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Mr. Liebl,
I have been reading extensively on collagen induction, and am excited to learn about such a compelling product. Having endured 4 painful Fraxel treatments with limited results (and horrid swelling), I am very much looking forward to experiencing the results you are able to achieve.
I do have one question that remains unanswered, and that pertains to needle length. I am hoping you can enlighten me in this respect.
In the abstract “STIMULATION OF CELL GROWTH” it stated that collagen fibers were not produced deeper than 0.5 to 0.6mm even though 1.5mm needles were used for penetration (quote listed below).
Does this mean that a Dermaroller with a needle length of LESS than 1.5mm can produce these same results? If yes, what is the shortest needle than can effectively impact moderate wrinkles, pigmentation issues, and other anti-aging concerns? (I do understand that both needle length and eletrical charge may come into play regarding results)
Thank you for providing an alternative to lasers, etc….your work is very much appreciated. I look forward to your reply.
Bethany
Quote from Abstract:
The theory expounded by some experts ‘the longer the needle the better’, is not supported by scientific evidence! After evaluation of all of the biopsies in Dr Schwarz’s study, new collagen fibers were only found close to the corium and not deeper than 0.5 to 0.6 mm. Although the Dermaroller model MF8 has 1.5 mm long needles, no significant new collagen and elastin formation could be found in the sub-dermal tissue. It may be possible that longer needles may have a higher electrical potential, but needles longer than 1.5 mm increase the risk to damage nerves and vessels, and this again will result in haematomas and possible nerve paralysis.
Dr. Liebl,
I have been using my homecare version of the dermaroller and am very certain that it is helping me get better results from my skincare actives.
However, I recently read an article that made me wonder if the homecare roller could contribute to ongoing inflammation by disturbing the stratum corneum permeability barrier if you use it more frequently than every 2 weeks. And based on the article, it sounds as though long term inflammation could have very negative results on my skin over time.
If you could address this, I would greatly appreciate it since I would like to keep using my roller!
Please email me if you need the pdf with the complete article.
Many thanks,
Bethany
Chronic inflammation is etiology of extrinsic aging
Author: Thornfeldt, Carl R
Source: Journal of Cosmetic Dermatology, Volume 7, Number 1, March 2008 , pp. 78-82(5)
Excerpt:
Any degree of repeated or chronic disruption of the stratum corneum barrier has been documented to activate chronic inflammation. Acute inflammation followed by complete rejuvenation of the stratum corneum permeability barrier does not seem to induce or exacerbate destructive chronic inflammation if more than 2 weeks elapses between treatments.
http://www.ingentaconnect.com/content/bsc/jcd/2008/00000007/00000001/art00015;jsessionid=1as1b46rel71l.alexandra