Not all hair colors respond equally; very light blond, red, gray

https://privatebin.net/?f68cd262f5cdae7c#5E34rY1wa68epqpdZYYFx7q4uE9C7bHJypKuN3LJ3CsC

Not all hair colors respond equally; very light blond, red, gray, or white hairs may be less responsive since they contain less pigment for the laser to target.