Laser Hair Removal: How Many Sessions Do You Need?
By Ms So98 Hair Salon · 21 May 2026
Quick answer
Laser hair removal usually needs a course of several sessions (often around 5+, spaced weeks apart) because hair grows in cycles and laser only treats hairs in their active growth phase. Our packages — like underarm $80 for 10 sessions or 5-session leg/arm bundles — are built around this for the best, longest-lasting results.
One laser session won't remove hair permanently — and that's normal. Understanding why helps you plan and get the best result.
Here's how it works at Ms So98 Hair Salon in Phnom Penh.
Why hair grows in cycles
Your hair is always at different stages: growing, resting and shedding. Laser only effectively targets hairs in the active growth phase. Since only a portion are 'active' at any time, you need several spaced sessions to catch them all across cycles.
How many sessions per area
Most areas need a course of several sessions a few weeks apart, then occasional maintenance. That's why we offer packages: an underarm course is $80 for 10 sessions (with free massages), and legs and arms come in 5-session bundles that lower the per-session cost.
Getting the best results
Keep to your session schedule, shave (don't wax or pluck) between sessions, avoid sun on the area, and follow aftercare. Results build steadily — you'll notice slower, finer regrowth as the course progresses.
FAQ
How many laser sessions do I need?
Typically a course of several sessions spaced weeks apart, plus occasional top-ups. Our packages (e.g. underarm 10 sessions, legs/arms 5 sessions) are designed for this.
Why can't one session remove all the hair?
Laser only treats hairs in their active growth phase, and only some are active at once — so multiple sessions are needed to catch them across cycles.
Should I shave or wax between sessions?
Shave between sessions — don't wax or pluck, as the root needs to be present for the laser to work.
How much is laser at Ms So98?
Underarm $80 for 10 sessions (with 2 free massages), legs $30–$50/session ($100–$200 for 5), arms $15/session ($50 for 5), bikini $20.
Book at Ms So98 Hair Salon
Phnom Penh · near Aeon Mall 2 (Sen Sok) · Khmer · English · 中文.