4.89 · 2.3k reviews

The 6-peptide serum for thicker, fuller, healthier hair.

Bloom uses 6 bioactive peptides to rebuild the hair you're losing. Thicker strands, a part that stops widening, hair that feels full again. Most serums fix one thing. Bloom fixes all four reasons hair thins, starting at the scalp.

  • Thicker, fuller hair
  • less visible shedding over time
  • drug-free, no oil, no fragrance
  • targets all layers, starting at scalp
  • every peptide lab-tested
  • drug-free formula
  • compounded in the USA

what brought you here?

just want more of it?

No big problem needed. Most hair products coat the strand; Bloom works at the scalp, where every hair starts, with six peptides in a water base. Two minutes a day.

“…now I have a full head of hair and I keep using it to get it even thicker thank you for your product it really does work”
Sandra Cannonverified buyer

How it works over time

  1. week 2

    “Within a couple of weeks of starting this serum, my shedding came to a screeching halt.”

    Sflanaganverified buyer

  2. month 2

    “I don't shed anymore my hair looks and feels thicker and I'm getting baby hairs all over. Just started my second month!”

    Valverified buyer

  3. 10 weeks

    “I went to the hairdresser and I've had 2 months worth of hair growth”

    Sandra Cannonverified buyer

  4. month 3

    “I was able to grow my eyebrows back in about three months and my hair line has also made a spectacular comeback!”

    Diane Mverified buyer

  5. about a year

    “Last year I was looking for wigs… now I have a full head of hair and I keep using it to get it even thicker”

    Sandra Cannonverified buyer

Give it a real chance: two minutes a day, for 3–6 months.

bloom peptide hair+scalp serum

4.89 (2.3k) 2.3k Reviews

91% success rate*

Clinically backed peptide serum that helps regrow hair, reduce shedding and thicken hair, with six clinical peptides including GHK-Cu and AHK-Cu. Contains 30ml (1oz) of serum.

With ingredients clinically studied to:

  • Reactivate biological pathways associated with healthy hair growth*
  • Improve follicle signaling for stronger, denser-looking hair*
  • Support scalp repair and long-term follicle health*
  • Help maintain thicker, healthier hair through multiple growth mechanisms*
90%Reported stronger, thicker hair*
89%Reported increased hair growth*
91%Reported a healthier scalp*
3-6 moConsistent use for best results
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first payment $240, then $240 every 6 months first payment $348, then $348 every 6 months
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Use 3-6 months consistency to see results

benefits

  • Regrows hair
  • Thickens hair
  • Strengthens roots
  • Nourishes scalp
  • Prevents shedding

returns & subscriptions

key ingredients

how to use

Bloom peptide hair+scalp serum by Fleur: amber glass dropper bottle beside its oxblood carton
Bloom's six clinical peptides in one formula: GHK-Cu stimulates hair growth, AHK-Cu strengthens, PAL-AHK repairs and protects follicles, PTD-DBM reactivates dormant hair, Acetyl Tetrapeptide-3 anchors follicles and GHK Basic supports scalp repair, with the full ingredient list
Woman with full curly hair: Bloom activates dormant follicles at the root for visibly fuller coverage, a balanced, hydrated scalp and less build-up
Bloom peptide hair+scalp serum in rippling amber water, formulated by award-winning chemists: water-based with no oil or build-up, color safe and safe for chemically treated hair
The future of hair science: a glass pipette releasing Bloom's blue serum, made with six clinical peptides to support the scalp where healthy hair begins
Real people, real results: a Bloom customer's dated hair part photos from December 2025 to April 2026 with her five-star review. Individual results may vary.
Trichologist tested, community loved: in a 12-week self-assessment study of 45 people, 90% noticed stronger, thicker hair, 89% new hair growth and 91% less scalp dryness
Dropper applying blue Bloom serum to the scalp along a part, with how-to-use steps: daily on damp or dry hair, apply directly to the scalp, massage with fingertips
  • Bloom peptide hair+scalp serum by Fleur: amber glass dropper bottle beside its oxblood carton
  • Bloom's six clinical peptides in one formula: GHK-Cu stimulates hair growth, AHK-Cu strengthens, PAL-AHK repairs and protects follicles, PTD-DBM reactivates dormant hair, Acetyl Tetrapeptide-3 anchors follicles and GHK Basic supports scalp repair, with the full ingredient list
  • Woman with full curly hair: Bloom activates dormant follicles at the root for visibly fuller coverage, a balanced, hydrated scalp and less build-up
  • Bloom peptide hair+scalp serum in rippling amber water, formulated by award-winning chemists: water-based with no oil or build-up, color safe and safe for chemically treated hair
  • The future of hair science: a glass pipette releasing Bloom's blue serum, made with six clinical peptides to support the scalp where healthy hair begins
  • Real people, real results: a Bloom customer's dated hair part photos from December 2025 to April 2026 with her five-star review. Individual results may vary.
  • Trichologist tested, community loved: in a 12-week self-assessment study of 45 people, 90% noticed stronger, thicker hair, 89% new hair growth and 91% less scalp dryness
  • Dropper applying blue Bloom serum to the scalp along a part, with how-to-use steps: daily on damp or dry hair, apply directly to the scalp, massage with fingertips
Bloom peptide hair+scalp serum by Fleur: amber glass dropper bottle beside its oxblood carton
Bloom's six clinical peptides in one formula: GHK-Cu stimulates hair growth, AHK-Cu strengthens, PAL-AHK repairs and protects follicles, PTD-DBM reactivates dormant hair, Acetyl Tetrapeptide-3 anchors follicles and GHK Basic supports scalp repair, with the full ingredient list
Woman with full curly hair: Bloom activates dormant follicles at the root for visibly fuller coverage, a balanced, hydrated scalp and less build-up
Bloom peptide hair+scalp serum in rippling amber water, formulated by award-winning chemists: water-based with no oil or build-up, color safe and safe for chemically treated hair
The future of hair science: a glass pipette releasing Bloom's blue serum, made with six clinical peptides to support the scalp where healthy hair begins
Real people, real results: a Bloom customer's dated hair part photos from December 2025 to April 2026 with her five-star review. Individual results may vary.
Trichologist tested, community loved: in a 12-week self-assessment study of 45 people, 90% noticed stronger, thicker hair, 89% new hair growth and 91% less scalp dryness
Dropper applying blue Bloom serum to the scalp along a part, with how-to-use steps: daily on damp or dry hair, apply directly to the scalp, massage with fingertips
bloom peptide hair+scalp serum
Bloom's six clinical peptides in one formula: GHK-Cu stimulates hair growth, AHK-Cu strengthens, PAL-AHK repairs and protects follicles, PTD-DBM reactivates dormant hair, Acetyl Tetrapeptide-3 anchors follicles and GHK Basic supports scalp repair, with the full ingredient list
Woman with full curly hair: Bloom activates dormant follicles at the root for visibly fuller coverage, a balanced, hydrated scalp and less build-up
Bloom peptide hair+scalp serum in rippling amber water, formulated by award-winning chemists: water-based with no oil or build-up, color safe and safe for chemically treated hair
The future of hair science: a glass pipette releasing Bloom's blue serum, made with six clinical peptides to support the scalp where healthy hair begins
Real people, real results: a Bloom customer's dated hair part photos from December 2025 to April 2026 with her five-star review. Individual results may vary.
Trichologist tested, community loved: in a 12-week self-assessment study of 45 people, 90% noticed stronger, thicker hair, 89% new hair growth and 91% less scalp dryness
Dropper applying blue Bloom serum to the scalp along a part, with how-to-use steps: daily on damp or dry hair, apply directly to the scalp, massage with fingertips

what happens under your scalp.

Scroll to follow a resting follicle into its growth phase, and where each of Bloom's six peptides comes in.

resting follicle illustration
  1. resting follicle

    a follicle stuck resting.

    Every follicle cycles: grow, rest, shed, repeat. Stress, hormones, menopause and age can keep more of them resting for longer, and the hair they would grow never shows up. This one is resting.

  2. serum arrives

    pal-ahkthe follicle protector

    one drop, straight onto the scalp.

    Bloom is water-based, so it goes on the scalp, not the strand. Pal-AHK carries a fatty-acid tail, a common way to help a peptide stay stable and move into skin. Its job: help protect and repair the follicle.

  3. wake-up signal

    ptd-dbmthe follicle wake-up

    the switch that starts a new cycle.

    Follicles start a new growth cycle through a signaling route called Wnt. A protein called CXXC5 holds that route back. PTD-DBM is built to block CXXC5 so the signal gets through. In mice, it restarted hair growth.

    Lee et al., J Invest Dermatol, 2017

  4. growth signal

    ghk-cuthe growth signal

    the copper peptide your body makes less of.

    At the base of every follicle sit dermal papilla cells, which set how long it grows. GHK-Cu is a copper peptide the body makes less of with age. In lab research it supports those cells and the blood supply around them. It's also why the serum is blue.

    Pickart & Margolina, Int J Mol Sci, 2018

  5. growth phase

    ahk-cuthe root strengthener

    a stronger root.

    The second copper peptide. On human hair follicles in the lab, AHK-Cu helped dermal papilla cells multiply and follicles lengthen.

    Pyo et al., Arch Pharm Res, 2007

  6. anchored

    acetyl tetrapeptide-3the anchor

    a hair that holds on.

    A new hair needs a firm hold. Acetyl Tetrapeptide-3 supports the proteins around the follicle that keep hair anchored in place.

  7. healthy scalp

    ghk basicthe scalp balancer

    and the ground it grows from.

    A copper-free form of GHK, there to keep the scalp around every follicle balanced.

  8. six peptides. one drop. two minutes a day.

    shop bloom

Loved by our community.

in their own words.

Unedited reviews from women using Bloom, including the mixed ones.

Aug 2026

I started taking Retatrutide in January for weight loss. I am 56 post menopause. Even with good protein intake and a healthy diet, by mid February I started to shed hair and had significant shedding through April. I ordered this serum in I think early April after doing some research with finding this product and company had the best reviews online. Within a couple of weeks of starting this serum, my shedding came to a screeching halt. In the box, they have a timeline that tells you when baby hair growth starts, etc. and I have followed right along at that timeline. My hair has significantly improved in the last four months. I have a lot of new hair growth all over my head. It is extremely easy to use. I would recommend this product to anyone. I am 100% satisfied. I recommend this to all my friends who are on any type of peptide for weight loss. I wish I would’ve known about this before. Great effective product! Thank you!

Sflanagan

Jun 2026

Def try this!!

I was previously using an injectable ghk-cu but it would irritate my skin. It wasn't something I wanted to continue long term. I kept seeing ads for fleur so I decided to try it. I'm so glad I did. I don't shed anymore my hair looks and feels thicker and I'm getting baby hairs all over. Just started my second month!

Valverified buyer

Dec 2025

All I can say is it works

Last year I was looking for wigs my hair was horrible from all the medications I take now I have a full head of hair and I keep using it to get it even thicker thank you for your product it really does work

Sandra Cannonverified buyer

Jul 2026

This potion is magical!

I was able to grow my eyebrows back in about three months and my hair line has also made a spectacular comeback! I highly recommend and will continue ordering this fantastic potion.

Diane Mverified buyer

Sep 2026

So Far So Good

I am on my second bottle (bought the three pack bundle). I am starting to see difference in, believe it or not, my grays and baby hairs growing in.

Michele Violanteverified buyer

Dec 2025

Great product, excellent customer service!

I am really happy with the product and appreciate the quality clean ingredients, that it is unscented, and that it doesn’t leave any residue on my scalp after application. I am beyond impressed with the incredible customer service I received after a minor logistics issue, which was promptly resolved and in the friendliest possible way. I felt the accountability and care this company took of me and that alone would have made me a loyal customer- you guys are doing a great job!

K.M.verified buyer

Feb 2025

Works

Have been using this product for two and a half months I went to the hairdresser and I've had 2 months worth of hair growth this product works I've tried so many other products that didn't do anything so if you love your hair and you want your hair back instead of looking like a baby doll with hair missing use this product it's worth the price and to think I was looking at human hair wigs no more just made my second order three containers for the price of two

Sandra Cannonverified buyer

Jul 2026

Mixed opinions

I’ve been using this product for 3 mo now and really haven’t seen any changes in my hair! One thing I’ve noticed as I’ve purchased a few times, the product is different between bottles. I’ve received clear serums and then some are blue. Not consistent, just curious why they differ! They should all be clear or all be blue! Makes me unsure of the product.

Lori Jamiesonverified buyer

fleur replied

Our first version of Bloom (1.0) had lower levels of GHK-Cu and AHK-Cu, the two peptides that make the serum blue, so it only looked blue in volume. Bloom 2.0 carries much more of both, so it reads deep blue in the dropper. 1.0 is fully phased out; every bottle now ships as 2.0.

Feb 2025

3x the love!

Found my forever serum in this product. By far the best stuff out there. Not sticky, oily or fragrance. I use 2x a day. A little here n there goes a long way. Thank you for the quality and makin it affordable

Carla Dumontverified buyer

Dec 2024

Just love Fleur!

What a wonderful product for women with thinning hair! Easy to use and exciting once I saw results! Thanks for making a product that works so well!

Vicki P.verified buyer

Jul 2026

Although I did not stay with this product, I am returning after using another product!

I love that it is very easy to apply to my scalp! Stay committed and be patient!

Esther Parsons-Harrisverified buyer

Jan 2025

easy to apply and doesnt make hair greasy. too soon for results.

lisa palmerverified buyer

bloom peptide hair+scalp serum

30 ml · one-month supply · six peptides

  • Six peptides, including copper peptides GHK-Cu and AHK-Cu
  • Lightweight and water-based, on damp or dry hair
  • Every peptide lab-tested for identity and purity
shop bloom