K12 Diode Laser Hair Removal Machine | Lefis

The K12 uses an 808 nm diode laser (optional 808+1064+755 nm) to target melanin in the follicle. By selecting an adequate pulse width (1–400 ms) and energy range (e.g., 5–120 J / 5–178 J) with strong epidermal cooling (water + air + semiconductor + sapphire), heat is delivered to the root to disable hair growth while protecting the surrounding skin.

808 nm: the all-rounder for most skin types and medium-to-dark hair. 755 nm (optional): helpful for lighter, finer hairs on lighter skin. 1064 nm (optional): preferred on deeper skin tones because it interacts less with epidermal melanin. Your clinic will set pulse duration/fluence to suit sensitive areas and darker or tanned skin.

Yes. Interchangeable spot sizes (e.g., 10×10/10×20 mm; 12×10–35 mm) let providers work efficiently on large areas like legs and arms, and carefully on sensitive areas like the face or bikini line. The 1–10 Hz repetition rate supports fast passes to achieve even coverage.

Most patients need a series of visits spaced a few weeks apart because follicles cycle through growth phases. Session counts vary with hair thickness, density, body site, and skin types. Your provider will plan a personalized treatment course and aftercare to reach the best results.

Primary use is laser hair removal, but 808 nm energy and long pulse widths can be configured by trained professionals for light skin rejuvenation routines (tone/texture appearance). For more dramatic improvement in wrinkles, acne/scars, or pigment, clinics often use dedicated resurfacing/IPL/other devices or combination protocols.

Double contact cooling (sapphire tip + multi-stage cooling) keeps the surface fresh during passes. High laser power (up to 1600–2400 W options) allows lower fluence per shot with adequate pulse duration—useful for sensitive areas. Quality Lasertel bars and handpiece recognition help maintain uniform output over 30,000,000 shots, backed by a 2-year laser warranty.

Shave the treatment area 24 hours prior. Avoid tanning and heavy sun exposure for 1–2 weeks. Pause epilators and waxing so follicles remain intact. Discuss any active inflammation, medications, or recent acids/retinoids with your clinician during consultation so parameters can be safely determined.

Most describe quick warmth or a snap. Strong contact cooling, proper pulse width, and calibrated fluence help keep sessions tolerable. For very sensitive areas, clinics may apply a topical cream. The fast 1–10 Hz mode shortens chair time without sacrificing coverage.

Clinicians adjust pulse duration (longer for higher melanin), fluence, spot size, and frequency to balance follicle heating and epidermal safety. With optional 1064 nm, they can treat dark complexions more conservatively. After photos and response checks guide incremental optimization across visits.

Keep the treated area cool and clean, use gentle skin care, and avoid heat workouts or hot showers the first day. Use broad-spectrum SPF on exposed sites to protect new skin. Don’t wax or tweeze between sessions; shaving is fine. Follow your clinic’s timing so cycles align and results can improve steadily.