Don't want to scare anybody but i found this and it's quite recent and it has some really good information... It's only theory i think but it comes from someone that has a lot of experience and the site from what i saw since i started lurking it posts a lot of valid and useful information and it's really up to date, it's owner seems like a very good and truthful man that really wants to help and is really passionate, but i'm sure most of you already know it.
"Whilst the molecular details of this growth control are not fully understood, we do know that the Wnt’s pathway is involved here. This explains why manipulating Wnt’s does have an effect upon follicle size. But this is not a viable treatment strategy, because of the real danger of producing cancerous growth.
The in vivo spatial growth controls are also known to be relaxed somewhat during the healing process.
This explains why scalp wounding can increase the local hair growth. But this is only a short term effect, and continuous wounding will increase the local fibrotic tissue, making the situation worse in the long term.
There is only ever going to be one way to significantly increase hair growth in these circumstances, and this is of course to significantly reduce the tissue pressure around the follicles. All the current treatments that have some effect upon increasing follicle size, all do this to some degree. Minoxidil, latanoprost, lasers, anti-inflammatories, massage, and reducing the androgen stimulus (Finasteride)."
You can find the whole information and article here, it contains also 2 links to 2 PDF explaining his whole theory, i did not have time to read them but i will this days...
Source :
https://www.hairlosscure2020.com/stephen-foote-and-his-hydraulic-theory-of-hair-loss/ - 24/06/2019 article date