Take a good look at the diagram above. This shows the measurements of hair loss in men according to the famous Norwood Scale. If you're worried about hair loss then evaluate the diagram above and decide which of the stages closely matches your hair loss pattern. If you fall between stages 2 and 4 then you are more than likely eligible to use natural hair loss treatments such as HR23 that can help slow down and prevent hair loss. If you are hovering above the stage 4 pattern, then you are best off going down the path of a more technical procedure such as hair implant surgery.