Why Some Areas Need More Laser Hair Removal Sessions Than Others

Posted Date : 22 Sep 2026

1. Hair Growth Cycles Are Different Across the Body

Laser hair removal works best when hair is in the active growth phase, known as the anagen phase. However, not all body areas have the same percentage of hairs growing actively at the same time.

Areas like the face, underarms, legs, and bikini region all follow different growth cycles. Because of this, some zones may respond quickly, while others need more sessions to catch enough hairs during the right stage.

2. Hair Thickness and Colour Affect Results

Laser energy targets pigment in the hair follicle, which means darker and thicker hairs usually absorb energy more effectively than very fine or light hairs.

Areas with coarse hair, such as the underarms or bikini region, may respond faster. In contrast, areas with finer hair, such as parts of the face or arms, can require additional sessions for noticeable reduction.

3. Hormonal Areas May Need More Treatment

Certain areas, especially the chin, upper lip, jawline, chest, and abdomen, can be more influenced by hormones. This means new or previously inactive follicles may become active over time.

For people with hormonal conditions, facial and body hair may continue to appear even after several treatments. These areas may therefore need more sessions and occasional maintenance.

4. Skin Type and Laser Settings Matter

The laser settings must be adjusted according to skin tone, hair colour, hair thickness, and treatment area. On darker skin tones, safer and more conservative settings may sometimes be used to reduce the risk of burns or pigmentation changes.

Because of these adjustments, some areas may need more gradual treatment. The goal is not maximum intensity, but safe and effective hair reduction over time.

Conclusion

It is normal for one area to need more laser hair removal sessions than another. Hair growth cycle, thickness, hormonal influence, skin type, and treatment settings all affect how quickly results appear. A personalised treatment plan and realistic expectations help achieve better long-term reduction while keeping the skin safe.