Hi Sarah.
Thank you very much for your reply.
According to all dermaroller user instructions it's safe to use device all around the body. Assuming that penile skin is not an exception of this. Of course with the proper needle length (max 0,5mm).
I will be very interested to find more information regarding penile skin dermarolling in general. Unfortunately there is almost no publication regarding this topic. I assume that dermarolling penis is beneficial, considering that penile skin and even inner structural parts of penis are more or less collagen and elastin. I wonder if regular dermarolling can improve for example Peyronie's desease (formation of scar tissue under penile skin of unknown reason/ due to trauma)? What is your view on that? Will dermaroller with 1,0mm or longer (1,5mm max) needle length improve in theory existing inner penile scar tissue or will it create even more new scar tissue? In other words does elastin fibers for example benefit from dermarolling or does dermaroller needling create irreversible damage/ more scar tissue formation over time? I guess what I'm trying to find out is wether dermarolling penis in general beneficial for regeneration of penile cells (skin and possible inner layers that consists of collagen and elastin) or does dermaroller create abnormal regeneration in form of scar tissue? The most important question that Im trying to find the answer for is wether dermarolling with longer needles (1,0-1,5mm max) can in theory regenerate and improve inner penile cells due to already existing penile trauma in form of tear or scar formation? Like in case of Peyronie's deseace or in penile fracture case? I will greatly appreciate your reply on this broader topic regarding regeneration of inner penile layers with dermaroller. Below you can find explanation of structural layer composition of penis:
The Structure of the Penile Sheath
The layers of the penis from the outside in are the:
1. epidermis
2. dermis
3. Superficial fascia [a.k.a. loose areolar [small pigmented circular layer] (loose connective tissue connected to the dermis which enables the extraordinary mobility of the penile skin -- which is also intimately connected with the Dartos-Peripenic muscle layer and most superficial veins).
4. Fascia penis (condensed connective tissue which surrounds both the corpora cavernosa and corpora spongiosum, separates the superficial veins from the deep veins, joins the tunica albuginea [a strong very elastic, white fibrous coat, forming a sheath] at the sulcus).
5. Tunica albuginea (very dense connective tissue that is almost pure collagen, surrounds each corpus cavernosum penis and therefore also forms the median septum, provides strength against over-inflation [e.g. re-enforced garden hose] and therefore determines maximum penile size).
6. From there in, it is the erectile core, the corpus cavernosa penis. ( see "The Frenular Delta" by Ken McGrath, 1997)