Scalp Serum For Hair Growth - Best Serum For Hair Loss - KilgourMD

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Dr. Aurora Yllana-Shepperd, MDFamily medicine

Dr. Kimberly Rogers, MDInternal medicine

Mohs Surgery & Dermatology CenterDermatology

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The Science

The KilgourMD Dual Action System is backed by over 40 published clinical and laboratory studies – making it the most scientifically-validated natural formula on the market.

Clinical Results

The KilgourMD system combines Redensyl®, Capixyl®, and Procapil®—ingredients that have been evaluated in a published, peer-reviewed clinical trial reporting improvements across multiple hair-related outcomes, including physician assessments. In our 2026 trial, the serums were well tolerated, with no adverse effects reported.

How to Use

Start with a clean scalp

Apply to a dry or lightly damp scalp. These formulas are designed to absorb into the scalp, not coat the hair.

One dropper daily

Use one full dropper (about 1 mL) per day. If the dropper fills halfway, use a second to reach 1 mL. Consistency matters most. Apply all at once or split between morning and evening.

Apply, massage, and leave in

Part the hair and apply directly to thinning or shedding areas. Massage gently for 30–60 seconds. Do not rinse. Let it absorb and style as usual.

Stay consistent

Use daily. If you miss a day, simply resume—no need to double up.

View full application guide

Scalp Serum For Hair Growth - Best Serum For Hair Loss - KilgourMD

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DECREASE VISIBLE

HAIR FALL

REVERSE LOST

FULLNESS

PREVENT

PREMATURE SCALP

AGING

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Once-daily leave-on scalp serum designed to help reduce the appearance of thinning and support fuller-looking hair. Subscribe & save 15%.

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The KilgourMD Bundle

Regular price $150.00 USD

Sale price $150.00 USD Regular price

$178.00 USD

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KEY INGREDIENTS

What goes into The Prevention Serum

Capixyl® | strengthen + calm

A scientifically advanced complex that reduces scalp inflammation by 48% while increasing hair density by 79% in just four months. This powerful ingredient combines red clover extract rich in Biochanin A (a natural DHT suppressor) with acetyl tetrapeptide-3, a biomimetic peptide that strengthens hair anchoring at the root. By addressing both scalp inflammation and follicle miniaturization simultaneously, Capixyl® creates an optimal scalp environment where hair can thrive. Clinical studies show it outperforms the leading alternative by 81% while being drug and side-effect free.

Procapil® | nourish + strengthen

A bioengineered complex that improves scalp nutrient delivery by 121% while reducing hair loss by 58%. This trio of active molecules (biotinyl tripeptide-1, apigenin, and oleanolic acid) works synergistically to prevent premature follicle aging and strengthen the hair bulb structure, protecting against free radical damage while supporting cellular metabolism. It also suppresses DHT locally at the follicle without affecting hormone levels elsewhere, making it ideal for menopausal women seeking natural and safe solutions.

Anagain® | reactivate + extend

Derived from organic pea sprouts, this ingredient extends your hair's anagen (growth) phase by up to 78%, meaning each strand grows significantly longer before naturally shedding. By reducing the telogen (resting) phase by 34%, it ensures more follicles stay actively producing hair at any given time. AnaGain™ works alongside specific genes (FGF7 and Noggin) that control hair growth cycles. Scientific studies show it increases hair density through messaging to dermal papilla cells - the "command center" of each follicle responsible for hair production.

RootBioTec® | protect + stimulate

Revolutionary plant stem cell technology from basil hairy roots that reduces hair loss by 31% in just two months. This sustainable ingredient impacts 5α reductase II (the enzyme that creates DHT) while simultaneously locally stimulating dermal papilla cells to keep follicles in their growth phase longer. The patented "hairy root" extraction method preserves the full spectrum of bioactive compounds, including powerful antioxidants that protect follicles from environmental damage and premature aging. Clinical studies confirm it successfully prevents hair loss while promoting fuller, denser hair growth.

L Ascorbic Acid | shield + protect

By mitigating oxidative stress and promoting collagen gene expression, vitamin C combats photoaging and natural scalp aging. Clinical evidence supports its role in increasing dermal collagen, which is essential for maintaining healthy hair follicles. The vitamin C in our formula works synergistically with other antioxidants to protect follicles from free radical damage while supporting the structural integrity of the scalp tissue where follicles are anchored.

KilgourMD Soothing Shield | calm + soothe

Contained within The Prevention, piroctone, bisabolol, panthenol, and zinc combine to soothe the scalp and reduce harmful 'inflammaging'.

VIEW ALL INGREDIENTS

Saw results by week 6

( [clinical trial](/content/pages/kilgourmd-system-clinical-results "https://kilgourmd.com/pages/kilgourmd-system-clinical-results"/index.html) comprised of 43 women ages 30-65)

Fewer hairs shed in Combing Test

(Day 120 vs. baseline)

Showed clinically significant growth

(Day 120, expert assessment)

CLINICAL RESULTS

Real People, Real Results.

see the science

THE PROCESS

How to Grow

We intentionally designed our serums to work perfectly together, as well as with your lifestyle. For optimal results though, here are some tips from us.

STEP 01

Start with a clean scalp

Apply to a dry or lightly damp scalp. These formulas are designed to absorb into the scalp, not coat the hair.

STEP 02

One dropper daily

Use one full dropper (about 1 mL) of each serum per day. If the dropper fills halfway, use a second to reach 1mL. Consistency matters most. Apply all at once or split between morning and evening.

STEP 03

Apply, massage, and leave in

Part the hair and apply directly to thinning or shedding areas. Massage gently for 30-60 seconds. Do not rinse. Let it absorb and style as usual.

STEP 04

Stay consistent

Use daily. If you miss a day, simply resume, no need to double up.

FREQUENTLY ASKED QUESTION

Have a question? We are here to help.

Why subscribe rather than one off purchase?

Hair growth is a gradual process, not an overnight fix. Because hair grows in cycles, it typically takes consistent use over several months to start seeing visible improvements. A subscription ensures you stay consistent without interruptions—so your scalp and hair follicles get the ongoing support they need for the best possible results. It also takes the guesswork out of reordering, so you never miss a day in your routine.

Isn’t it just genetics?

Genetics can play a role in hair thinning, but they’re only part of the picture. Factors like scalp health, stress, hormones, and environmental exposure can also influence how your hair looks and grows over time. With the right routine and consistent care, you can help support a healthier scalp environment and improve the appearance of fuller, stronger-looking hair-regardless of your starting point.

How is KilgourMD different from regular hair growth products? Is it worth it?

KilgourMD stands out from other brands by formulating with clinically studied ingredients like Redensyl®, Capixyl®, and Procapil® at their proven effective dosages and in higher concentrations of active ingredients overall—while many other brands include only trace amounts for label appeal rather than real results.

Does it work for all hair types?

Yes—KilgourMD is designed to support all hair types and textures. Whether your hair is straight, wavy, curly, or coily, the formulas are developed to care for the scalp and support fuller-looking, healthier hair.

Why is liposomal delivery important?

Liposomal delivery helps enhance how ingredients are applied to the scalp. These microscopic, skin-compatible carriers are designed to help ingredients spread more evenly and integrate seamlessly into your scalp care routine.

This means the formula can:

Distribute ingredients more evenly across the scalp
Improve the overall feel and consistency of application
Help optimize the performance of key ingredients

By using advanced delivery technology, KilgourMD ensures each ingredient is delivered in a way that supports a well-cared-for, healthy-looking scalp—without irritation.

How long does one bottle of each serum last?

1 bottle = 1 month of usage.

What is the 90-day guarantee?

We’re confident you’ll love your results. While optimal improvements typically take 3–6 months of consistent use, many people notice early signs around 6 weeks - like reduced shedding, less scalp irritation, and a healthier-feeling scalp.

That’s why we offer a 90-day, no-questions-asked refund, backed by our full refund policy.

Refunds are subject to our [full refund policy](/content/policies/refund-policy "Refund Policy"/index.html).

Is this suitable for platinum blonde or predominantly grey hair?

For very light blonde or predominantly grey hair, the L-ascorbic acid in The Prevention may cause temporary warmth or brassiness at the roots if buildup occurs. This is purely cosmetic and fades after a few washes.

To minimize this, we recommend daily rinsing or using KilgourMD Shampoo to prevent buildup. If that’s not practical, consider using The Treatment Scalp Serum on its own instead of the full bundle.

VIEW ALL FAQS

Dr. Manhong Ma, MD

Verified clinician

Specialty

Dermatology

Years in practice

Supports natural regrowth cycles with consistent care

I like this bundle for patients dealing with hair thinning or slower hair regrowth from stress, aging, or hormonal shifts. These factors can weaken follicles. When the follicles are weak, you are more at risk for losing hair thickness, and even hair loss. Because hair growth cycles last several months, I usually suggest giving a product like KilgourMD at least 3 to 6 months of consistent use. The bundle includes two targeted serums. One of them is designed to protect follicles and help reduce hair loss. Another is formulated with Redensyl and botanicals to support follicles in the growth phase. I suggest daily use and patience to give the system its best chance to show benefits.

†

Highlights:Scalp healthConsistent usePromotes hair-growth

Dr. Manhong Ma, MD

Verified clinician

Specialty

Dermatology

Years in practice

Capixyl may help with hair thinning prevention and protect follicles from shrinking

One of the active ingredients I take most interest in the KilgourMD Bundle is called Capixyl, primarily due to its role in follicle protection. It's to help prevent follicle shrinkage, which can lead to thinner, weaker hairs over time. Early research results are encouraging so far, though larger studies would help fully confirm complete benefits. Capixyl works by slowing the production of DHT, a substance that can cause hair follicles––the structures under your skin that grow each strand of hair—to become smaller and eventually stop producing visible hair. By reducing DHT’s impact, follicles may stay larger and keep growing hair for longer periods of time. It’s a good choice for my patients who are seeking supplementary treatments for hair thinning prevention.

†

Highlights:Growth supportHair densityFollicle protection

†This clinician wants to clarify that larger-scale research to support their product claims is still developing. These statements have not been reviewed by the FDA and are not intended to be medical advice.

TESTIMONIALS

Hear what the people have to say

All reviews

4.65 out of 5

Based on our reviews

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06/23/2026

Christi

United States

BELIEVE

I was a skeptic but I ordered the three months to start, after one month I received an email asking if I’d noticed a reduction in hair loss, I said a discouraged “no”. I had three months so I kept using and began to notice a thickening of my hair and less hair loss. I was so excited that I ordered the shampoo and conditioner too! Now, after, I think, five months, I am a new old lady 🤣. Thick healthy hair! Thank you Kilgour! For all of you out there, this is not an overnight fix! Give it time and allow for small improvements over time. This product is so worth the wait and results !

Review collected from a store visitor

06/04/2026

Angel

It actually works. Use it consistently and it works. The dropper sucks and they need to redesign the bottle but the product works.

Review written in Shop App

04/29/2026

Patricia

Its great need another bottle

Review written in Shop App

04/16/2026

Michelle

United States

Was a skeptic, now a believer

I noticed decreased shedding within a couple weeks. At 3-4 months noticed part seemed thicker. At 8 months I can say definitively I have regrown hair and do not feel self conscious about it any more. I am dealing with both perimenopausal and glp-1 hair loss.

Review collected from a store visitor

04/03/2026

Cathy

Excellent

Review written in Shop App

03/07/2026

Lauren

Arrived quickly, now to see if it performs as advertised!

Review written in Shop App

03/04/2026

Jodie M.

United States

I’m a believer

Not only am I dealing with menopause hair thinning but also have female pattern balding. Have used Kilgore for about six weeks and am absolutely shocked by the results. I see new hair growth, although still short after only six weeks. But it’s growing back, in places I have not seen hair in 15 years - the balding area. I just purchased the shampoo and conditioner to help get all over coverage.

Review collected from a store visitor

10/13/2025

Jenna P.A.

United States

Crisis Averted

I want to start by saying that I have never left a review like this before. I myself am a licensed , board-certified nurse practitioner who was left helpless and not knowing what to do about my own alarming hair loss. Though I am on GLP‘s, I have been on them for years without a problem but I am most definitely menopausal. So probably a combination of both. Nevertheless, I really was feeling desperate about how much hair I was losing. I was afraid to wash my hair. I was afraid to blow dry my hair, afraid to even brush my hair. By the end of each week, I had a pile that could have been donated to a wig company! I started the system about four weeks ago. It took me a little while to figure out the dosing with the droppers and I think I was going through more product than what’s needed. I did have to start a second round at three weeks which is when very abruptly, after faithful use daily, the shedding has stopped and I can just tell even when I’m massaging my scalp that my hair is not shedding anymore. I actually took a shower the other day and shampooed my hair with confidence and am no longer scared at the amount of hair loss and would call it normal for me. Crisis averted! I am so impressed with this product and will recommend it to all of my patients! I will never stop using this product! Thank you, Dr. Kilgour

Review collected from a store visitor

110

03/18/2025

Ryan D.

Lightweight & Easy to Use

Was looking for something to help with my early-stage hair thinning, and this serum is now part of my daily routine. Feels like nothing on my scalp (which is great), and I’ve already noticed less hair in the drain when I shower. No complaints!

Review collected from another provider

03/17/2025

Jessica L.

Finally, A Scalp Serum That Works!

I've tried everything for my thinning hair—biotin, rosemary oil, even minoxidil (which made my scalp so itchy I had to stop). KilgourMD’s Prevention Scalp Serum is the first thing that has actually made a difference without irritation. My hair looks fuller, and I swear my shedding has decreased. Love that it’s fragrance-free too. I’m on my second bottle and will absolutely keep using it!

Review collected from another provider

123

The Prevention Scalp Serum

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