Category Archives: Wounding

Follica, Microneedling, Women's Hair Loss, Wounding

Scalp Wounding for Hair Growth in Females

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A new pilot study on wounding and hair growth just got released online yesterday. The authors found that wounding via Follica’s microneedling device causes new hair growth in women. This is worth reporting because prior research from Follica only entailed studying hair growth in men.

Wounding, Microneedling, Follica and Female Hair Growth
Before and after hair growth photo for wounding via Follica microneedling device in females. Source: International Journal of Women’s Dermatology. Publisher: Elsevier.

In fact, almost all past research on microneedling and hair growth has focused on male pattern hair loss. Balding men are often satisfied with new hair that grows just 1 inch high. Women, on the other hand, often need superior results in order to make for a natural appearance. I did not think that this would be possible via just wounding and intentional scalp injury.

Men are also more likely to  be ok with a shaved or thin appearance on the sides and rear of their heads. And of course many men can get away with just shaving their head entirely.

Scalp Wounding Causes Hair Growth in Women

This latest study was undertaken using Follica’s technology. See the company’s press release from today. The lead researchers were based at Harvard University and at Massachusetts General Hospital. The team was led by Dr. Maryanne Senna.

The study showed that wounding leads to at least some hair growth in all women. See discussion further below. All of the 11 females in the study suffered from mild to moderate female pattern hair loss (FPHL).

The main limitation of the study is obviously the small sample size. All 11 patients underwent six treatments with Follica’s Hair Follicle Neogenesis (HFN) device. Each treatment lasts for just a few minutes. The scalp skin wounding creates an “embryonic window” that allows new hair follicles to form from epithelial stem cells.

Two of the patients were also using Spironolactone for their hair loss during the trial.

Minoxidil Addition

The study summary initially states that on non-treatment days, participants applied a topical “on-market” drug.  However, later on in the study, it states the following:

“Subjects applied topical minoxidil 5% foam nightly to these areas for the duration of the trial. Topical minoxidil foam was not applied on treatment days.”

So I guess it is Minoxidil and nothing else in Follica’s topical? A lot of online discussion in the past centered around the addition of valproic acid, but this now seems unlikely.

100 Percent Success

  • 10 out of 11 patients reported perceived improvement in hair growth at the end of study.
  • All 11 patients demonstrated improvement in physician-graded Sinclair scores after 4 months. The average improvement in Sinclair grade was slightly more than 1 full integer reduction.

The Sinclair Scale for female pattern hair loss was developed by Dr. Rodney Sinclair of Australia. A more commonly used measure in women is the Ludwig Scale. For men, the most common way to classify degree of baldness is the Hamilton-Norwood Scale.

Also see Follica’s announcement of these findings on Twitter.

According to CEO Jason Bhardwaj, their product has the potential to address both male and female androgenetic alopecia. And this study makes clear that the device works well with both longer and shorter hair.

Follica plans to advance its lead program for male pattern hair loss into Phase 3 trials in 2021.

Valproate, Valproic Acid, Wnt/Beta-Catenin, Wounding

Valproic Acid and Hair Growth

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Last year, I discussed new groundbreaking research from South Korea in relation to the development of a new peptide called  PTD-DBM. This product can activate the Wnt/β-catenin pathway and accelerate hair regrowth via wound-induced hair follicle neogenesis. One part of the findings also dealt with valproic acid and its impact on hair.

Valproic Acid and Hair Growth Research

In the above work that was led by Dr. Kang-Yell Choi, the researchers also found that topical valproic acid (VPA) sped up hair growth in mice. Valproic acid (also known as valproate and sodium valproate) is a medication that is used to treat epilepsy, seizures, bipolar disorder and migraines. However, this chemical can cause significant side effects and is not something to be take lightly.

In the past, there have also been other studies that found hair growth benefits of valproic acid (brand name Depakote). For example, these 2014 findings from South Korea suggest VPA grows hair in humans when used in a topical version.

Several other studies have indicated that valproic acid can change hair color and also change hair texture. However, most of the past research on this subject matter seems to be on small sample sizes. And a majority of these findings seem to be coming from one country: South Korea. Including these clinical trials from 2012.

Valproic Acid and Wounding

Early this week, commentator “John Doe” posted a link to an interesting new study titled “Transcutaneous implantation of VPA-encapsulated dissolving microneedles induces hair regrowth“.

Besides the discussion about valproic acid and hair growth, the study covers the fascinating phenomenon of this unique idea of valproic-acid-encapsulating dissolving microneedles (DMN-VPA). Apparently this method creates dermal micro-wounds than enhance the effects of the VPA upon hair growth. This also seems to support the wounding concept behind the technology of Follica.

Valproic Acid Hair Researcher Dr. Kang Choi.

One of the co-authors of this new paper is the same Dr. Kang-Yell Choi that I mentioned earlier in the post, and the research is yet again conducted in South Korea. Mr. Choi has his own wikipedia entry, and he deserves a photo in this post. He works at Yonsai University. According to the scientists behind this latest research:

“Micro-wounding-mediated implantation of DMN-VPA upregulates expression of Wnt/β-catenin pathway, alkaline phosphatase, proliferating cell nuclear antigen, loricrin and HF stem cell markers, including keratin 15, and CD34 more effectively than topical application.”

Injecting an Epilepsy Drug into the Scalp

At first, I was considering adding the above findings at the top of my next “brief items of interest” post. However, earlier today, my alerts notified me of a new article in newscientist magazine titled “Male balding may be cured by injecting epilepsy drug into scalp.”

I can not access the whole article, but it is about injecting valproic acid into your scalp to regrow hair. If anyone manages to read the whole article, please post about it in the comments. It seems like this predominantly South Korean led area of research is now finding its way into the US.

Valproate and Hair Loss

  • One unusual thing I noticed is that there are a lot of search results on Google that suggest valproic acid can also cause hair loss in people who are taking it orally for seizures and other such conditions.
  • One 2018 article found that oral valproic acid is more likely to cause hair loss. This valproate induced hair loss is typically diffused, nonscarring, and dose related.
  • A while back I covered a self-experimenter by the name “Swisstemples” in detail. One of the ingredients in his protocol is VPA.