Interesting article about hair removal

http://www.connect2cuba.com/modules.php?..r=0&thold=0

Scammers trying to get your money

The article itself is legitimate, but the site hosting it is a spam site. Omi has written several papers on lasers and histology:


Lasers Surg Med. 1999;25(5):451-5. Related Articles, Links
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Histologic effects of ruby laser hair removal in Japanese patients.

Omi T, Honda M, Yamamoto K, Hata M, Akimoto M, Asano G, Kawana S.

Department of Dermatology, Queen's Square Medical Center, Kanagawa 220-6204, Japan.

BACKGROUND AND OBJECTIVE: Hair removal by lasers has recently become a popular method to remove unwanted hair. However, histologic changes in human skin before and after exposure to lasers have not been thoroughly investigated. The aim of this study was to clarify the differences that occur immediately after laser exposure and 1 month after laser exposure. STUDY DESIGN/MATERIALS AND METHODS: Eight adult Japanese volunteers were recruited for this study. They were treated with a long pulsed ruby laser at 20 J/cm(2). A single 3-mm punch biopsy of the laser-treated sites was obtained immediately after laser irradiation and at the 1-month follow-up visit, and they were analyzed using hematoxylin and eosin, PAM, and immunohistological staining. RESULTS: Immediately after laser exposure, hair follicles were very damaged and had extensive eosinophilic degeneration. One month after laser therapy, one type of hair follicle showed cystlike formations with negative proliferating cell nuclear antigen reactions (PCNA). Another type of hair follicle showed follicular mitotic figures with cytoplasmic halos. Early anagen hair follicles were apparently not treated effectively by ruby laser. CONCLUSION: Ruby laser leads to extensive follicular damage, and hair follicles considered to be at early anagen phase were not effectively treated. This may be the reason several courses of laser therapy are required to obtain satisfactory results. Copyright 1999 Wiley-Liss, Inc.

PMID: 10602139 [PubMed - indexed for MEDLINE]

J Nippon Med Sch. 2002 Dec;69(6):564-70. Related Articles, Links
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[Histological changes elicited by hair removal lasers]

[Article in Japanese]

Kato T, Omi T, Asano G, Kawana S.

Department of Dermatology, Nippon Medical School, Tokyo, Japan. [email]tokue@nms.ac.jp[/email]

Several different laser systems are currently used to remove unwanted hairs. In this study, we studied follicular changes following hair removal with ruby or alexandrite lasers at different fluences. Unwanted hairs were treated with a ruby laser (ICN, Photon Ics, UK) at 10, 14, 18 J/cm(2) or an alexandrite laser (Cynosure, USA) at 11, 14, 17 J/cm(2). A 3 mm punch biopsy was taken immediately after each laser exposure and one month later. Specimens were stained for histological observations. They were observed using immunohistochemistry to Factor VIII related antigen and PCNA, and also by the TUNEL method. Immediately after the laser exposure, moderate follicular damage was observed following treatment with either laser. One month later, cystic formation of hair follicles and foreign body giant cells were observed in skin treated with either laser. The similar influence of each laser treatment resulted in similar histological changes. In this study, the histological changes following treatment with a ruby or an alexandrite laser at the same fluence were considered to be similar.

PMID: 12646989 [PubMed - indexed for MEDLINE]

J Cosmet Laser Ther. 2004 May;6(1):32-7. Related Articles, Links
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Histological hair removal study by ruby or alexandrite laser with comparative study on the effects of wavelength and fluence.

Kato T, Omi T, Naito Z, Hirai T, Kawana S.

Department of Dermatology, Nippon Medical School, Tokyo, Japan.

BACKGROUND: Several different laser systems are currently used to remove unwanted hairs. In this study, we studied follicular changes following hair removal with ruby or alexandrite lasers at different fluences. METHODS: Unwanted hairs were treated with a ruby laser (Chromos 694, ICN PhotonIcs, UK) at 10, 14 or 18 J/cm2 or with an alexandrite laser (LPIR, Cynosure, USA) at 11, 14 or 17 J/cm2. A 3 mm skin punch biopsy was taken immediately after each laser exposure and also 1 month later. Specimens were stained for histological observation. They were observed using immunohistochemistry with antibodies recognizing factor VIII related antigen or PCNA, and also by the TUNEL method. Similarly, electron microscopic observation was examined. RESULTS: Immediately after the laser exposure, moderate follicular damage was observed following treatment with either type of laser. One month later, cystic formation of hair follicles and foreign body giant cells were observed in skin treated with either type of laser. A similar fluence with either laser treatment resulted in similar histological changes. CONCLUSION: In this study, the histological changes following treatment with a ruby or an alexandrite laser at the same fluence are similar.

PMID: 15370411 [PubMed - indexed for MEDLINE]

Thanks Andrea. It is better for people to read the article here, than to click on a link taking someone to a site advertising a Global/Vector “Home Use LASER”

I don’t know much about Ruby lasers other than the fact none of them are coming near my skin. The fluences for the alexandrite laser (probably Apogee) seemed extremely low. I would not expect much follicular damage from those fluences unless the hair is extremely coarse.

That is a scary combination seeing that on a scam site. Give 'em just enough legit information to make the site seem legit! I have to hand it to them for smart marketing though.

RJC2001