What should you know about alexandrite and diode laser?

The two technologies produce different wavelengths and interact with skin and hair pigment differently. The label alone does not predict comfort, effectiveness, or safety because pulse duration, energy, spot size, cooling, operator technique, and the contrast between hair and skin also matter. Coarse, dark hair generally provides a clearer pigment target than fine, pale, grey, or white hair. A clinician should examine the actual treatment area rather than choosing from hair colour or ethnicity alone.

Before booking, disclose recent sun or artificial tanning, medicines and supplements, active eczema or infection, a history of cold sores in the area, and previous burns or pigment alteration after light-based procedures. Do not wax, tweeze, or thread the planned area during the interval specified by the clinic. Shave only according to their instructions, and do not conceal a tan because it can change treatment decisions.

Once treated, cool the skin as instructed and use uncomplicated, fragrance-free care. Avoid scratching, exfoliating, or applying strong active products until irritation has settled. Minimise sun exposure and use the recommended sun protection on exposed sites. Hair may release gradually; pulling it out does not speed the process and can irritate the follicle openings.

Mild redness, warmth, and swelling centred on hair follicles may follow treatment. Call the provider without delay if discomfort intensifies, blisters appear, the surface becomes raw, or a sharply lighter or darker area develops. Spreading redness, pus, fever, or worsening tenderness may indicate infection and warrants medical assessment. Breathing trouble, swelling of the lips or tongue, collapse, or a rapidly progressing reaction requires emergency care.

Request the exact device type and the clinical reason for choosing it for your skin and hair. Ask whether a test area would help, how your skin will be cooled, and which response would prompt a setting change. Discuss realistic reduction for your hair colour and texture, the role of hormonal hair growth, the plan for maintenance, and who to contact outside normal clinic hours if a burn-like reaction develops.