How laser hair removal works
Devices target melanin in the hair shaft, generating heat that damages the follicle. Because skin also contains pigment, device choice and settings must match your skin type to reduce burns and post-inflammatory hyperpigmentation.
Fitzpatrick skin types matter
Lighter skin with dark hair often responds well; darker skin requires devices and parameters designed to protect epidermal pigment. Be honest about recent sun exposure or tanning—tanned skin increases complication risk.
Multiple sessions are normal
Hair grows in cycles; only follicles in the active phase are fully affected at each visit. Expect a series spaced weeks apart, then maintenance.
Patch tests and consent
Reputable programs may perform test spots or adjust fluence after reviewing your history of keloids, herpes outbreaks, or isotretinoin use. The American Academy of Dermatology summarizes what patients should know about laser hair removal basics.
Before and after care
Avoid plucking or waxing before treatment as directed; shave instead. Afterward, protect skin from sun and follow cooling instructions.
When to pause
Active infection, open wounds, or pregnancy are typical reasons to delay elective laser sessions—your clinician will advise.
Written by Maryam Ajami, MD
Head of Cosmetic Medicine
Maryam Ajami, MD, leads cosmetic medicine at Trita. With over ten years of clinical experience, training in otolaryngology (head and neck), and leadership roles in medical aesthetics in Ottawa—including Medical Aesthetic Team Lead at Victoria Park Medispa and Medical Aesthetician Manager at Kanata Skin Clinic—she focuses on safe, medically supervised aesthetic treatments and natural-looking results.
