How IPL actually works.
A pulse of light, the pigment in your hair, and the follicle underneath. That is the whole mechanism, and it explains both what IPL can do for you and who it will not work for.
Light, pigment, heat.
IPL stands for intense pulsed light. The handset fires a broad pulse into the skin, the pigment in your hair absorbs it, and that pigment turns the light into heat. The heat travels down the hair to the follicle it grew from and interrupts the growth cycle, so what grows back arrives finer and slower. Reduction builds session by session, and every follicle the light finishes stays finished. A top-up every few weeks catches the ones that were resting.
The light needs pigment to find. Dark brown and black hair carry plenty of it and respond well. Blonde, red, grey and white hair carry too little for the light to grab. Skin tone is not a barrier: it works on every skin tone, and you set the energy level yourself. Check your hair in the 60-second check before you buy anything.
Your follicles don’t share a schedule.
Only some follicles sit in the active growth phase where light can reach them. The rest are resting, and they ignore the flash completely. Two or three sessions a week catch a new set as they cycle in, which is why the first three weeks are the front-loaded ones. Hair reduction reaches 96% at two weeks on that schedule, then keeps building as the rest of the follicles come round. Results vary with hair color and treatment area.
Ten minutes a session is the real commitment, and it drops to once a week from week four. Miss a fortnight and you are not back to zero, but you have handed the resting follicles their window.
Light becomes heat. The plate takes it back.
Heat is what makes people abandon a device in week three. The Pearl 01 chills its contact plate to 43°F, so each pulse lands on skin that is already cold and you feel a short warmth rather than a snap. Nine levels let you settle at the highest setting you can hold every week, and staying there matters more than any single session.
Wear the included eye protection. Patch test 24 hours before your first session. Keep the window away from tattoos, dark moles, and recently sun-exposed skin.
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