How does caffeine in shampoo help prevent hair loss?
Caffeine in shampoo may help prevent hair loss by penetrating the scalp to reach hair follicles and countering the effects of hormones that shorten the hair growth phase. Studies show it can increase hair density and reduce hair fall when left on the scalp for about two minutes during washing. However, evidence is limited, and long-term prevention is not fully proven.
Key points:
- Caffeine shields hair roots from hormone damage that causes early end to growth phases.
- It boosts energy supply to follicles, helping extend hair growth and improve density.
- Shampoos with caffeine have shown reduced hair loss in trials compared to those without.
- Absorption happens quickly through the scalp after a short application time.
This text has been fact-checked for accuracy by Sorin Romaniuc, Pharmacist at medino.