Amorepacific researchers have identified a peptide linked to stronger, healthier hair, potentially opening new avenues for hair-care innovation. Published in Experimental Dermatology, the study found that the microenvironment of hair follicles, where hair grows, affects the strength and quality of newly formed hair, and that hair breakage resistance declines with age. The findings provide new insights into the factors affecting hair quality and could inform the development of scalp and hair-care products designed to strengthen hair and reduce breakage.