do NOT needle your scalp. You will cause uneccessary scar tissue up there.
Follica found out that wounds needed only be deep enough to disrupt the epidermal layer to cause de noveau (brand new) hair growth with a WNT-7A compound added. They used both dermabrasion and incision wounds in experiments (cut with a knife surgically). The needling "pushers" probably are indeed either people who sell dermarollers or people who have not bothered to read the follica patent.
Causing scar tissue up there will make it more difficult for hair to grow, even hair transplanted hair does not grow as well in scars.
What Follica appears to be doing is this;..............................they will depilate the scalp (plucking the hair) with a compound somewhat like the commercial product Nair......and then they wait for three days before dermabrasion.
2) They will abrade the scalp via professional dermabrasion--------although sandpaper is one of the "defensive" embodiments in their patent. You wait three days again, in which time you put absolutely nothing on your scalp at all. In fact, you will probably be advised to only water-clean the scalp for three or four or even five days. No ointments, no anti-infectives, no BANDAGES, and probably no sleeping on the treated area.
3) you will be taking a very expensive epidermal growth factor BLOCKING drug so that your body cannot just repair the skin.........it will force the epidermal cells to make new hair follicles to give off the proper signalling to rejuvinate the skin just like it happens in wounded animals out in the wild
4) after day 3, they will put a compound on your head that is composed of WNT protiens, especailly wnt-7a. IN experiments, the group treated with wnt7a grew 140 hairs in the abraded area vs. 10 hairs for the wounded-only group.
This will continue from day 3-thru-12 after the wounding. The compound they put on your head will have alot more in it however. Number one, they probably will ask you to be on finasteride for the entire duration of this process......about 18 days anyway, or to use a topical anti-androgen (flutamide, fluridil, cyterperone acentate, and spironolactone are mentioned as possibles in the patent), but the topical they will have will consist of things they tried and found to augment the hair growth, some were bits of DNA, others were Fiberblast growth factor, minoxidil, bromoindirubin-3'-oxime (BIO, hedgehog, certain dna fragments, particular nucleotides, hair follicle stem cells, DP cells, inner and outer root sheath cells, estrogen receptor agonsists and possibly (but not likely) beta catenin (that one might be dangerous, even for only nine days).
You would be well advised not to try it at home unless you thouroughly read the patent three or four times, every boring word, and have a scientific background in my opinion. You dont want to do something freak and wind up with thicker skin or more sebaceous glands however remote the chances of that may be.
They expect a product to be out in as little as three years or a little more if their experiments go well in human beings. Their experiments did go well on human skin grafted on to a mouse that grew human hair, so they are confident......
Again, needling alone, probably would not be very effective in growing much hair........................You'd literally be better of sandpapering, waiting three days and adding some of the chemicals they mention in their patent from day three to twelve after the wounding, but even then.......................you probably wouldn't grow much hair. Blocking epidermal growth factor, the pre-emptive depilation of existing follicles three days before all seem to be important factors in them being successful. It would be better to waiit for them to develop their product in my opinion unless you are a doctor experienced in this kind of thing.