(IMAGE) Yokohama National University Caption Cinnamic acid treatment increased the sprouting length of hair follicle organoids, suggesting that cinnamic acid promoted hair growth. Credit Yokohama National University Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.