Laser hair removal is a super permanent method and will be an investment in the long term. However, laser removal is pricey and not for every skin type. Laser hair removal might darken or lighten the affected skin, usually temporarily, Skin lightening primarily affects those who have darker skin.
So how exactly does laser work? Laser works by targeting the melanin (pigment) in the hair follicle. The heat generated by the laser damages the follicle so that it’s weakened and cannot produce hair. It’s important to keep in mind that lasers work only on actively growing hair, and not all hair follicles are in the active growth phase at the same time. That is why multiple sessions are required to achieve permanent hair reduction, although many people notice thinner growth after a couple of laser hair removal sessions.
Post care after lasers is best guided by your individual provider, but generally includes good sun protection with SPF 30 or above (e.g "Sun Supreme"), a hydrating moisturiser (e.g "Cellular Atelowater"), and gentle cleanser for irritation, peeling, or sun sensitivity (e.g "Collagen Washing Gel").So stick to those and you should be in the clear!. Anything else strange and be sure to reach out to your dermatologist.
If hyperpigmentation happens after laser hair removal. First of all, do not panic. Most of the time this type of hyperpigmentation is only temporary, lasting a month or two post-treatment. Some skin responds well to a lightening creams (e.g "Novawhite") or a sun protection with pigmentation correction (e.g "Sun Supreme"), while others fare better with topical scrubs (e.g "Collagen Scrub") and a light, regular chemical peels (e.g "GEN.Peel")