Cold shock therapy may promote hair growth by stimulating follicular muscles and affecting stem cells. The exact mechanisms and full range of elements involved are not yet fully understood.
The conversation discusses using oral castor oil as a hair growth stimulant for beard and scalp hair. One user questions its use, noting castor oil is typically a laxative in the Philippines.
Caffeine shampoos show comparable results to Minoxidil and may enhance its effects when used together. Caffeine can be detected in the scalp up to 24 hours after a 2-minute application, making it an affordable treatment option.