For centuries, people have been looking for ways to remove unwanted hair, from ancient sugaring and threading methods to modern shaving, waxing, and depilatory creams. While these methods work, they’re often temporary, time-consuming, and can cause skin irritation or ingrown hairs.
Laser hair removal has revolutionised the process. By using concentrated light energy to target and damage hair follicles, this treatment offers long-lasting hair reduction and smoother skin with far less daily maintenance.
Today, it’s one of the most popular cosmetic procedures globally, valued for its speed, precision, and effectiveness. But before booking your first session, it’s important to understand how it works, who it’s best for, what risks are involved, and how to prepare for and care for your skin afterward.
This guide covers all of that and more, so you can make an informed decision.
What Is Laser Hair Removal?
Laser hair removal is a non-invasive cosmetic procedure that uses a concentrated beam of light to target unwanted hair. The pigment (melanin) in the hair absorbs the light, which is converted into heat. This heat damages the hair follicle, reducing or delaying future hair growth.
Although it is often marketed as “permanent hair removal,” the more accurate term is long-term hair reduction. Most people experience significant hair thinning after a series of treatments, but some regrowth can occur over time.
Popular treatment areas:
- Face (upper lip, chin, sideburns, jawline)
- Legs
- Underarms
- Bikini and Brazilian areas
- Back and shoulders
- Chest and abdomen
- Arms and hands
- Neck and hairline
Areas to avoid:
- Eyelids and surrounding skin
- Directly over tattooed areas
How Laser Hair Removal Works?
To understand why multiple sessions are needed, it’s important to know the hair growth cycle:
- Anagen phase (growth stage): The hair is actively growing and attached to the follicle. This is the only phase where laser hair removal is effective because the follicle is still connected to the hair shaft.
- Catagen phase (transitional stage): Hair stops growing, and the follicle begins to shrink.
- Telogen phase (resting stage): Hair eventually falls out, and the follicle remains dormant for a time.
Since not all hairs are in the anagen phase at the same time, multiple sessions spaced weeks apart are required to treat all active follicles.
Types of lasers used in clinics:
- Alexandrite laser: Works quickly and is effective for light-to-olive skin tones.
- Diode laser: Penetrates deeper, good for both light and medium skin tones.
- Nd:YAG laser: Safer for darker skin tones; penetrates deeply with less risk of pigmentation changes.
- Ruby laser: One of the earliest types, now less common but effective for very light skin.
At-home devices (usually IPL – Intense Pulsed Light) use a similar principle but are less powerful, meaning results are slower and less dramatic.
Benefits of Laser Hair Removal
Laser hair removal offers multiple advantages over traditional methods:
- Precision: Targets dark, coarse hairs without damaging surrounding skin.
- Speed: Small areas (like the upper lip) can be treated in under a minute; large areas (like the back) can take up to an hour.
- Long-term savings: While the upfront cost is higher, you’ll save on razors, wax strips, and salon visits over the years.
- Reduced ingrown hairs: Encourages straighter hair regrowth, making ingrowns less likely.
- Smoother skin texture: No stubble or regrowth shadow between sessions.
- Time efficiency: Less time spent on hair removal in your daily routine.
Risks and Side Effects
Laser hair removal is generally safe when performed by a qualified professional, but side effects can occur.
Common temporary effects:
- Redness (similar to a mild sunburn)
- Swelling around hair follicles
- Mild tenderness
Less common but possible risks:
- Burns or blisters (usually from improper settings or inexperienced technicians)
- Hyperpigmentation (dark spots) or hypopigmentation (light spots)
- Scarring (rare)
- Paradoxical hypertrichosis (rare stimulation of hair growth in treated areas)
Minimising risks:
- Choose an experienced, licensed provider
- Follow pre- and post-care instructions carefully
- Avoid tanning before and after treatments
- Use the correct laser type for your skin tone
Who is the Ideal Candidate?
Laser hair removal works best on people with light skin and dark, coarse hair due to the strong contrast, which helps the laser detect and target the hair pigment.
However, newer technologies like the Nd:YAG laser allow treatment for darker skin tones, though more sessions may be needed.
Good candidates:
- Individuals with unwanted facial or body hair
- Those prone to ingrown hairs
- People with conditions like hirsutism or PCOS that cause excessive hair growth
Not suitable for:
- People with very light blond, white, grey, or red hair (low pigment makes targeting difficult)
- Anyone with active skin infections or certain chronic skin conditions
- Those prone to keloid scars
- People taking medications that increase photosensitivity (like isotretinoin)
Preparing for Your Session
Proper laser hair removal preparation improves safety and results. Follow these steps:
4-6 weeks before treatment:
- Avoid sun exposure, tanning beds, and self-tanners.
- Stop waxing, threading, or plucking (the root must remain for the laser to target).
24-48 hours before treatment:
- Shave the area thoroughly (avoid electric razors that leave stubble).
- Avoid applying lotions, deodorant, or makeup to the treatment area.
Other important prep tips:
- Inform your provider about your medications and medical history.
- Avoid exfoliating acids or retinoids for at least 2 days before treatment.
- Wear loose, comfortable clothing on treatment day.
What to Expect During Treatment
If it’s your first session, your technician will likely start with a patch test to determine the right laser settings for your skin and hair type.
Typical treatment steps:
- Cleansing: The area is cleaned to remove any oil, sweat, or skincare products.
- Marking the treatment zones: Some clinics draw grid lines to ensure no spots are missed.
- Eye protection: You and the technician will wear protective eyewear to block laser light.
- Cooling: A cooling gel or built-in cooling device is used to protect the skin and reduce discomfort.
- Laser application: The handheld device is pressed against the skin, emitting pulses of laser light.
- Post-treatment soothing: The skin is cooled with ice packs or cooling pads, and soothing cream may be applied.
Pain level:
Most people describe it as a quick snapping sensation, similar to a rubber band flicking against the skin, with mild warmth. Sensitive areas like the bikini line may feel more intense, but cooling technology helps minimise discomfort.
Aftercare & Recovery
Proper laser hair removal aftercare is essential for preventing irritation and optimising results.
First 24-48 hours:
- Avoid hot showers, saunas, and heavy sweating.
- Keep the area clean and dry.
- Apply aloe vera gel or a fragrance-free moisturiser to soothe the skin.
- Avoid makeup on the treated area (if on the face).
First week:
- No tanning or sun exposure, use a broad-spectrum SPF 30+ daily.
- Avoid harsh exfoliants, acids, or retinoids.
- Resist the urge to scratch or pick at the area.
Hair shedding phase:
- Around 1-3 weeks post-treatment, treated hairs will fall out naturally; this is normal and a sign the treatment worked.
Session Frequency & Costs
Because hair grows in cycles, multiple treatments are necessary to target every hair in its growth phase.
Average treatment schedule:
- Face: Every 4-6 weeks
- Body: Every 6-8 weeks
- Maintenance: 1-2 sessions annually after completing the initial course
Number of sessions needed:
- Most people require 6-8 sessions for optimal reduction.
Cost factors:
- Treatment area size: Larger areas, like legs, cost more than smaller areas like the upper lip.
- Clinic location: Urban centres often charge more.
- Laser type: Advanced laser machines may cost more, but can be safer and more effective.
- Experience of provider: More experienced practitioners may charge higher fees.
Typical price range per session:
- Upper lip: ÂŁ40-ÂŁ80
- Underarms: ÂŁ60-ÂŁ120
- Legs: ÂŁ160-ÂŁ320
- Full body: ÂŁ400-ÂŁ800+
At-home Laser & IPL Devices
At-home devices are a more affordable option, but they are less powerful than clinic lasers.
Pros:
- Cost-effective in the long run
- Convenient, no appointments needed
- Can be used for touch-ups
Cons:
- Slower results
- Not as effective for coarse or dense hair
- Potential for misuse or skin irritation
- Requires consistent upkeep
Popular devices include Philips Lumea, Braun Silk-Expert Pro, and Tria Hair Removal Laser.
Common Myths vs. Facts
- Myth: Laser hair removal is permanent.
Fact: It offers long-term reduction, but some regrowth is possible. - Myth: It works the same for all hair colours.
Fact: Best results occur on dark hair due to higher melanin content. - Myth: It’s only for women.
Fact: Men also get laser hair removal for backs, chests, and beards. - Myth: It’s unsafe for dark skin.
Fact: Newer lasers like Nd:YAG are safe for darker skin tones when used correctly. - Myth: It’s painful.
Fact: Most people find it tolerable, especially with cooling systems.
Top 3 Laser Hair Removal Providers in London
If you are considering treatment, here are three reputable clinics in London, each with its own strengths. So let’s get started.
Meridian Spa
Located in Greenwich, Meridian Spa is well known for its welcoming atmosphere and expert team. They use medical-grade diode laser technology that delivers effective results for different skin tones and hair types. Clients praise their personalised consultations, attention to detail, and emphasis on comfort during treatments. We also provide spa services so that you can pair your session with a relaxing massage or facial.
Pulse Light Clinic
Operating for over 20 years, and has multiple branches across central London, including Fenchurch Street, Tottenham Court Road and Bank. They offer a wide range of laser systems, such as Cynosure Elite + and GentleMax Pro, to safely treat all skin tones and hair colours.
Skin Clinics
As one of the UK’s largest dermatology and aesthetic clinic chains, their treatments are medically led, meaning trained medical professionals oversee all procedures. They use FDA-approved laser systems and have an excellent reputation for safety, hygiene and clinical expertise.
Frequently Asked Questions
How soon will I see results?
Some reduction may be visible after the first session, but noticeable changes usually occur after 2-3 sessions.
Can I shave between sessions?
Yes, shaving is fine. Avoid waxing, plucking, or threading, as they remove the follicle.
Is it safe during pregnancy?
Laser hair removal is not recommended during pregnancy due to a lack of safety research.
Can it remove 100% of hair?
No. Most achieve an 80-90% reduction with maintenance sessions.
Will my hair grow back thicker?
No. If regrowth occurs, it’s usually finer and lighter.
Final Takeaways
Laser hair removal is a safe, effective, and time-saving way to manage unwanted hair, but it requires commitment, realistic expectations, and proper aftercare. Choosing a qualified provider is essential for both safety and results.
Whether you opt for professional sessions or at-home treatments, laser hair removal can be an investment in both your confidence and your daily routine, giving you smoother skin and more time to enjoy it.
Ready to Experience Smooth, Hair-Free Skin?
At Meridian Spa, we offer advanced laser hair removal treatments using the latest technology for safe, effective, and long-lasting results. Whether you’re looking to target a small area or go for full-body smoothness, our experienced therapists ensure a comfortable and professional experience every time.
âś… Experienced & certified laser specialists
âś… Custom treatment plans for your skin & hair type
âś… Competitive London pricing with package deals available
Book your free consultation today and take the first step towards confidence that lasts. Visit us in Greenwich, London or call [020 8469 1961] to schedule your session.