What should you know about tunable diode laser?

A diode laser produces concentrated light at a selected wavelength. A tunable device can adjust settings within its available range, allowing a practitioner to balance target absorption, depth, energy, and cooling. Hair pigment, blood vessels, or other tissue components may absorb the light depending on the system and purpose. The term describes technology, not one single treatment. Ask which wavelength and handpiece are being used, because the same platform may have different clinical applications. Read more about [Diode Laser](/technology/diode-laser/).

Tell the practitioner about recent tanning, pigment changes, medicines that increase light sensitivity, active skin infection, cold sores, scarring tendency, and pregnancy if relevant. For [Laser Hair Removal](/treatments/laser-and-energy/laser-hair-removal/), instructions may include avoiding waxing or plucking before sessions so the follicle remains available for targeting. After treatment, protect the area from sun, avoid picking or harsh products, and use the recommended cooling or cleansing routine. Several sessions may be needed when the target grows or changes in cycles.

Ask for prompt review if blistering, marked swelling, increasing pain, spreading redness, pus, or a new light or dark patch develops after treatment. Urgent care is appropriate for facial swelling with breathing difficulty or widespread symptoms. A temporary warmth or mild redness may occur, but worsening symptoms should not be ignored.

Ask what target is being treated, which wavelength and cooling method will be used, how your skin tone changes the plan, what preparation is required, and what signs would warrant a review.