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This study was carried out to evaluate the body fat breakdown during topical seaweed extract treatment and in combination with the iontophoresis, phonophoresis method to enhance skin absorption of lipolytic compounds. Of 24 female obesity subjects, 7 treated a gel types of seaweed extract only(control group) and 10 treated in combination with the iontophoresis(experimental group I) and 7 treated in combination with the phonophoresis(experimental group II). Topical treatment of each sample was designed for 2 weeks, treated with 2 times a day about 10m{ell} on the abdomen, triceps, thigh and superior ilium, respectively. Experimental group treat with the iontophoresis and phonophoresis during 5 minutes immediately after topical treatment. After one and two weeks of topical treatment, measured body weight, body fat, skinfolds thickness respectively. Then venous blood samples were taken and analyzed serum lipids. The results were as follows; 1) There were decrement of body weight, % of body fat, superior ilium, triceps and thigh thickness between pre and post treatment in all group. Especially, there were more decrement of body weight, % of body fat in the iontophoresis treated group. 2) There were decrement in total CHOL, LDL, TRIG and increment in HDL in all group. These phenomena were predominant in the iontophoresis treated group. CHOL decrement in the experimental group were significant after two weeks iontophoresis treatment.
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