For effective treatment, what type of hairs should a smaller spot size be used on?

Using a smaller spot size for treatment is most effective on thinner or smaller hairs because the focused energy can specifically target these hairs without affecting the surrounding tissue excessively. Smaller hairs typically have a finer texture and may require a more precise and concentrated application of laser energy for effective results.

In treatments involving laser hair removal, the energy needs to penetrate the hair follicle and surrounding area. Thinner hairs, being less robust, respond well to the focused energy provided by a smaller spot size as it allows for efficient targeting and minimizes the risk of surrounding skin damage. Additionally, smaller spot sizes can help achieve finer details in areas where precision is crucial.

For thicker or coarse hairs, while a smaller spot size could be applied, it is generally more effective to use a larger spot size that can deliver energy more evenly and efficiently to the deeper hair follicles.

In summary, a smaller spot size is tailored for treating thinner or smaller hairs, ensuring that the energy is effectively concentrated where it is needed most for optimal treatment outcomes.