Explain the concept of ‘intervals’ between treatment sessions.

Intervals between treatment sessions are essential in laser hair removal because they allow time for hair follicles to progress to the appropriate growth stage known as the anagen phase. Laser hair removal is most effective when targeting hair in this growth phase because this is when the hair is actively growing and is most receptive to the laser's energy.

As hair grows in cycles, not all hairs are in the anagen phase simultaneously. Therefore, scheduling treatment sessions at specific intervals ensures that subsequent treatments coincide with hair follicles that have entered this stage. This approach enhances the efficacy of the treatment and maximizes hair reduction.

In contrast, not recognizing the necessity of intervals could lead to suboptimal results, as treating hairs that are not in the right stage may not yield a significant reduction. Client preference might influence scheduling, but the scientifically established timing of the hair growth cycle is the primary factor determining the intervals chosen between sessions. Finally, intervals do indeed have a significant impact on treatment outcomes, contrary to any suggestion that they might not.