Laser Technician Exam 2025/2026 | 150+ Questions | Laser Physics, Hair Reduction, Skin Rejuvenation & Safety Protocols

This advanced study guide contains 150+ fully answered and up-to-date questions for the Laser Technician Certification Exam 2025/2026, covering all essential topics required for certification and clinical practice. With accurate explanations and regulatory references, this document serves as a complete review for laser technicians, estheticians, and medspa professionals preparing for board exams or state licensing (e.g., TDLR, Arizona BRC). Topics covered include: Laser physics & core principles: wavelength, frequency, joules, fluence, pulse duration, power density, selective photothermolysis Laser-tissue interaction types: absorption, scattering, transmission, reflection Hair removal science: hair anatomy, growth cycles (anagen, catagen, telogen), bulb & bulge targeting, TRT & TDT Laser types & wavelengths: Alexandrite (755nm), Diode (810nm), ND:YAG (1064nm), CO₂ (10600nm), ER:YAG (2940nm), IPL/BBL devices Skin types & chromophores: melanin, oxyhemoglobin, water, porphyrins; Fitzpatrick scale I–VI Treatment techniques: spot size, compression, cooling methods, proper pulse width, spot testing, contraindications Safety protocols & regulations: laser eyewear, NHZ (Nominal Hazard Zone), OSHA, FDA, BRC (Arizona), plume contaminants Skin conditions & pathologies: acne, rosacea, melasma, actinic keratosis, pseudofolliculitis barbae Professional practice & terminology: consent forms, adverse reaction management, client prep/post-care, laser room setup Ideal for: Aspiring or certified laser technicians seeking structured exam prep Aesthetic students enrolled in laser programs (e.g., 40-hour apprenticeships or advanced CEU) Medspa professionals and RN/LPNs expanding into laser services Dermatology or cosmetic clinic staff refreshing certification knowledge Formatted in easy-to-follow Q&A layout, this guide is optimized for last-minute revision and deep conceptual understanding of light-based treatments in aesthetic practice. Keywords: laser certification exam, laser physics, hair reduction, skin rejuvenation, selective photothermolysis, TRT, TDT, IPL, BBL, ND:YAG, Alexandrite, Diode laser, Fitzpatrick scale, chromophores, OSHA, FDA laser, plume safety, melanin absorption, thermal relaxation time, pseudofolliculitis barbae, actinic keratosis, rosacea, acne, CO2 laser, ER:YAG, Joules, fluence, pulse width, power density