The most consequential choice in laser hair removal happens before the first pulse fires. Here is how alexandrite and Nd:YAG lasers differ at the level of physics, and why that matters for darker skin tones.
August 9, 2026 / By Ezra Caulfield / 5 min read
Melasma is one of the most common reasons patients book laser consultations in Beverly Hills, and one of the easiest conditions to make worse with the wrong device. Here is a mechanism-first look at where lasers fit, and where they do not.
August 9, 2026 / By Damaris Okonjo
Fitzpatrick IV to VI patients are often told certain lasers are off limits. The truth is more precise: it comes down to melanin absorption curves, pulse duration, and cooling, not marketing names.
August 9, 2026 / By Ezra Caulfield
Beverly Hills practices market picosecond devices as a generational leap over older Q-switched lasers. The physics supports some of that claim, but not all of it. Here is what the shorter pulse actually does, and where the older technology still holds its own.
August 8, 2026 / By Ezra Caulfield
Beverly Hills consult rooms are full of device names. The number that actually matters is measured in nanometers, and it determines who can be treated safely.
August 8, 2026 / By Ezra Caulfield
Three numbers, 755, 810, and 1064, determine more about your laser hair removal outcome than any brand name on the machine. Here is the physics behind the choice, and why skin tone changes the math.
August 8, 2026 / By Ezra Caulfield
Beverly Hills clinics increasingly market picosecond devices as the gold standard for ink clearance. Here is what the physics supports, what remains unproven, and how to compare quotes intelligently.
August 7, 2026 / By Ezra Caulfield
Beverly Hills patients span every skin tone, yet laser hair removal is still often marketed as one procedure. The physics say otherwise. Here is how 755 nm and 1064 nm devices actually differ, and why the choice matters more than the brand name on the machine.
August 7, 2026 / By Ezra Caulfield
§ 04 · Frequently Asked
Depends on the concern. Pigment (sun spots, melasma) responds to picosecond and Q-switched lasers. Redness and broken vessels respond to IPL, KTP, and pulsed-dye lasers. Texture and wrinkles respond to fractional CO2 or erbium. Hair removal uses Alexandrite (lighter skin), Diode (medium), or NdYAG (darker). A dermatologist consultation identifies the right device.
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