Patients ask this question every single day: “Why should I pay for laser when I can just shave?” Here is the answer, backed by simple math, that you can give them in under a minute — and the longer version worth reading if you are the one making the equipment purchase decision.
The 30-Second Patient Answer
Shaving cuts hair at the surface. It lasts 1-3 days. Over 20 years, you spend roughly 1,800 hours shaving. Waxing pulls hair from the root. It lasts 3-6 weeks. Over 20 years at $60 per session, you spend $14,400-24,000. Electrolysis destroys one follicle at a time. It is truly permanent — but a full leg takes months of weekly sessions. Laser destroys hundreds of follicles per pulse. Six to eight sessions over 6-12 months. Then you are mostly done. Lifetime cost: $600-2,400 depending on the area. The cheapest option over a lifetime is laser. By a lot.
The Numbers in Detail
| Method | Cost Per Session | Sessions Needed | Results Duration | 20-Year Cost |
|---|---|---|---|---|
| Shaving | $0.50 (razor + cream) | Every 2-3 days | 1-3 days | $3,650 + 1,800 hours |
| Waxing (salon) | $50-100 | Every 4-6 weeks | 3-6 weeks | $12,000-24,000 |
| Waxing (at home) | $10-20 | Every 4-6 weeks | 3-6 weeks | $2,400-4,800 |
| Epilator | $50-100 (device) | Every 2-4 weeks | 2-4 weeks | $50-100 + time |
| Electrolysis | $50-150/hour | 15-30 sessions per area | Permanent | $3,000-10,000+ per area |
| Professional Laser | $100-300 per area | 6-8 sessions | Permanent reduction (80-90%) | $600-2,400 per area |
Why Waxing Is More Expensive Over Time
A typical woman waxing her legs, underarms, and bikini area spends about $120 per session, every 5 weeks. That is roughly $1,250 per year. Over 20 years: $25,000 — and she still has hair growing back every month. A full laser course for the same three areas costs about $2,000-3,000 total. After the initial course, annual maintenance (1-2 sessions per year at $100-200 each) keeps regrowth minimal. The laser patient spends $3,000-5,000 over 20 years — roughly $20,000 less than the waxing patient — and never has to schedule a waxing appointment again.
Where Electrolysis Still Makes Sense
Electrolysis is the only FDA-approved method for true permanent hair removal — laser is approved for “permanent reduction.” For small areas with very light hair (upper lip with blonde hair, for example), electrolysis can be the right choice because the hair lacks enough melanin for laser to target effectively. For large areas, electrolysis is impractical — treating a full leg one hair at a time would take years of weekly sessions.
What About Home IPL Devices?
Home IPL devices cost $200-500. They produce 30-40% reduction with consistent use over 12+ weeks. For someone on a tight budget who is not in a hurry, a home IPL is a reasonable starting point. But many home IPL users eventually seek professional laser treatment because they want faster, more complete results. The home device was their research phase — not their final answer. Smart clinics sell home IPL devices at retail and convert those customers to professional treatments when they are ready for real results.