At-home IPL devices are built to be used without a professional, and in the US they must be FDA-cleared for over-the-counter use. Used correctly, on the right skin and hair type, most people experience nothing worse than mild, short-lived redness. Here's what to know.
Common, usually mild side effects
- Redness or warmth for a few hours after a session
- Mild tingling or a snapping sensation during flashes
- Temporary dryness or slight swelling around follicles
A cooling aloe gel and avoiding hot showers for a few hours usually help.
Less common, avoidable side effects
- Burns or blisters: usually from too high a setting, flashing the same spot twice, or using it on skin that's too dark or tanned
- Pigment changes (lighter or darker patches): more likely on tanned or darker skin
- Eye injury: never flash near the eyes, and wear protective glasses every time
Who shouldn't use at-home IPL
Don't use it, or check with a doctor first, if you:
- Have very dark skin (Fitzpatrick V–VI), or recently tanned skin or fake tan
- Are pregnant or breastfeeding
- Take photosensitising medication (e.g. some antibiotics, isotretinoin, St John's wort)
- Have epilepsy triggered by light
- Want to treat over tattoos, dark moles, broken skin, or active eczema/psoriasis
- Want to treat the eye area, inside the nose or ears, or the genital mucosa
See also our skin-tone suitability guide.
How to use IPL safely
- Patch test a small area at a low setting and wait 24–48 hours.
- Shave first (don't wax or epilate, because the root needs to be there).
- Exfoliate gently the day before, not right before — exfoliating gloves can help with prep.
- Start low and increase only if your skin tolerates it.
- One flash per spot, then move on.
- Protect your eyes every session with IPL safety glasses.
- Use SPF 30+ on treated skin and avoid sun exposure for at least 48 hours.
- Space sessions as the manual says (usually about weekly at first).
Check the device itself
Look for an FDA 510(k) number you can verify on accessdata.fda.gov, and a skin-tone sensor that blocks flashes on unsuitable skin. The FlashSmooth Core is manufactured under FDA 510(k) K230021 and has a built-in skin-tone sensor.
When to stop
Stop and see a doctor if you get blistering, pain lasting more than a day, or patches of lighter or darker skin.
Ready to see the device details? Buy FlashSmooth Core, or compare methods in our IPL vs laser guide.
General information only, not medical advice.