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

The most important factor in seeing results from the serum is consistent, daily use. The optimal routine is whichever approach fits most naturally into your day and allows you to use it consistently — whether you apply morning or evening, or whether you apply on wet or dry hair or before styling.

The key is giving the product enough time to absorb properly. In our clinical studies, we allowed the products to absorb for approximately 12 hours, so we recommend avoiding showering or washing the treated area during that time.

The ideal dose is a full dropper which is approximately 1 mL. If the dropper does not fill all the way, repeat to make a full dropper. 

If your current dropper is difficult to measure, you can also use a different applicator, such as a generic minoxidil applicator purchased online, as long as it allows you to accurately measure 1 mL.

Your ideal amount may vary slightly depending on your hair density. Finer hair may require less product, while thicker hair may require more to adequately cover the scalp

The Treatment and Prevention serums were formulated by Dr. Kilgour to work together as a dual-action system. Because they target different aspects of the hair-thinning process, using both consistently is expected to provide the strongest overall results.

• Prevention Serum: Focuses on creating a healthier scalp environment by supporting scalp balance, reducing inflammation and oxidative stress, and helping minimize shedding.
• Treatment Serum: Focuses more on supporting follicle activity and improving the appearance of hair density and fullness in areas that are already thinning.

For the most comprehensive approach, we recommend using both serums together rather than relying on just one. Shop the bundle here.

The recommended amount for each serum is 1 mL per day. However, depending on your hair type and density, you may need slightly more to ensure the serum reaches and covers your entire scalp.

For fine or thin hair, 1 mL may be enough to provide full scalp coverage. With thicker or denser hair, more hair sits between the serum and your scalp, so you may need to use additional product to make sure it reaches the areas you’re targeting.

For the best coverage, part your hair into sections and apply the serum directly to the scalp, rather than applying it primarily to the hair. This helps ensure the product reaches the scalp where it’s intended to work.

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.

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.

While visual improvements typically take 3–6 months of consistent use, many people feel less scalp irritation and a healthier-feeling scalp within the first weeks of use!

We’re so  confident you’ll love your results, we offer a 90-day, no-questions-asked refund, backed by our full refund policy.

Refunds are subject to our full refund policy.