Matt Brown - The Laser Guy

The aesthetic laser market is flooded with hype, misleading specs, and straight-up lies designed to separate inexperienced buyers from their money. Here are the fifteen most common claims that simply do not hold up under real clinical scrutiny. “Our triple-wavelength diode (755 + 808 + 1064 nm) is better than any single-wavelength system” Combining three compromised diodes into one handpiece almost always delivers weaker performance on every skin/hair combination than dedicated single-wavelength medical-grade platforms. “All Q-switched Nd:YAG lasers are basically the same” Beam profile, true nanosecond stability, energy homogeneity, and power density vary massively. A $15k unit and a proper medical platform both say “Q-switched Nd:YAG” on the box, but one clears tattoos and pigment safely in 6–10 sessions, the other drags it out to 15–20+ with more side effects. “Our laser permanently removes white, grey, blonde, or red hair” Zero melanin = zero selective target. No current laser or...

Lasers and light-based devices (long-pulsed lasers, Q-switched/picosecond lasers, and intense pulsed light/IPL systems) are the foundation of modern aesthetic treatments – hair removal, tattoo removal, vascular lesions, pigmented lesions, and skin rejuvenation all depend on delivering targeted light energy safely and effectively. Cooling performance remains the single most important variable (after wavelength and pulse characteristics) that determines how high we can safely push fluence while protecting the epidermis. Most “Built-In Air Cooling” Is Ineffective The majority of Q-switched, picosecond, and many lower-cost long-pulsed systems advertise “built-in air cooling”. In reality this is almost always just a fan blowing room-temperature or warmer air (25–40 °C) at high speed. It feels cool due to evaporation but provides negligible or zero genuine heat extraction. True cryogenic air cooling requires a separate refrigeration unit delivering –10 °C to –35 °C through a dedicated hose. ...