What is Dermaheal HL? Dermaheal HL is an anti-hair loss mesotherapy prevention, it works to improve hair loss and alopecia for both men and women. Induces hair growth by revitalising the hair follicles and stimulating blood circulation. Improves scalp problems and increases thickness and fullness of hair throughout. Stimulates and strengthens hair follicles. Moisturises and nourishes hair and scalp.