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Hair Regrowth Takes Time.


Here's Exactly How Long.

95%

Saw Results by Week 6

60.3%

Reduction in shedding at 4 months

53%

Showed clinically significant growth

Kilgour MD clinical study visual

We Designed This Protocol
 For Results That Last.

Even when you can't see it yet. Your active ingredients are blocking DHT, reducing inflammation, and extending the growth phase of each follicle. The work is happening beneath the surface.

Consistency is the protocol.

The results in the clinical trial — 60% reduction in shedding, 53% showing clinically significant regrowth — were achieved by participants who completed the full program. Not a shortened version of it.

Progress is already underway.

Hair regrowth follows a biological cycle that takes time to reset. The clinical trial ran 4 months — because that's how long it takes for the scalp to respond meaningfully. Week 6 is where most people first notice the difference.

Why Consistency Is Everything

Hair regrowth takes time. Here's what's happening beneath the surface and why staying on your subscription matters.

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Drag slider to see timeline info

LAYING THE FOUNDATION

Scalp Protection Begins

DAY 1
DAY 1
DAY 14
DAY 14

LAYING THE FOUNDATION

Scalp Protection Begins

Active ingredients reach the follicles and begin blocking DHT, calming inflammation, and increasing blood flow.

100%

caffeine absorption in minutes

48%

inflammation reduction begins

121%

blood flow improvement starts

*Individual results may vary based on factors including age, hair type, and consistency of use. Data reflects outcomes from clinical trials and customer surveys.

See Clinical Evidence →
The KilgourMD Bundle
Text panel saying 'Developed by Dr. James Kilgour, a Stanford-trained dermatologist' and his quote about creating KilgourMD
Front view of The Treatment Scalp Serum 2-Pack showing a black bottle held by a hand and a white bottle on a light blue tiled surface, overlay text We're confident you'll love your results
Illustration showing plant-based ingredients in KilgourMD Treatment and Prevention Scalp Serums, titled Pure Plant-based Ingredients
Banner '12 Botanicals at Full Clinical Study Strength' listing 0 side effects, 0 scalp burning, 0 parabens, two serum droppers
Top-down scalp photos comparing Day 0 and Day 120 showing increased hair density at the crown with overlaid labels Day 0 and Day 120
Side-by-side comparison of hair growth over 120 days with 'Day 0' on the left and 'Day 120' on the right.
Instructional graphic showing 'How to Use': Step 1 fill dropper (press button, release to draw serum); Step 2 apply and massage onto scalp
Clinical trial results for hair growth product with percentages of improved results by Week 6, fewer hairs shed, and clinically significant growth.
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
  1. Start with a clean scalp
    Apply to a dry or lightly damp scalp.
  2. One dropper daily
    Use one full dropper (about 1 mL) per day. Consistency matters most.
  3. 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.
  4. Stay consistent
    Use daily. If you miss a day, simply resume—no need to double up.

View full application guide

PREVENTION + TREATMENT SERUMS

Shop the Best-Selling System

Our dual-action system combines two serums:

Prevention shields your follicles from shedding, while Treatment activates thicker, fuller growth. Together, they target all three causes of thinning — hormonal, environmental, and age-related.

MOST POPULAR — SAVE 38%

We recommend 4–6 months of consistent use to see full results.

Packed today, September 24 if ordered within 17m 14s

  • Secure checkout
  • Free shipping
  • 90-day guarantee

Recommended by more than 1,000 US clinicians.

+ 1,000 more US clinicians in
the KilgourMD network

Person smiling in a white lab coat, headshot on a pale blue circular background

"KilgourMD is my first-line scalp protocol for patients with hormonal hair loss."

Dr. Manhong Ma, MD

Board-Certified Dermatologist

Omni McClure, MD smiling in a white coat against a soft blue circular background

"A natural, easy way to support healthier, thicker hair without harsh chemicals."

Omni McClure, MD

Board-Certified Dermatologist

Smiling woman dermatologist in a white lab coat against a light blue circular background

"The skincare-led approach is exactly what this field has been missing."

Donna Yanusz MD

Board-Certified Dermatologist

+ 1,000 more US clinicians in
the KilgourMD network

90-Day Money-Back Guarantee

No before/after photos. No return shipping. No questions asked. Full refund if you don't see measurable improvement after 90 days.

LEARNING HUB

Get Answers About Hair Thinning

Get expert guidance from a board-certified dermatologist on causes, treatments, and science-backed solutions.

Go to Learning Hub
New icon
Formulated by a board-certified dermatologist
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Backed by 1000+ clinicians
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Visible results as soon as 90 days
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Natural alternative without harmful side effects
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Clinically proven by independent research
New icon
Formulated by a board-certified dermatologist
New icon
Backed by 1000+ clinicians
New icon
Visible results as soon as 90 days
New icon
Natural alternative without harmful side effects
New icon
Clinically proven by independent research
New icon
Formulated by a board-certified dermatologist
New icon
Backed by 1000+ clinicians
New icon
Visible results as soon as 90 days
New icon
Natural alternative without harmful side effects
New icon
Clinically proven by independent research