#8980 - 09/01/02 05:03 PM
Re: Regrowth charts
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Top Ten Contributor
Registered: 07/18/02
Posts: 276
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Hair grows back at different rates in different parts of the body. Typically hair will grow back in about 6 to 8 weeks, so at 3 weeks you are probably seeing hairs that were not visible when you did the treatment to that area. So although you may have good success at eliminating the hairs you did treat, you still need to treat the area repeatedly as other hairs surface. If you did not properly destroy the hairs that you did treat, then of course they may come back weaker or full force, depending on the skill of your initial treatment, and may need to be treated again.
I believe that 40 seconds is a much more controllable treatment time than 15. A few seconds of overtreatment at the lower setting will do much less damage than the same amount of extra time at a high setting. You should be judging the overall time by the success of the treatment of the previous similar hair; the time should be just enough to remove the hair without much force. Any extra time and you can do unwanted damage. Thicker and/or deeper hairs often require more treatment time at the same dial setting.
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#8982 - 09/06/02 09:40 PM
Re: Regrowth charts
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Top Ten Contributor
Registered: 07/18/02
Posts: 276
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Gior's book Modern Electrology has a chart titled Regrowth Time Chart:
Hairline (front or back) F/M - 5 to 6 weeks Eyebrows F/M - 5 to 6 weeks Top of Nose F/M - 10 to 12 weeks Upper Lip (vellus hair) F - 8 to 9 weeks Upper Lip (terminal) F/M - 4 to 6 weeks Side of Face (vellus) F - 12 to 14 weeks Side of Face (terminal) F/M - 5 to 6 weeks Chin (vellus) F - 6 to 7 weeks Chin (terminal) F/M - 5 to 6 weeks Neck (terminal) F - 5 to 6 weeks Neck (terminal) M - 4 to 5 weeks Ears (outside vellus) F/M - 10 to 11 weeks Ears (outside terminal) F/M - 7 to 8 weeks Breast F - 7 to 8 weeks Chest (terminal) F - 7 to 8 weeks Chest (terminal) M - 6 to 7 weeks Back & Shoulders (terminal) F - 7 to 8 weeks Back & Shoulders (terminal) M - 6 to 7 weeks Arms (terminal) F/M - 7 to 8 weeks Legs (terminal) F/M - 6 to 7 weeks Hands (terminal) F/M - 7 to 8 weeks Underarms (terminal) F/M - 7 to 8 weeks Abdomen (terminal) F - 8 to 9 weeks Inner Thighs (terminal) F - 5 to 6 weeks Feet, toes (terminal) F/M - 6 to 8 weeks
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#8983 - 09/06/02 10:33 PM
Re: Regrowth charts
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hairtell.com founder
Top 10 Contributor
Registered: 03/22/02
Posts: 4149
Loc: Los Angeles
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Fino's estimates are not based on published clinical data.
Myers and Hamilton observed rates of 3 to 4 months for hairs to return after plucking from scalp, armpit, and thigh, as an example.
A more useful chart of growth cycles appears in Richards, p. 39:
T = duration of telogen A = duration of anagen
Eyebrows: 16-20 weeks T = 12 weeks A = 4-8 weeks
Ears: 16-20 weeks T = 12 weeks A = 4-8 weeks
Beard (chin): 66 weeks T = 10 weeks A = 52 weeks
Moustache (upper lip): 22 weeks T = 6 weeks A = 16 weeks
Axillae (armpits): 28 weeks T = 12 weeks A = 16 weeks
Arms: 31 weeks T = 18 weeks A = 13 weeks
Legs & thighs: 40 weeks T = 24 weeks A =16 weeks
The Richards/Meharg chart is by no means complete, since very few clinical studies have performed careful observations of individual hair follicles. They cite 14 published papers in compiling their chart of hair growth, and the chart itself as it appears in their book has many blank spots. Better to wait until someone performs clinical observations than to hazard a guess, they feel. I do, too.
I like and respect Fino Gior a lot, but he sometimes makes authoritative statements based on anecdotal observations rather than meticulous scientific data. This tendency of making authoritative-sounding statements with no basis in published medical data has led to loopholes exploited by hair removal quacks, such as a 1979 promotional brochure he authored which laid out a supposed "standard" by which epilators should be judged.
What this goes to show is that even people with the best intentions should base statements on careful clinical observation when dealing with something as complicated as hair removal. Fino's estimates of time to completion are very useful for consumers, but they are just that-- estimates. His regrowth chart is, in my opinion, spurious at best.
I believe the only way to determine long-term hair removal is to observe for 26 weeks after final treatment (a standard growth cycle for many types of hair), and the only way to determine permanent hair removal is to make observations 52 weeks after final treatment (two standard growth cycles for many types of hair). [ September 06, 2002, 03:40 PM: Message edited by: Andrea ]
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#8984 - 09/07/02 01:01 AM
Re: Regrowth charts
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Top Ten Contributor
Registered: 07/18/02
Posts: 276
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I agree. Thanks for the info!
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#8988 - 09/11/02 03:39 AM
Re: Regrowth charts
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hairtell.com founder
Top 10 Contributor
Registered: 03/22/02
Posts: 4149
Loc: Los Angeles
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Yes, it stands to reason that laser may assist in synchronizing hair growth patterns after several treatments. The complete Richards/Meharg chart is not available online as far as I know. Their site mehargelectrolysis.com appears to be down. Hairfacts: Richards/Meharg publishing data If you are interested in purchasing a copy of COSMETIC AND MEDICAL ELECTROLYSIS AND TEMPORARY HAIR REMOVAL In the U.S./overseas send: $69.95 + $9.00 postage/handling = $78.95 U.S. Currency -cheque/money order In Canada Only (add GST) send: $69.95 + $6.00 postage/handling + 7% = $81.27 Canadian Currency Medric Ltd. P.O. Box No. 1000 Station B North York, Ontario Canada M2K 2T6 Website www.medricltd.com
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