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4.4
Rated 4.4 out of 5 stars
4.4 out of 5 Stars (162 Reviews)

Targeted Renewal for the Scalp and Hair

HAIR Serum

Thicker-, stronger-, fuller-looking hair begins at the scalp. With 2+ trillion platelet-derived exosomes in every bottle, HAIR Serum delivers breakthrough renewal exactly where your hair needs it most.

Clinically proven to:

  • Increase the appearance of hair thickness, fullness, and strength
  • Improve the look of hair density and scalp coverage
  • Hydrate the scalp for the appearance of greater volume and shine
  • Fight the look of shedding and breakage

Subscribe & Save: renews automatically at the frequency you choose, at the then-current price less your discount. No commitment — cancel or change anytime through your account. Subscription terms

Size

30mL / 1 fl oz

Ingredients

Platelet-Derived Exosomes

Nanosized vesicles that unlock the scalp's innate ability to renew for thicker-, fuller-looking hair.

Curcuma Longa (Turmeric) Root Extract

Delivers anti-inflammatory and antioxidant properties for a healthier-looking scalp.

Biotin

Helps support follicle structure for stronger-looking hair.

All Ingredients

water, pentylene glycol, propanediol, glycerin, human platelet extract, panthenol, trideceth-9, polyacrylate crosspolymer-6, PEG-5 isononanoate, biotin, carnosine, chondrus crispus extract, arginine, 1,2-hexanediol, caprylyl glycol, silanetriol, hydrolyzed gelatin, hyaluronic acid, curcuma longa (turmeric) root extract, phytic acid, lindera strychnifolia root extract, palmitoyl tetrapeptide-20 amide, saccharide isomerate, citric acid, sodium citrate

Instructions

Apply once daily to clean hair. Hair can be dry or slightly damp. Apply 1/2 dropper directly to the scalp in areas of concern. Gently massage the serum in and allow it to absorb. Wait 5 minutes before applying other products or heat styling.

 

Watch How to Apply HAIR Serum


The dropper autofills when you twist to remove the cap. When the bottle is full, the dropper may overfill. Don't worry. Use half the dropper to keep your application consistent.

Awards

Shape Skin Award (Best Hair Growth Serum) 2026

Glamour Beauty & Wellness Award 2024

Robb Report Grooming Awards 2024

( plated ) HAIR Serum bottle with 2026 SHAPE Beauty Award and 2024 Glamour Beauty & Wellness Award badges
HAIR Serum Sale price $379.00

Science-Backed Benefits

Visibly Fuller, Denser, and Healthier-Looking Hair

In a double-blind, placebo-controlled clinical study, with a lightweight, invisible-dry formula designed for effortless daily use.

  • 96% reported improved appearance of volume and fullness
  • 100% of participants showed improvement in scalp coverage appearance
  • 3x improvement in the appearance of hair density
  • 0 side effects or downtime
Serum dripping on a bronze ( plated ) HAIR Science bottle

Targeted Support

Get to the Root of Thin Looking Hair

You’re not alone. Nearly 50% of people experience thinning hair, driven by everything from hormonal changes to stress and aging.

Platelet-derived exosomes offer a breakthrough approach, delivering continuous renewal for all genders, ages, and hair types. One solution. 2+ trillion exosomes. Fuller-looking hair.

Designed to visibly improve 10 key hair health indicators, the lightweight, invisible-dry formula makes daily use effortless.

Exosomes in Action

Visibly Transformative Results

Improved Appearance of Scalp Coverage

Before

Before

At 9 Months

At 9 Months

Hair Looks Fuller & More Voluminous

Before

Before

At 9 Months

At 9 Months

Visibly Denser-Looking Hair

Before

Before

At 9 Months

At 9 Months

Where Biotech Meets Beauty™

Discover the Power of Exosomes

Meet the most innovative topical ingredient in decades. Platelet-derived exosomes don’t mask the signs of aging; they reprogram the appearance of skin and hair. 

See What They're saying

Customer Reviews

4.4
Rated 4.4 out of 5 stars
Based on 162 reviews
Slide 1 selected
162 reviews
  • Vivien T.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10/16/26
    Awesome

    Of all the serums, this has worked the best!

  • Robert K. S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10/14/26
    Love the product

    Enjoying the product!

  • Joann S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10/14/26
    Best product for me

    I started loosing more hair on my crown during menopause. I hadn't been back to a dermatologist for 10+ years. I went again September 2026 and my new dermatologist said I had baby fine hairs coming in! It has definitely taken awhile but this product is the only one that we are seeing results. Thank you.

  • Christopher S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10/12/26
    Amazin product noticable cahnge for the better

    Amazin product noticable cahnge for the better

  • susan p.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    10/11/26
    This Works!

    Pricey but effective.

  • Sidhartha M.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10/8/26
    Killer hair growth

    I’ve been losing hair aggressively since I turned 35, plated slowed it down significantly. Almost 36 now, It looks and feels like how it was just before the shedding started.

  • Catherine L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    10/3/26
    Bought for my husband - seems to be working!

    My son even told him his hair looked better! Seems to be not as thin and growing back!

  • Mehrnaz K.
    Verified Buyer
    I do not recommend this product
    Rated 1 out of 5 stars
    9/28/26
    waste

    waste of money

    hair shedding much more

    I really want to return it

  • Stephanie M.
    Verified Buyer
    I do not recommend this product
    Rated 2 out of 5 stars
    9/27/26
    Haven’t used long

    Haven’t used long enough to tell a difference, especially for the price. I will continue to try it though

  • Veronica W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    9/27/26
    Amazing product

    The dropper can be a little tricky along the hairline, but other than that, this product is fantastic. I feel like I started seeing results pretty quickly for my post menopause hair loss.

HAIR Serum

Frequently Asked Questions

What is ( plated ) HAIR Serum and how does it work?

HAIR Serum is a groundbreaking scientific achievement in hair and scalp science. Developed by Mayo Clinic physician-scientists and based on 20+ years of research, HAIR Serum is a breakthrough for at-home hair renewal.

HAIR Serum uses powerful platelet-derived exosome technology, fortified with antioxidants, phosphoproteins, and a proprietary blend of nurturing ingredients, to help improve the appearance of hair density, thickness, volume, and strength.

Who was ( plated ) HAIR Serum formulated for?

HAIR Serum is ideal for individuals experiencing hair-related concerns such as thinning hair, shedding, or lack of volume or density, as it helps improve the appearance of these issues. It's appropriate and effective for all genders, ages, and hair types.

How do ( plated ) platelet-derived exosomes support the scalp?

HAIR Serum harnesses the power of platelet-derived exosomes in a shelf-stable formula to regenerate the hair's look. Our exosomes come directly from platelets, the body's first responders for hair renewal.

Studies show that the platelet-derived exosomes in HAIR Serum can aid in helping the body set the stage for strong, healthy-looking hair. Our proprietary formula has been shown to improve the appearance of scalp coverage while increasing the look of volume, fullness, density, and thickness.

What is the key ingredient and mechanism of action in ( plated )?

The hero ingredient in HAIR Serum is platelet-derived exosomes, which deliver potent renewal technology to support the scalp and visibly improve hair density, volume, and thickness while improving the appearance of scalp coverage. Other science-backed ingredients, including biotin, sea moss, hyaluronic acid, and turmeric, fortify HAIR Serum.

Are there any clinical studies supporting the efficacy of ( plated ) HAIR Serum?

Yes. In a double-blind, placebo-controlled clinical study of HAIR Serum, participants experienced remarkable results:

  • 100% of participants showed improvement in scalp coverage appearance
  • 96% reported improved appearance of volume and fullness
  • 3x improvement in the appearance of hair density
  • Visual improvement across 10 key hair health indicators
  • No side effects or downtime

How long does it take for exosomes to help renew hair? How quickly will I see results?

The platelet-derived exosomes in HAIR Serum get to work immediately on the scalp, but when it comes to hair, patience is key. Here's what you can expect:

  • 1–3 months: Exosome technology goes to work, reprogramming the look of the scalp and hair.
  • 4–6 months: The appearance of scalp coverage improves, and patchiness decreases.
  • 6+ months: Enjoy the look of your new fuller, thicker, healthier hair.

With regular use, the HAIR Serum helps maintain its benefits, making hair appear fuller, stronger, and thicker.

After I see results, should I continue to use ( plated ) HAIR Serum?

Yes, continued use of the HAIR Serum is recommended to maintain your hair's appearance. Regular application can help sustain the benefits and improvements over the long term.

Because platelet-derived exosomes support continuous renewal at the scalp, the longer you use HAIR Serum, the greater the benefits. In clinical studies, participants continued to see improvements in the appearance of thickness, volume, fullness, strength, and scalp coverage with continued use.

What are the ingredients in ( plated ) HAIR Serum, and how do they benefit my hair?

HAIR Serum is formulated by combining platelet-derived exosomes with an innovative blend of science-backed ingredients designed to boost the appearance of the hair's density, thickness, volume, and overall appearance. Check out the detailed ingredient list here:

  • Platelet-derived exosomes are nanosized vesicles that unlock the scalp's innate ability to renew for thicker, fuller hair.
  • Our innovative antioxidant blend helps reduce the appearance of hair and scalp damage due to emotional stress, sun exposure, and environmental pollutants.
  • Biotin inspires stronger-looking hair.
  • Hyaluronic acid conditions and hydrates your scalp.
  • Turmeric provides skin-calming properties.
  • Lindera strychnifolia root extract primes the skin on your scalp.

Is ( plated ) HAIR serum suitable for all hair types?

Yes, HAIR Serum is formulated to benefit all hair types. In fact, in clinical studies, 100% of patients of different ages and genders reported an improvement in the appearance of scalp coverage.

Why is ( plated ) better than other hair products on the market?

HAIR Serum is the first and only at-home cosmetic treatment to use the breakthrough power of platelet-derived exosomes. HAIR Serum is different in a few important ways:

  • Inclusive skincare for everyone: In clinical studies, HAIR Serum improved the appearance of scalp coverage for 100 percent of people across all ages, genders, and hair types.
  • Zero side effects: Participants in our clinical studies reported no adverse events. That's a stark contrast to other treatments that can have serious side effects for men and women.
  • Continuous exosome renewal: Platelet-derived exosomes work continuously to renew the hair and improve the appearance of density for fuller, thicker-looking strands.
  • The invisible-dry formula leaves no detectable residue, so you can style and go without heavy oils or foams weighing down your hair.