✶ HOW WE TESTED
We asked more than 500 testers, with self-diagnosed mild to extreme hair loss or thinning, to trial 36 different shampoos (and their matching conditioners) over a one-month period.
We asked more than 500 testers, with self-diagnosed mild to extreme hair loss or thinning, to trial 36 different shampoos (and their matching conditioners) over a one-month period.