Why are implanted hairs permanent?

Why are implanted hairs permanent?

What is the lifespan of implanted hair?

The transplanted hair is hair that, if taken according to the rules of the art from the “healthy” donor area, will continue its normal life until the time programmed by genetics.
Hair from a “healthy” donor area, that is to say the lateral and posterior scalp, are naturally programmed for an average life of 25 cycles, meaning 75 to 100 years of life, considering that each cycle lasts 3 to 4 years.
Moving the hair from the donor area to another one does not change their permanent feature.
The genetics of hair from the lateral and posterior areas of the scalp determines their insensitivity to the male hormone dihydrotestosterone (DHT). DHT is the hormone that influences the duration of the life cycles of hair found in the upper and frontal areas of the scalp (frontal area, temples, mid-scalp and vertex) by shortening these cycles, resulting in an onset and acceleration of baldness in people with androgenogenetic alopecia.