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The Treatment Scalp Serum

Regrow stronger, shinier hair with the second stage of our system: The Treatment Scalp Serum. Designed to combat hair thinning and replenish sparse areas, our hair treatment product fortifies your follicles so they behave younger, keeping them more resistant to the effects of scalp ageing. Plus, by boosting circulation to your scalp, it helps oxygen-rich blood reach your follicles, providing essential nutrients for thicker-looking hair.

This solution in our scalp treatment product features Redensyl®, a groundbreaking organic compound that targets the stem cells of follicles, combined with our proprietary blend of eight botanicals—each packed with anti-inflammatory and antioxidant benefits. When used alongside The Prevention Scalp Serum, the results proved to outperform minoxidil in a peer-reviewed, randomized control trial.

Just apply a few drops to your scalp and massage in the product. Repeat this process every night. Try our scalp and hair thinning treatment for transformative rejuvenation.


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How to use our hair regrowth serums

Step 1

Pump 3-4 drops of product onto your palm.

Step 2

Spread a thin layer across your fingertips.

Step 3

Apply directly to the scalp, using your fingertips and massage in.

Step 4

Style your hair as usual!


Real people, real results


Customer Reviews

Based on 61 reviews
Hair feels nice

I am finishing up my second month. While I have not seen new growth yet, the texture of my existing hair feels good and feels thicker. I am using the Prevent and Treatment serums.


I’ve been a minoxidil user for 12 years and was so excited to try something more natural ( I read their study that this serum out-performed minoxidil). Unfortunately, my experience was the exact opposite. I feel my hair took at least 2 steps back and definitely suffered hair loss after stopping my minoxidil. I guess it’s different for everyone, but this definitely did not work for me. I’ve sadly learned not to always believe the hype :(

Stacey K.
My hairdresser can’t believe my hair growth!

My hairdresser has been cutting my hair for 15 years. Today, I went for my cut and she was so surprised by the new hair growth. I am 50 and so thrilled to know this products works so well on my older scalp! I only used the Prevent Serum. I have used it pretty regularly for the last 2.5 months.

Ethel M.B.
Five-star Excitement

EXCITED AND VERY HAPPY. A dear friend recommended Kilgour Hair product in April 2024. I immediately began using upon arrival. My 76 yr old eyes see growth. 1st photo right taken April 25th. 2nd photo left taken May 15th. It works. Highly recommend.


My hair has started growing back- love this product!!

Priya P.
The only thing that has worked.

I cannot give this a high enough rating. I was getting desperate with my hair loss, and had tried basically everything out there, from topicals to systemic medications to treatments such as PRP and devices such as light caps. This product by Kilgourmd is literally the ONLY thing that has worked for me.

Mark S.
Great results!

Great results! All natural and effective…very fast shipping and attentive with any questions i had!

Girija S.
Supercharges your hair!

I love the product! I’ve been suffering from shedding and was using just The Prevention alone - which works fantastically. The Treatment is the cherry on the cake - my hair thickness is greater than ever, with a massive reduction in shedding. I even used it on my beard recently!

Caroline E.
Hairdresser noticed the new growth

I was pleasantly surprised when my hairdresser, unaware of any changes I had made, remarked on the noticeable growth and increased volume of my hair. It was so exciting to hear!

Rachel H.
Consistency is crucial for quick results

This serum is incredibly effective! I've experienced some hair loss around my temples, likely from years of tying my ponytail too tightly. After using this product daily for 2 months, I began noticing remarkable results. Thin hairs started to grow in where I applied the serum. Additionally, I observed my hair feeling healthier and thicker overall. Integrating it into my regular hair care routine was effortless.