What indicators show that hair follicles have been successfully treated?

The indication that hair follicles have been successfully treated is shown by reduced hair density and finer hair texture. This outcome signifies that the laser treatment has effectively damaged the hair follicles, disrupting their ability to regrow hair.

During the process of laser hair removal, the targeted energy is aimed at the pigment in the hair follicles. Successful treatment leads to a decrease in the number of hair follicles that can produce hair, resulting in a thinner and less dense appearance of hair in the treated area. This reduction is a positive indicator of the effectiveness of the laser treatment, as it implies that the targeted follicles are no longer active in hair production.

The other options do not indicate successful treatment. Increased hair density and growth would suggest that the follicles are still active and possibly thriving rather than being effectively treated. Swelling around the hair follicles may occur during or shortly after treatment, but it is not a primary indicator of success; rather, it may signal irritation or an inflammatory response. Skin irritation in treatment areas can occur as a side effect of the procedure but, like swelling, does not directly correlate with successful hair follicle destruction.