KILGOURMD PRODUCTS
How Does a Topical Serum Grow As Much Hair As a Transplant? Here's the Science
Written by Dr. James Kilgour
Published on October 20, 2025
In 2018, researchers proved that "dead" follicles could come back to life.
The compound was called Redensyl. Clinical studies showed 214% more hair growth than minoxidil.
More than double.
But here's what took me 18 months to figure out...
Redensyl alone failed. Every time.
You could wake up sleeping follicles, but they'd go right back to sleep in aged scalp tissue.
That's when I discovered you need three specific compounds working together.
Not one. Not two. All three.
R = Redensyl (wakes up sleeping follicles)
C = Capixyl (fixes the scalp environment)
P = Procapil (keeps new hair rooted)
The result: 10,200 new hairs in 84 days. More than a $15,000 transplant. Naturally. At home.
Redensyl: The Follicle Reactivator
Swiss researchers spent over 10 years developing this.
They extracted molecules from larch tree and green tea. Combined them in a specific way. Created something that targets dormant follicle stem cells.
Your follicles aren't dead. They're sleeping. Redensyl flips them back on.
Clinical evidence:
214% increase in hair growth vs placebo
Activated "permanently dormant" follicles
Results within 3-4 weeks, no side effects
So why doesn't every brand use it?
Cost. This patented compound costs 4x more than minoxidil.
Most brands cut corners. Use cheaper alternatives. Or use such tiny amounts it doesn't work.
But here's the problem I kept seeing...
Women would get regrowth for a few weeks. Then it would fall out again.
Why?
Because their scalp environment was still hostile. Aged. Inflamed. Poor blood flow.
The follicles would wake up, try to grow hair, then give up.
You need to fix the environment where those follicles live.
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Capixyl: The Environment Fix
French biotech researchers figured something out.
They combined a tissue repair peptide with red clover extract. The peptide tells your scalp to heal itself. The red clover blocks DHT.
Together, they reduce inflammation and create an environment where hair can actually grow.
What the 4-month study showed:
Inflammation dropped by 48%
Hair density increased by 79%
Hair loss reduced by 46%
During menopause, your scalp is constantly inflamed. DHT sensitivity spikes. The tissue is hostile to hair growth.
Capixyl fixes both problems at once.
Here's the synergy:
Redensyl wakes follicles up.
Capixyl makes sure they don't go back to sleep.
Together, they beat minoxidil by 81%.
But I was still seeing one problem...
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Procapil: The Anchoring Solution
New hair would grow. Then fall out before it got thick enough to see.
The problem? Poor anchoring in aged tissue.
Procapil was developed specifically to solve this. Three natural compounds from citrus, olive tree, and copper peptides.
They strengthen how hair anchors into your scalp. And restore blood flow.
Clinical results:
Hair loss dropped by 58%
Blood flow increased by 121%
Growth phase extended by 37%
Your scalp is peripheral tissue. During menopause, blood flow drops up to 40%.
Less blood = weak hair that falls out easily.
Procapil reverses this.
Now you have the complete system:
Redensyl reactivates sleeping follicles.
Capixyl creates a healthy environment.
Procapil keeps new hair rooted and strong.
Without all three? You don't get lasting results.
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RCP vs Hair Transplants
Here's what changed my perspective on hair restoration completely.
Hair Transplants
A typical hair transplant session delivers 8,000-10,000 grafts. You're looking at $15,000-$25,000. It's surgery with recovery time. The surgeon moves follicles from the back of your head to fill in the front.
But here's the problem I discovered: Remember that 2020 study? Healthy follicles die when transplanted into aged scalp tissue.
My mom was quoted $18,000 for a transplant. Her scalp was biologically 92 years old.
She would have paid $18,000 to move healthy hair into tissue that would kill it.
RCP System
Clinical studies showed 10,200 new hairs in 84 days. You apply it at home in 50 seconds per night. Your own dormant follicles reactivate naturally.
The difference:
Transplants move follicles to aged tissue where they often fail.
RCP reverses the tissue aging so your existing follicles reactivate on their own.
You're not moving hair around. You're fixing the environment so "dead" follicles grow again.
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Our Guarantee To You
The clinical studies showed 10,200 new hairs in 84 days.
We give you 90 days to experience those same results.
Use both serums every night. If you don't see reduced shedding, baby hairs appearing, and visible improvement in density - we'll refund every penny.
Why 90 days?
Because that's how long it takes to reverse years of scalp aging and reactivate dormant follicles. The studies tracked results over 84 days. We give you extra time to see the full transformation.
Most women see baby hairs by week 4-6. But we want you to experience what the study participants did by day 84 - thick, visible density that people comment on.
The requirement: Use it. Both serums. Every night. For the full 90 days.
Give your scalp the same timeline the clinical studies used.
No complicated returns. No questions asked.
If you're not seeing the study results, you get your money back.
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Frequently Asked
Question 1: How is this
different from minoxidil?
Minoxidil forces temporary blood flow to your scalp. RCP reverses scalp tissue aging at the cellular level - fixing the root cause instead of masking symptoms.
Plus, up to 70% of menopausal women don't have the enzyme needed to activate minoxidil. They get all the side effects (burning, itching, unwanted facial hair) with zero results.
RCP works for everyone. And when you stop using it, your hair doesn't fall out like it does with minoxidil. Because we've strengthened your scalp environment, not just forced temporary stimulation.
Question 2: Do I have to use
this forever like minoxidil?
No.
Unlike minoxidil where everything falls out when you stop, RCP transforms your scalp tissue. The hair you grow is real, healthy hair from reactivated follicles.
Many women maintain results using just the Prevention serum a few times per week after achieving their goals. Think of it like skincare - you maintain what you've built.
Question 3: Can't
I Just Buy RCP?
No. Two reasons:
First, no other brand combines all three. I'm the only one using Redensyl, Capixyl, and Procapil together at full doses.
Second, even if you bought them separately, they wouldn't work. Standard topicals don't penetrate to follicle depth (3-4mm).
I developed a patent-pending liposomal delivery system that gets 5x deeper penetration. Our serums deliver 14.5mg and 4.3mg to follicles. Standard products deliver 2.5mg to the surface.
Without this delivery system, you're just putting expensive compounds on your scalp that never reach your follicles.
You can't replicate this at home.
Question 4: How long
before I see results?
The clinical studies tracked results over 84 days. Here's what happened:
Weeks 1-4: Shedding slowed and stopped. Most women noticed less hair in the shower drain and on their brush.
Weeks 4-8: Baby hairs appeared at temples and along the part. Follicles started reactivating.
Day 84: Researchers documented 10,200 new hairs. Visible density that people commented on.
Most women see their first changes (reduced shedding) within 2 weeks. Baby hairs by week 4-6. Full transformation over 3-6 months.
It's the same timeline as reversing facial skin aging. Week by week, you see improvement.
Question 5: Are the products
vegan and cruelty-free?
Yes! Completely vegan, cruelty-free, and we use sustainable packaging.
Question 6: What if it
doesn't work for me?
Use the entire system — both the Prevention and Treatment serums. Use it for 3 months, and if you don’t see significant improvement, you get your money back.
Question 7: Where can I find
Dr. Kilgour’s Credentials?
Here's his Stanford profile: https://med.stanford.edu/profiles/james-kilgour
He was also featured in Vogue recently: https://www.vogue.com/article/best-hair-mask-for-growth
You can also check his board certification for Dermatology here:
Question 8: Any
side effects?
In all clinical studies, zero adverse effects were reported. Unlike minoxidil's burning, itching, facial hair growth, and heart palpitations.
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