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Researchers in Japan have found that chemical compounds found in cayenne peppers and soy beans stimulate hair growth.
Capsaicin - a chemical component in cayenne peppers – has been shown to increase IGF-I production in previous studies. Insulin-like growth factor-I (IGF-I) plays an important role in hair growth. In another separate study isoflavone - a phytoestrogen found in soy beans - was also found to increase IGF-1 production.
In the study below the researchers decided to test a combination of capsaicin and isoflavone as a hair growth stimulant.
They first tested it on mice and gave the mice oral doses of capsaicin and isoflavone for a period of 4 weeks. After the 4 weeks they found that the mice that had been given these chemical compounds had increased IGF-I levels in their dermal papillae of their hair follicles.
The researchers then gave it to human volunteers suffering with hair loss. Volunteers with alopecia (hair loss) were given oral doses of capsaicin (6mg/day) and isoflavone (75mg/day) for 5 months.
After 5 months the plasma (blood) levels of IGF-I were significantly increased from baseline levels in the 31 volunteers who had taken the active ingredients, compared to the 17 volunteers who just got a placebo.
In addition, the number of volunteers with alopecia who showed promotion of hair growth at 5 months was significantly higher among volunteers administered capsaicin and isoflavone than the placebo group.
Based on this outcome the researchers concluded that combined administration of capsaicin and isoflavone might increase IGF-I production in hair follicles in the skin, thereby promoting hair growth.
Capsaicin - a chemical component in cayenne peppers – has been shown to increase IGF-I production in previous studies. Insulin-like growth factor-I (IGF-I) plays an important role in hair growth. In another separate study isoflavone - a phytoestrogen found in soy beans - was also found to increase IGF-1 production.
In the study below the researchers decided to test a combination of capsaicin and isoflavone as a hair growth stimulant.
They first tested it on mice and gave the mice oral doses of capsaicin and isoflavone for a period of 4 weeks. After the 4 weeks they found that the mice that had been given these chemical compounds had increased IGF-I levels in their dermal papillae of their hair follicles.
The researchers then gave it to human volunteers suffering with hair loss. Volunteers with alopecia (hair loss) were given oral doses of capsaicin (6mg/day) and isoflavone (75mg/day) for 5 months.
After 5 months the plasma (blood) levels of IGF-I were significantly increased from baseline levels in the 31 volunteers who had taken the active ingredients, compared to the 17 volunteers who just got a placebo.
In addition, the number of volunteers with alopecia who showed promotion of hair growth at 5 months was significantly higher among volunteers administered capsaicin and isoflavone than the placebo group.
Based on this outcome the researchers concluded that combined administration of capsaicin and isoflavone might increase IGF-I production in hair follicles in the skin, thereby promoting hair growth.