What Kind of Laser Does SEV Use?

When it comes to laser hair removal, the device matters. The type of laser, the manufacturer, and the settings your provider uses all determine whether the treatment will work for your skin to deliver results.

At SEV, the devices we use are FDA-cleared, dual-wavelength platforms trusted by dermatologists and aesthetic clinics across the U.S. Our nurses and providers customize every session to your skin tone, hair type, and treatment area. That means effective, comfortable treatments at transparent, flexible prices.

Here’s exactly what we use, how it works, and why it matters for you.

The short answer: Most SEV locations use the Candela GentleMax Pro, a dual-wavelength platform that combines Alexandrite (755 nm) and Nd:YAG (1064 nm) lasers. Some locations use the Cynosure Elite IQ, which operates on the same dual-wavelength principle. Both devices treat all skin tones and hair types, and both are used alongside the Zimmer Cryo 6 cooling system for a comfortable experience.

How Lasers Work to Remove Hair

A laser is a device that creates amplified light through a crystal, gas, liquid, or semiconductor. Lasers emit light at a single wavelength, which allows them to penetrate through the skin to a specific depth. The depth depends on the wavelength, and wavelength selection is one of the most important decisions in laser hair removal.

The laser light is attracted to the melanin (pigment) in the root of the hair. Once absorbed, the light converts to heat, which damages the follicle and prevents future hair growth. This process is called selective photothermolysis, because the energy targets melanin specifically, leaving surrounding tissue unaffected.

Only hairs in the active growth stage carry enough melanin to absorb the laser light. This is why laser hair removal takes at least 8 sessions to produce significant results. With each treatment, more active follicles are impacted, leading to lasting hair reduction that can be maintained with occasional touch-ups.

Understanding Laser Machine Terminology

When you research laser hair removal, you’ll encounter a mix of brand names, model numbers, and laser types. Here’s how to read them.

Manufacturer or brand: A handful of companies produce high-quality laser devices for aesthetic clinics. At SEV, our primary manufacturer is Candela, a leading, U.S.-based maker of aesthetic medical devices. Cynosure Lutronic is another trusted manufacturer whose devices are used at select SEV locations.

Models: Each manufacturer offers several device platforms. Candela’s lineup includes the GentleMax Pro (dual-wavelength), the GentleYag Pro (Nd:YAG only), and the GentleLase Pro (Alexandrite only). At SEV, we use the GentleMax Pro, the most versatile platform in the Candela family.

Types of lasers: Independent of brand or model, laser devices are categorized by the medium that amplifies the light — either a type of crystal or a semiconductor.

The three laser types still used for hair removal today are Alexandrite, Nd:YAG, and diode. Some providers use IPL devices, which are not true lasers and are significantly less effective. You can read more about the differences in our guide to laser hair removal machine types.

The Two Lasers SEV Uses and What They Do

Most SEV locations use the Candela GentleMax Pro, widely regarded as the most clinically validated dual-wavelength platform for hair removal. Some locations use the Cynosure Elite IQ, an equally capable dual-wavelength device from another leading manufacturer.

These devices are dual-wavelength, meaning they combine two distinct laser types in a single platform. Here’s what each one does.

Alexandrite (755 nm)

Alexandrite lasers emit light at 755 nanometers, a wavelength that is strongly absorbed by melanin. This makes Alexandrite highly effective for finer and lighter hair, and it works best on lighter to medium skin tones (Fitzpatrick types I–III).

Nd:YAG (1064 nm)

Nd:YAG lasers emit light at 1064 nanometers. The longer wavelength bypasses surface melanin and penetrates deeper into the follicle, making it the safest and most effective option for darker skin tones (Fitzpatrick types IV–VI). Nd:YAG is the gold standard for melanin-rich skin, where shorter wavelengths carry a higher risk of surface pigmentation changes.

Why Dual-Wavelength Matters

A dual-wavelength device allows SEV providers to use the right laser for each client’s unique skin tone in a single platform. The Candela GentleMax Pro and Cynosure Elite IQ are both dual-wavelength systems, which is a key reason SEV can offer effective, safe treatments for all skin tones.

Comfort During Treatment: The Zimmer Cryo 6

Both devices are used alongside the Zimmer Cryo 6, a professional cooling system that emits cold air as low as -22°F before, during, and after each laser pulse. This protects the skin’s surface and keeps each session comfortable from start to finish.

What to Expect During Your Laser Hair Removal Session at SEV

Your provider will begin with a consultation to assess your skin tone, hair type, and treatment history. They will select the appropriate laser setting — Alexandrite or Nd:YAG — and calibrate the device to your individual parameters.

The Zimmer Cryo 6 runs throughout the session, delivering a continuous stream of cold air to the treatment area. Most clients describe the sensation as mild warmth or a light snap.

Immediately after treatment, you may notice minor redness or sensitivity, which typically resolves within a few hours. For a full overview of what to expect before, during, and after your appointments, visit our complete laser hair removal guide.

Safety and Skin Tones

Laser hair removal is safe for all skin tones when the right device and settings are used. The Nd:YAG setting on both the GentleMax Pro and Elite IQ makes it possible to treat those with Fitzpatrick type VI skin effectively, without the high risk of surface pigmentation change.

Providers who use Alexandrite or diode-only devices on darker skin tones take on real risk. At SEV, providers are trained to select wavelengths based on each client’s Fitzpatrick type, and the dual-wavelength platforms they use make that possible.

For more on safety and what to watch out for, read our guides on laser hair removal safety tips and laser hair removal side effects.

Experience Advanced Laser Hair Removal at SEV

Want to see what kind of results you can achieve with FDA-cleared, dual-wavelength laser hair removal? Start your treatment journey on the best foot, with technology customized to you. As a bonus, we even offer the first treatment free for new laser hair removal clients.