIFY professional hair care product is also a thermal protectant, safeguarding your precious locks from heated styling tools up to 450F so that you can blow dry, straighten and curl your way to a fuller finish without worrying about damage in the long run. It's an essential biotin oil alternative hair serum heat protectant that every hair care routine needs!
  • FEWER TANGLES = STRONGER, LONGER STRANDS: Our Serum is more effective than other detangler spray products, providing the necessary nourishment to banish tangles instantly. Fewer tangles equals less damage and breakage; less damage and breakage means stronger strands over time -- and we all know that stronger hair grows longer! Enriched with Aloe Vera and Biotin, this Serum hydrates better than other biotin hair growth serums that men and women like you have settled for in the past.
  • SOFTER, SMOOTHER, SHINIER FINISH - EFFORTLESSLY: BOLDIFY anti-frizz hair treatment serum offers superior frizz control for those with thinning hair without the oily appearance and greasy finish of other split ends and hair protector treatments. Enjoy a softer, smoother, shinier finish with every bit of the volume your styling routine can acheive!
  • MULTI-PRODUCT FUNCTIONALITY IN ONE BOTTLE: Ditch the multi-product haircare routine for a simplified, single-step Serum. Biotin hair masks, hair shine serums, treatment sprays, detanglers, and thermal protectants are all wonderful and necessary -- but that doesn't mean they have to be separate! Get all the benefits in just one bottle with BOLDIFY Nourishing Leave-In Serum.

Hair Type: Fine


Scent: Light, Refreshing


Liquid Volume: 4.5 Fluid Ounces


Item Form: Cream


Brand: BOLDIFY


Is Discontinued By Manufacturer ‏ : ‎ No


Package Dimensions ‏ : ‎ 5.31 x 1.69 x 1.65 inches; 4.5 ounces


Manufacturer ‏ : ‎ Boldify


Country of Origin ‏ : ‎ USA


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • WOW
I bought this because my hair is falling out and getting thin. This serum is actually working. I have less hair in the shower and sink. This product smells wonderful and makes my hair soft and manageable. You can even style your hair and it works like a gel. I would say I love it but have only used it for about a week or so. I bought this because my hair is falling out and getting thin. This serum is actually working. I have less hair in the shower and sink. This product smells wonderful and makes my hair soft and manageable. You can even style your hair and it works like a gel. I would say I love it but have only used it for about a week or so. ... show more
Reviewed in the United States on June 9, 2021 by Becky

  • Best product for thin, fine hair I have used!
I am so excited about this product! Getting older has enough trials without having to deal with thinning hair and being self conscious about it. I have always had fine hair but the last couple years I have noticed that I am really thinning on top to the point it affects my self image. My Dr. said it was due to my medications, hypothyroidism and simply age. Heredity also is to blame. I have honestly tried every product that promised results but was always disappointed and poorer! I gave this a try after reading the reviews but didn't expect much. Was I wrong! This serum is awesome and lives up to its rep. I am amazed at the change with 1st use. I work just a dime size amount through my towel dried shoulder-length hair concentrating on the top problem area and usually just blow dry. Hair has volume and shine and the difference is very apparent. Doesn't weigh hair down, not sticky or stiff - I am so happy to have found this product line. I use this with their thickening spray (which I am even more impressed with) and I have my confidence back! I haven't tried the shampoo yet but can't wait to try it. I did purchase their hair fiber product per it's reviews but haven't used it yet as it looks like it may have a learning curve to its use. Can't believe I have spent my time on a long review but am so excited about this. Just try it, you won't be disappointed! ... show more
Reviewed in the United States on July 16, 2021 by Roxyt

  • Great product, bad packaginig.
Love the product, but the new square packaging is awkward to dispense shampoo. I really do like the Boldify products and believe they have improved the fullness of my fine thin hair. I just hope the square bottle is not permanent, it is difficult to squeeze out the shampoo.
Reviewed in the United States on January 12, 2024 by Mary L. Stone

  • Not great for fine hair
Hello Amazon world. I have fine hair. Like the real fine hair that NEEDS product every day. I always run into people that say “I have fine hair, just a lot of it” “there’s no product in it” and it’s full and thick??? Okay!? So back to to this product. It’s not fantastic. It gives my hair a little bulk but nothing amazing. I can get away with just using this product but my hair is weighed down, flat, lifeless. So I should give it one star! Maybe it made my ends a little softer because they were a bit rough before. So that’s a plus? I guess if it weren’t so expensive I would consider keeping it just for the tips of my hair to keep stronger (but that’s probably all in my head) and continue my regular root boost volume and hair spray. If you’re looking for volume and have fine hair, don’t waste your money. If you have damaged hair you might want to give it a try. It’s a lot of money for a small container. ... show more
Reviewed in the United States on September 9, 2020 by Jean

  • Actually helped reduce hair loss, increased hair growth, and thickens your hair!
I have used several products over the years for my fine thin hair. In my early thirties I began to experience significant hair loss that took years to recover from. I have been using the Boldify product line for about six months now and have seen significant hair growth, a major reduction in hair loss during brushing and washing, and I immediately saw the difference in body, shine and softness when styling. The scent of the product is nice, where some hair growth products either have no scent or are not pleasant at all. The product is also concentrated so a little goes a long way. I am still using my first bottles that I bought in July. I do mix the shampoo and conditioner with my regular body building shampoo and conditioner as well, since this product is a bit pricey it helps to stretch the use. The serum has worked wonders on the health of my hair and has helped in growing out a very short pixie cut quickly. My hair is softer, shinier and stronger. I highly recommend this product and will continue to use it as it has done wonders and has not let me down! ... show more
Reviewed in the United States on February 8, 2020 by SHONDA

  • Amazing really- and I was skeptical at first.
Ok- so I have bought other products in this line, and really liked them for the most part overall. They are great at imparting volume. But this stuff really is incredible- I think it is the best one of all their products. It not only imparts volume, but it makes the hair shaft smoother, and I would believe that with prolonged use it will decrease breakage. It also smells really good. I now use this stuff every morning. I have curly hair, so I put a dab on my hands, and run it from scalp/roots to ends. It restores curl, decreases frizziness (possibly by coating the hair shaft?), and adds volume...and smells great. This is now an everyday product, and it appears to be the only product that I need. I am going to order more as soon as I start to run low. This may be the only product that you need. I will admit that I was skeptical at first. There are a lot of these serum products on the market. But after using this I cannot imaging NOT using it. I will be curious to see if it make a significant difference in the long run with increasing growth and decreasing breakage. But it has been so good for me that even if it didn't, I would still buy it for the immediate effects, and improved overall hair condition and appearance. Great product. ... show more
Reviewed in the United States on December 16, 2018 by Otto1297

Can't find a product?

Find it on Amazon first, then paste the link below.