Support your follicles at the scalp, where every hair starts.
30-day returns on your first order · free US shipping on subscriptions
Every morning, and you started counting.
A little more scalp than before.
Drug-free: no minoxidil, no finasteride.
Nothing to stop or switch.
Once a day, on the scalp.
Ask your doctor first.
week 2
“Within a couple of weeks of starting this serum, my shedding came to a screeching halt.”
Sflanaganverified buyer
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
10 weeks
“I went to the hairdresser and I've had 2 months worth of hair growth”
Sandra Cannonverified buyer
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
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.
With ingredients clinically studied to:
Shedding picks up when many follicles rest at the same time.
99.0%
purity on its certificate of analysis
batch ZJ20260508 · tested may 24, 2026
Acetyl Tetrapeptide-3
the anchor
Shedding is a hair losing its hold at the root. Acetyl Tetrapeptide-3 supports the proteins that keep it anchored.
99.96%
purity on its certificate of analysis
batch Z099260602Z · tested jun 17, 2026
GHK-Cu (Copper Tripeptide-1)
the growth signal
Shedding picks up when many follicles leave their growth phase at the same time. GHK-Cu signals the growth phase, and in lab research supports the cells that set how long a follicle grows.
98.9%
purity on its certificate of analysis
batch JT260327-04 · made mar 27, 2026
PTD-DBM (Protein Transduction Domain-Fused Dishevelled Binding Motif)
the follicle wake-up
A follicle that has shed rests before it grows again. PTD-DBM is built to help a resting follicle start a new growth cycle. In mice, it restarted hair growth.
99.1%
purity on its certificate of analysis
batch JT20260110 · tested jan 29, 2026
AHK-Cu (L-Alanyl-L-Histidyl-L-Lysine Copper)
the root strengthener
A stronger root holds a stronger strand. AHK-Cu, the second copper peptide, helped follicles grow longer in lab research on human hair follicles.
98.5%
purity on its certificate of analysis
batch ZJ20260409 · tested apr 20, 2026
Pal-AHK (Palmitoyl Tripeptide-1)
the follicle protector
A follicle going through a shedding phase needs protecting. Pal-AHK helps protect and repair it, and its fatty tail helps it move into skin.
99.6%
purity on its certificate of analysis
batch JT20260502 · tested may 15, 2026
GHK Basic (Tripeptide-1)
the scalp balancer
Every follicle grows out of the scalp around it. GHK Basic, a copper-free GHK, keeps that scalp balanced.
Scroll to follow a resting follicle into its growth phase, and where each of Bloom's six peptides comes in.
resting follicle
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.
serum arrives
pal-ahkthe follicle protector
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.
wake-up signal
ptd-dbmthe follicle wake-up
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.
growth signal
ghk-cuthe growth signal
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.
growth phase
ahk-cuthe root strengthener
The second copper peptide. On human hair follicles in the lab, AHK-Cu helped dermal papilla cells multiply and follicles lengthen.
anchored
acetyl tetrapeptide-3the anchor
A new hair needs a firm hold. Acetyl Tetrapeptide-3 supports the proteins around the follicle that keep hair anchored in place.
healthy scalp
ghk basicthe scalp balancer
A copper-free form of GHK, there to keep the scalp around every follicle balanced.
six peptides, $300+ bought separately. one drop a day.
shop bloomUnedited reviews from women using Bloom, including the mixed ones.
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
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
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
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
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
I love that it is very easy to apply to my scalp! Stay committed and be patient!
Esther Parsons-Harrisverified buyer
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
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.
Bloom is drug-free: no minoxidil, no finasteride. If you take any medication, ask your doctor before adding something new.
GHK-Cu, AHK-Cu, GHK Basic, Pal-AHK, Acetyl Tetrapeptide-3 and PTD-DBM, in a base of water, butylene glycol, propanediol, glycerin, pentylene glycol, hydroxyethylcellulose, phenoxyethanol and ethylhexylglycerin.
Once a day, morning or night. Shake, part your hair, apply along the parts and thinner areas, then massage in with your fingertips. About two minutes. Don't rinse.
Patch test first if your scalp is sensitive.
No. Bloom is water-based: lightweight, non-greasy and it leaves no build-up. It goes on damp or dry hair and you don't rinse it out.
Hair grows slowly, so we recommend 3–6 months of consistent daily use. Judge it by month three, not week three.
Your first order comes with 30-day returns. Subscriptions ship free and you can pause or cancel anytime from your account.
