If you've looked into smoother skin without endless shaving, you've probably seen "IPL" and "laser" used as if they mean the same thing. They're related, but not identical. Here's a plain-English breakdown so you can decide what suits you.
How each one works
Laser hair removal uses a single, concentrated wavelength of light (for example 755 nm alexandrite, 810 nm diode or 1064 nm Nd:YAG). The light is absorbed by melanin in the hair, turns into heat and damages the follicle's ability to regrow hair.
IPL (intense pulsed light) uses a broad spectrum of light, roughly 500–1200 nm, passed through filters. It works on the same principle (melanin absorbs light, the follicle heats up), but the energy is spread across many wavelengths instead of focused on one.
In short, laser is a precise beam and IPL is a broader flash.
At home vs in a clinic
Clinic lasers and clinic IPL machines run at much higher energy and are operated by trained staff. At-home devices are deliberately lower-powered and typically include safety features such as a skin-tone sensor. In the US, home light-based hair removal devices are reviewed by the FDA as over-the-counter devices (510(k) clearance). Before buying any device, check that it has a clearance number you can look up in the FDA's public database.
FlashSmooth's Core handset is made under FDA 510(k) K230021.
Who each suits
Both methods rely on contrast between hair and skin:
- Best results: light to medium skin with dark brown or black hair.
- Limited or no results: blonde, red, grey or white hair (there's too little pigment to absorb the light).
- Darker skin (Fitzpatrick V–VI): most at-home IPL devices aren't suitable, because the skin itself absorbs the light and can burn. Some clinic lasers (especially 1064 nm Nd:YAG) are designed for darker skin, so speak to a qualified provider.
For a deeper look at skin-tone limits, see our skin-tone suitability guide and safety guide.
Results and timeline
Neither method removes hair instantly. Hairs grow in cycles, and light only affects follicles in the active growth phase, so you need repeated sessions:
- At-home IPL: typically weekly for the first 4–12 weeks, then occasional maintenance. Many users notice finer, sparser regrowth after several weeks.
- Clinic laser: usually 6–8 sessions spaced 4–8 weeks apart.
Is it permanent? The accurate term is long-term hair reduction. Most people need occasional top-ups, and results vary from person to person.
Cost
| At-home IPL | Clinic laser | |
|---|---|---|
| Upfront | about $100–$300 one-off | about $200–$500+ per area, per course |
| Ongoing | Replacement parts eventually, if needed | Top-up sessions |
| Convenience | Your schedule, your home | Appointments |
Comfort
Most people describe IPL as a warm snap. Laser can feel sharper at clinic energy levels. Cooling (an ice-cooled window, or a cooling gel afterwards) helps with both.
Which should you choose?
- Choose at-home IPL if you have a suitable skin and hair combination, want convenience, and are happy with gradual results.
- Choose a clinic laser if you have darker skin, light or fine hair, or want faster, more supervised results.
Whatever you pick, patch-test first, protect your eyes, and follow the manual. Buy FlashSmooth Core or browse our IPL guides.
This article is general information, not medical advice. If you have a skin condition, take photosensitising medication, or are pregnant, talk to your doctor before using any light-based device.