Types of Laser Hair Removal: Devices & Factors To Consider
Types of Laser Hair Removal Explained: Key Takeaways
- Different laser machines use different wavelengths, and each one is better suited for specific skin tones and hair types
- Laser hair removal works best on dark, coarse hair because the laser targets melanin
- The most effective laser hair removal treatment depends on the right match of laser type, skin tone, hair color, and area being treated
If you have blonde hair, you might expect the same laser hair removal results as your brunette bestie, but not all laser devices treat hair the same way.
Some machines struggle to spot lighter hair, which can mean slower results or patchy progress from laser hair removal shedding.
Luckily, technology is catching up.
A recent study looked at a combo laser that uses Alexandrite and Nd:YAG wavelengths, and the results? Pretty impressive.
With over 2,000 patients, it proved to be safe across a wide range of skin tones and effective.
So, if your hair’s on the lighter side, don’t stress. With the right laser, you’re still in for smooth, lasting results.
In this guide, we will:
- Cover the main types of laser hair removal machines to get smoother skin
- Explain how your hair color and texture can affect your results
- Help you figure out which laser is right for you and where to find the best laser hair removal devices (hint: Laser by Aleya)
Types of Laser Hair Removal Machines
Different lasers use different wavelengths, which means some work better on certain skin tones or hair types than others.
So, what types of laser hair removal machines are actually used?
These are the four you’ll see most often in clinics today.
1. Alexandrite Laser
Best for: Light to olive skin tones
Wavelength: 755 nm
The Alexandrite laser is one of the most popular types of laser hair removal machines for light to medium skin tones with dark hair.
It’s fast, powerful, and delivers great results on both fine and coarse hair.
It uses a wavelength that’s easily absorbed by melanin, making it great at targeting hair follicles quickly and precisely.
Thanks to its speed, it’s especially popular for treating larger areas like the legs or back.
What makes it a favorite:
- Fast treatment times
- Ideal for fair to medium skin
- Great results on fine or coarse dark hair
Keep in mind: It’s not safe for darker skin tones due to the risk of pigmentation changes.
2. Diode Laser
Best for: Light to medium-dark skin tones
Wavelength: 800–810 nm
The diode laser penetrates deeper into the hair follicle, making it a strong choice for thicker, coarser hair.
It’s also safe for a wider range of skin tones.
This type of laser hair removal machine is a go-to for spots like the chest, back, and legs; areas where you need serious power, but still want to play nice with your skin.
Here’s the appeal:
- Works well on many skin types
- Effective for coarse, dense hair
- Covers large areas efficiently
Consider this: Some clients report slightly more discomfort compared to Alexandrite lasers.
3. Ruby Laser
Best for: Very fair skin with dark hair
Wavelength: 694 nm
The Ruby laser was the first FDA-approved type of laser hair removal machine.
While it’s not widely used today, it still has a place in the history of cosmetic treatments.
It’s most effective for pale skin and fine dark hair, but due to its limited safety range and slower speed, it’s now considered outdated.
Why it’s rarely used:
- Slower treatment times
- It’s been upstaged by the newer, more sophisticated models
- It absorbs melanin easily, raising pigmentation risks for darker skin
4. Nd:YAG Laser
Best for: Darker skin tones (Fitzpatrick IV–VI)
Wavelength: 1064 nm
When it comes to treating deeper skin tones, the Nd:YAG is one of the safest and most reliable types of laser hair removal machines.
Its long wavelength penetrates deeper into the skin, avoiding surface pigment.
By bypassing surface pigment and targeting the follicle’s blood supply, it reduces the risk of burns, hyperpigmentation, and other side effects.
It’s great for deeper complexions, especially when lasers like Alexandrite are too easily absorbed by skin pigment.
Why it’s a go-to:
- Safe and effective for dark skin
- Minimal risk of pigment issues
- It can also be used for vascular lesions and tattoo removal
Just a heads-up: It’s not so great with fine or light-colored hair, as it’s a bit picky about pigment.
Hair Types: How Your Hair Color Impacts Laser Hair Removal
Laser hair removal is a game-changer for ditching razors and wax, but it’s definitely not one-size-fits-all.
If you’re thinking about getting treated, your hair color plays a starring role in how soon you’ll see results, and how long they’ll stick around.
Laser hair removal works by targeting melanin or the pigment in your hair.
Basically, the darker the hair, the more heat the laser can generate to damage the follicle and stop future growth.
Here’s how different hair colors stack up when it comes to laser:
- Black or dark brown: Responds quickly and effectively
- Medium brown: Still effective but may need more sessions
Blonde, red, and gray hairs? These lighter hairs contain little to no melanin.
Without enough pigment, the laser can’t generate enough heat in the follicle to stop growth.
That said, a recent study found that combining multiple types of laser hair removal machines, like Alexandrite, diode, and Nd:YAG, can significantly improve results, even for lighter or finer hair.
How Hair Thickness Influences Results
Hair thickness determines how easily the laser energy can travel down the hair shaft and reach the root.
Thicker, coarser hair absorbs more energy, making it easier to destroy the follicle and stop regrowth.
That’s why areas like the underarms, bikini line, or legs often respond faster than spots with fine “peach fuzz,” like the upper lip or cheeks.
Coarse hair? Lucky you, because most types of laser hair removal machines are designed to target it easily, which usually means fewer sessions.
Fine hair? You might need a few extra visits, and results can still vary unless your technician uses advanced settings or a type of laser hair removal machine specifically suited for finer textures.
A 2024 review even highlighted that dialing in the right wavelength, pulse duration, and energy level is key for getting consistent, long-term results on finer strands.
Finding Your Perfect Match: How To Choose the Right Type of Laser Hair Removal Device
Let’s be real: laser hair removal isn’t a one-button fix.
What works perfectly for one person might not do much for another. Skin tone, hair color, and texture all matter.
So, before you commit to a package, here’s how to find the right type of laser hair removal device for your unique combo.
1. Start With Your Skin Tone
Your skin tone sets the stage, helping decide which laser plays nice and which should sit out.
- Fair to light skin? Alexandrite or diode lasers are usually the best match.
- Medium to deeper skin tone? Nd:YAG is your go-to. It goes deeper and skips over surface pigment, which helps prevent burns or discoloration.
This is why knowing which type of laser hair removal machine is best for your skin tone is so important.
2. Check Your Hair Color
Lasers are drawn to pigment like moths to a flame.
The darker and coarser your hair, think black or deep brown, the easier it is for the laser to lock on and do its job.
Some types of laser hair removal machines are better at detecting and treating lighter hair than others, so matching the right one to your hair color can make a big difference.
3. Consider Hair Thickness
Thicker, coarser hair means it’s easier for the laser to zap.
- Coarse hair: Most types of laser hair removal machines do well here, especially on areas like the legs, back, or underarms.
- Fine or peach fuzz hair: This is trickier. You might need more advanced laser tech or consider electrolysis for more consistent results.
4. Match the Laser to the Body Area
Different areas call for different laser strengths. If you’re treating large zones like your legs, chest, or back, you’ll want a type of laser hair removal machine that’s fast and efficient, like diode or Alexandrite.
For smaller or more delicate spots like the face, underarms, or bikini line, go with something more precise and gentler, like the Nd:YAG.
Common Myths About Laser Hair Removal
When it comes to laser hair removal, there’s no shortage of buzz and a fair share of myths.
Let’s clear the air so you know what’s real and what’s just marketing fluff.
Myth 1: Laser Hair Removal Is Permanent
We hate to burst your bubble, but laser hair removal isn’t permanent.
You’ll likely see a major decrease in regrowth, and hair that does come back is often finer and lighter.
But hormonal changes, medications, or genetics can trigger new growth over time.
Electrolysis is your best bet for permanent hair-free results.
Myth 2: All Lasers Work the Same
Not even close.
Different lasers use different wavelengths, pulse durations, and energy levels, and each one is better suited to certain skin tones and hair types.
What works wonders on fair skin with dark hair might do very little (or irritate) on deeper skin tones or finer hair.
That’s why choosing the right laser technology matters just as much as choosing a qualified provider.
Myth 3: Laser Hair Removal Works on Every Hair Color
We wish! Laser hair removal needs pigment to work, which means it’s most effective on dark hair.
Blonde, red, gray, and white hairs have very little melanin, which makes them hard for lasers to detect and treat effectively.
If your hair falls into the lighter range, you’ll likely need advanced laser technology, or better yet, electrolysis for reliable results.
Find the Best Laser Hair Removal Device at Laser by Aleya
At Laser by Aleya, we’re all about using technology that’s safe, effective, and actually delivers results.
That’s why we use the Lumenis LightSheer Diode, a trusted laser system known for both its power and precision.
This laser is especially effective on darker, coarser hair and works well across a range of skin tones.
It penetrates deep enough to target the hair follicle while keeping your skin comfortable throughout the process.
Aleya is a licensed laser specialist who can assess your skin, hair, and goals, and then recommend the safest, most effective plan for you.
She’ll walk you through what to expect, how many sessions you’ll likely need, and what kind of results are realistic for you.
Aleya’s tip: Don’t be shy! Ask Aleya what kind of laser she uses.
She’ll be more than happy to explain why it’s the best match for your skin and hair.
Types of Laser Hair Removal: FAQs
What are the most common types of laser hair removal devices found at clinics?
The most common laser hair removal devices used in clinics are Alexandrite, diode, and Nd:YAG; each designed to work best with specific skin tones and hair types.
Is unwanted hair growth a possible side effect of laser hair removal?
Yes, laser hair removal can cause unwanted hair growth, but only in certain cases.
If laser hair removal is done by someone untrained or on someone who isn’t a good candidate for treatment, it can sometimes trigger unexpected side effects, including more hair in nearby areas.
That’s why seeing a licensed, experienced provider matters.
Is it alright to undergo laser hair removal and electrolysis during the same period?
No, you can’t do laser hair removal and electrolysis in the same area at the same time.
But once you’ve wrapped up your laser sessions, electrolysis is a great way to tackle any stubborn stragglers.
