one serum. three strips.

supports thicker-looking hair

neutral scent

no residue

apply once daily

get your hair back in 12-weeks

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five cosmetic peptides + botanicals

Illustration of a person with long brown hair on a white background

visible window: 6–12 weeks with consistent use

≈ $2.17/day with the 90-day results kit

SAVE YOUR HAIR

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why us?

built to a higher standard

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1,046+ verified reviews

Doctor-owned brand

Gold and black GMP (Good Manufacturing Practice) certified badge on a white background

GMP-certified facility

4.8/5.0 average rating

Bottle of regen hair serum with dropper on a white background

🌱 scalp-friendly extracts

Rosemary and Scutellaria Baicalensis help nourish the scalp surface; soybean and wheat germ extracts contribute to smooth, healthy-looking hair.

🧬 five cosmetic peptides

A biomimetic blend including sh-Polypeptide-1 and sh-Oligopeptide-10, used in cosmetic formulations to support the appearance of thicker, fuller-looking hair.

🌱 scalp-friendly extracts

Rosemary and Scutellaria Baicalensis help nourish the scalp surface; soybean and wheat germ extracts contribute to smooth, healthy-looking hair.

⚡ arginine + saw palmetto

Arginine is an amino acid used in haircare to support the look of strength; Saw Palmetto is widely used in cosmetic products aimed at a fuller appearance.

🧬 five cosmetic peptides

A biomimetic blend including sh-Polypeptide-1 and sh-Oligopeptide-10, used in cosmetic formulations to support the appearance of thicker, fuller-looking hair.

⚡ arginine + saw palmetto

Arginine is an amino acid used in haircare to support the look of strength; Saw Palmetto is widely used in cosmetic products aimed at a fuller appearance.

less ritual. more results.

early feel changes: scalp comfort and styling ease.

Clean finish.

Lightweight texture. Neutral scent.

Built for consistency:

1–2 minutes, once daily.

early feel changes

1 month results

- scalp feels calmer; easier styling

- lighter, cleaner finish, no residue

- some “baby fuzz” along hairline

visible shift begins

2 month results

- part line looks less pronounced

- fuller-looking edges around temples

- reduced day-to-day shedding

fuller-looking appearance

3 month results

- denser crown and part on photos
- hair looks smoother and healthier
- use once-daily for best look

bundle & save

choose your offer

30-day supply

try it

$2.40 per day

less than a cup of coffee to protect your hairline

90-day money-back guarantee

If you don’t love the way your hair looks, we’ll refund you.

savings

upgrade to the 90-day supply to get more savings!

+ 4.95 shipping

add another bottle to get free shipping!

covers full 12-week results window

3 bottles on day one for an uninterrupted 12-week routine

save your hairline

90-day supply

🎉 best value

$2.17 per day

less than a cup of coffee to protect your hairline

90-day money-back guarantee

savings ($21 off)

save $7 per bottle 🤩

free shipping

arrives in 5 days or less

covers full 12-week results window

3 bottles on day one for an uninterrupted 12-week routine.

save your hairline

30-day supply

try it

$72

90-day supply

🎉 best value

$195

was $216

real people, real routines.

Person holding a bottle of regen peptide hair serum in front of a microphone and computer setup.

Man holding a bottle of regen hair serum in an indoor setting

Woman holding a bottle of regen hair product in a home setting

4.8/5 based on 1,046 verified reviews

Mildly skeptical at first. Around week seven I noticed baby hairs along my hairline. Not overnight, but real progress.

M

Maya P.

Verified

Lightweight, not greasy. Feels like skincare for the scalp. My crown looks denser after 3 months.

Daniel K.

Verified

Neutral scent, easy routine. By month two the thinning near my temples looked less obvious.

Aisha R.

Verified

Bought it on a whim. Smells neutral (thank god, no fake perfume) and easy to apply. I actually look forward to massaging it in at night. Hair feels thicker, not like straw anymore.

Josh L

Verified

I’ve tried rosemary oils and DIY stuff for years. This is the first serum that feels ‘clinical’ without being pharma. My scalp feels healthier, less itchy, and my ponytail doesn’t look as thin.”

Sofia M.

Verified

Results weren’t dramatic at first — almost quit. But around the 10-week mark, I saw real density coming back. Glad I stuck with it. Tip: take progress photos, it’s easier to see the change.

Chris D.

Verified

It’s clean, no parabens or silicones. That was huge for me. My hair feels stronger and I’m shedding less in the shower. Subscribed after my first bottle ran out.

Hannah S.

Verified

Not greasy, absorbs fast. I’ve tried The Ordinary before — this feels like the grown-up version. Pricey, but the texture and results are way better.

Jamie K.

Verified

My dermatologist recommended I avoid Minoxidil because of irritation. This serum has been the best alternative. Scalp feels calmer, and I’ve seen noticeable new growth around my part line.

Diane P.

Verified

I don’t usually write reviews, but regen. deserves it. Been using for 3 months, hair feels thicker and fuller. My wife even commented that it looks healthier. That’s all I needed