While used as an anti-aging skin treatment, microneedling may also be a method of treatment for hair loss. There’s evidence that it can help a special type of hair loss known as alopecia areata. The same process of creating wounds in the skin can also regenerate the health of the hair follicles. This can result in new hair growth and thicken thinning hair as seen in androgenic alopecia or male pattern baldness for both men and women.