In laser hair removal, the light is converted into heat that travels down the hair follicle to reach the hair bulb. There it disrupts the blood vessels and the hair-growth environment where the laser does its work. The laser is most effective during the anagen (growth) phase of the hair, which is why permanent hair removal happens gradually.

Both the V4S and V8S are made for light to medium skin tones (tones 1-5), with the V8S standing out for its extra power that delivers faster and longer-lasting results. If your priority is quicker, more efficient hair removal, the V8S is our top pick. If your skin is more sensitive, we suggest the V4S.
The V6S handles a broader span of skin tones (tones 1-6), which makes it the best option for deeper skin tones. For people of African or Middle Eastern descent, we recommend the V6S.
For more help choosing the right device, click: HOW TO CHOOSE

The key difference between 810nm and 1064nm laser hair removal comes down to wavelength and where each one acts.
810nm Laser Hair Removal: this wavelength is strongly absorbed by melanin, the pigment found in hair follicles. It works best on lighter skin tones and lighter hair colors. The 810nm wavelength hits the hair follicle directly, heating it and effectively shutting down hair growth.
1064nm Laser Hair Removal: this wavelength penetrates deeper and is absorbed by melanin less. It suits every skin type, including darker skin tones, and can treat hair follicles that sit deeper. The 1064nm wavelength mainly targets the blood supply feeding the follicle, which makes it a flexible choice across a wide range of skin and hair types.
In short, 810nm laser hair removal leans toward lighter skin tones and lighter hair, while 1064nm laser hair removal works on all skin types and reaches deeper into the skin to treat a wider range of follicles.

Laser Hair Removal: this method relies on the selective photothermal effect, using a focused laser beam at a single wavelength. That focused beam reaches deep into the follicles, where melanin absorbs it specifically to create heat, damaging the follicles and stopping hair growth.
IPL Hair Removal: also based on the photothermal effect, IPL uses broad-spectrum light made of many wavelengths. Unlike a laser, IPL light isn't focused, and it can be absorbed by melanin both on the skin surface and in the follicles, producing thermal damage that prevents hair growth.
Key Differences:
A) Light Source:
Laser: a single-wavelength focused beam.
IPL: unfocused broad-spectrum light spanning multiple wavelengths.
B) Pain During Use:
Laser: mostly absorbed by melanin, so it causes less pain.
IPL: broad-spectrum light absorbed by several tissues, producing a stronger burning feeling.
C) Results and Duration:
Laser: usually needs fewer sessions, with comparatively clear and long-lasting results.
IPL: generally needs more sessions with shorter-lived effects, even at similar energy levels to a laser.
For more on the difference between Laser and IPL, click: LASER OR IPL

Each laser type has its own traits that suit particular hair removal needs:
Diode lasers are often favored for their precision and effectiveness. They're widely used in professional clinics and in at-home devices to target follicles with minimal discomfort. They're known for relatively quick treatment times and work well across many areas of the body.
YAG lasers are typically used in medical settings and are well suited to larger body areas.
Alexandrite lasers are common in professional settings, especially for smaller zones such as the face, underarms, and bikini line.

These wavelengths differ mostly in how they're absorbed, how effective they are, and what they target:
810nm Laser: the 810nm wavelength is strongly absorbed by melanin, the pigment in hair follicles, which makes it effective at targeting follicles, especially on lighter skin tones. 810nm lasers are valued for their precision and effectiveness, particularly on finer hair.
808nm Laser: much like 810nm, the 808nm wavelength is also strongly absorbed by melanin.
755nm Laser: 755nm is very effective for hair removal on lighter skin tones and can also treat finer hair. These lasers are known for their speed and efficiency at reducing hair growth.
In summary, all three wavelengths target melanin within the follicle, and the best choice depends on factors like skin type, hair color, and your treatment goals.

You can use the DermRays Laser Hair Removal Device on nearly the whole body, including the face (upper lip, chin, peach fuzz, etc.), arms, underarms, hands, chest, back, stomach, legs, feet, and the genital area (pubic, bikini, etc.).
*For the genital area, make sure the spot is clean and dry. Always do a patch test on the area before use and watch for redness, swelling, pain, itching, blisters, pigmentation changes, or fading after 2 hours. If any discomfort or adverse reaction shows up, stop right away and see a doctor. Be sure to clean and disinfect the area with 75% alcohol.
*Stay away from the eye area when treating the face.
*Don't use the laser on pigmented skin (birthmarks, moles, or tattoos), because the laser concentrates more energy on the pigment and could cause burns or skin damage.

Step 1: For the best results, cleanse, shave, and towel-dry the area.
Step 2: Plug in and hold the power button for 2 seconds to turn it on. A white light flashes with a beep, signaling "Standby" mode.
Step 3: Choose a suitable treatment level by pressing the power button once. Level 1 is recommended for your first use.
Step 4: Double-click the power button to unlock. The indicator turns green, showing the device is in "Ready" mode and can be used immediately.
Step 5: Place the treatment window against your skin and glide the device slowly, in time with each laser flash. A yellow light blinks; no button presses are needed during treatment.
Step 6: When you finish, press and hold the power button for 2 seconds to turn the device off.
*Safety Mechanism: If the device loses skin contact for 10 seconds, it switches to "Standby" mode. To continue, double-click the power button to unlock it again.

In SGS testing, the DermRays Laser Hair Removal Device reaches an average 82% and up to 97% hair reduction in 8 weeks. Most people notice less, finer, and softer hair after 4 weeks when they follow the recommended schedule.
Recommended usage frequency:
- 3 times per week for the first 2 weeks
- Twice a week for the next 2-3 weeks
- Once a month after that
*You can also adjust how often you use it based on how your skin tolerates it, to get the best results.
*Please be patient, since results can vary from person to person.

3 times per week for the first 2 weeks;
Twice a week for the next 2-3 weeks;
Once a month after that;
*You can also tune the frequency to your skin's tolerance to reach the best results.
*Please be patient, as individual responses may differ.

Not at all. The DermRays Laser Hair Removal Device is safe to use without laser goggles. It works with a single-wavelength laser. Unlike IPL, the steady light of a single-wavelength laser travels vertically into the skin. The tiny amount of refraction and diffusion the skin produces isn't enough to harm your eyes.
What's more, the device only flashes when the treatment window is fully in contact with your skin.

For most people, the treatment is practically painless.
The laser hair removal works by spreading heat across a metal plate beneath the treatment window, keeping the temperature under control.
Our Ice Cooling Technology adds comfort throughout the session and eases any discomfort tied to heat sensitivity.
In testing, the device's Skin Contact Temperature stays below 66℉ even after 30 minutes of use, ensuring a comfortable experience during hair removal.

The V4S and V8S both work well on light to medium skin tones (tones 1-5), with the V8S adding extra power for faster, longer-lasting results.
If you need coverage across a broader range, including tones 1-6, the V6S is the ideal pick. If you have a dark brown skin tone, we recommend the V6S.
*Each device ships with a User Manual that includes a skin and hair color chart, and you can also find it on our website. Compare it to confirm whether your skin tone falls within the listed color range.
*For safety, the skin tone sensor sounds an alarm if it detects an incompatible tone after the device first switches on. Rest assured, your skin stays unharmed as long as you follow the correct instructions.

No, there's no need to apply any gel before using the device. Once you've finished the treatment, just carry on with your usual routine.

Yes. Before each session, it's best to shave clean rather than pluck or wax. Shaving takes hair off the skin surface without touching the root. Leaving stubble can let the laser burn the hair, which makes it less effective and may cause skin trauma. Shaving lets the laser reach the hair root more accurately at full power.

Yes. When treating sensitive areas, we recommend taking extra care for your safety:
- Begin with the lowest setting;
- Run a patch test before treating the full area;
- Don't overlap passes within a single session;
- Most importantly, if you feel any discomfort during use, stop right away and consult a professional.