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发7
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发表于 2011-7-6 13:20:36
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回复:生发过程的一点体会
second treatment step
a second treatment step of the present invention concerns the application to the scalp of a second treatment solution comprising chlorine dioxide (clo.sub.2). in addition to oxidizing and suppressing or controlling 5.alpha.-reductase (8), chlorine dioxide also continues to eliminate debris in the hair follicle. moreover, chlorine dioxide also acts as an anti-bacterial agent for the scalp.
according to a preferred embodiment of the invention, a solution containing chlorine dioxide is first applied to the scalp and allowed to penetrate the hair follicle. once this process is complete, an acidic solution is applied to the scalp, liberating oxygen in the chlorine dioxide and oxidizing 5.alpha.-reductase upon contact. as noted above, this treatment also has additional benefits in that additional sebum is removed from the hair follicle and in that the chlorine dioxide acts as an anti-bacterial agent.
preferred chlorine dioxide concentrations in the aqueous solution range from 100 to 1000 ppm, more preferably 100 to 500 ppm, even more preferably about 250 to 500 ppm. if the chlorine dioxide source contains higher levels, it can be diluted using an appropriate solvent. for example, the chlorine dioxide can simply be diluted in water. alternatively, the chlorine dioxide can be diluted in a commonly available hair care base. the diluent, however, should not be so strongly buffered that it becomes difficult to render the chlorine dioxide sufficiently acidic upon application of the acidic solution to break down the chlorine dioxide.
the preferred ph range for the acidic solution is from about 3.8 to 4.2. citric acid and/or ascorbic acid are the preferred acidic species used to provide the desired ph, but practically any biologically compatible acid can be used, so long as it can achieve the desired ph.
if desired, additional agents such as tea tree oil, rubefacients and so forth can be added to the chlorine dioxide solution, to the acidic solution or both. for example, tea tree oil can be added to continue to remove sebum and to minimize scalp discomfort. similarly, nicotinates can be added to increase circulation to the scalp and to open the follicle entra |
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发表于 2011-7-5 10:58:28
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