Key Takeaways
- Laser hair removal targets the pigment in the hair to damage the follicle, giving long lasting hair reduction rather than guaranteed permanent removal.
- Most people need 8 to 12 sessions, as the laser only affects hairs in their active growth stage.
- It works best on darker hair. Blonde, grey, white and red hair respond poorly, and darker skin needs the right laser and settings.
- For best results, shave a day or two before each session. Stop waxing, threading and tweezing for at least four weeks beforehand.
- Avoid sun exposure for two weeks before and after treatment, and wear SPF 50 daily.
- Mild redness usually fades within hours, and treated hairs shed over one to three weeks.
- Cavendish Clinic is a consultant-run, doctor-led clinic. Treatment includes medical screening, a skin and hair assessment and a patch test, plus a free consultation for new clients.
Shaving, waxing and threading can feel like a never ending cycle. Laser hair removal offers a longer lasting answer, and this guide covers how it works, what to expect and the expert tips that improve results.
What Is Laser Hair Removal and How Does It Work?
Laser light is absorbed by the pigment (melanin) in the hair and turns to heat, which damages the follicle so it grows finer, slower hair or none at all.
Hair grows in cycles, and the laser only affects follicles in the active growth stage. That is why a course of treatments is needed rather than a single session.
Is Laser Hair Removal Permanent?
Laser hair removal is best described as permanent hair reduction. Most people enjoy a significant, long lasting reduction, although some fine regrowth is normal. Hormonal changes such as PCOS or menopause can trigger new growth, so occasional maintenance may help.
Which Areas Can Be Treated?
Popular areas include:
- Face: upper lip, chin, jawline and neck
- Body: underarms, arms, back, chest and stomach
- Bikini line: from a simple tidy up to a full Hollywood
- Legs: half or full leg
- Men’s grooming: beard line, back and shoulders
10 Expert Tips to Maximise Your Laser Hair Removal Results
1. Checking You’re a Suitable Candidate
Laser hair removal tends to work best on lighter skin with darker hair, because the laser can easily tell the hair apart from the surrounding skin. Specialist lasers are available for darker skin tones. Blonde, grey, white and red hair contain little pigment, so they respond poorly.
Your practitioner will review your medical history first. Treatment is not advised during pregnancy, and some medicines that make skin sensitive to light, such as isotretinoin, need to be stopped well beforehand. People with darker skin are more prone to temporary pigment changes, which our guide to understanding and treating hyperpigmentation explains in more detail.
2. Scheduling Sessions Strategically
Most people need around 8 to 12 sessions spaced about four weeks apart. Facial hair often suits shorter intervals, while legs may need six to eight weeks. Keeping to schedule catches each hair in its growth phase.
3. Avoiding Waxing, Threading and Tweezing
The laser needs the hair root in place to work. Waxing, threading and tweezing remove the follicle, so stop these methods at least four weeks before your first session and throughout your course.
4. Shaving Before Treatment
Shave the area a day or two beforehand. This keeps the root intact and makes treatment more comfortable.
5. Wearing Comfortable Clothing
Choose loose clothing on the day to avoid friction on freshly treated skin.
6. Mindful Skincare
Avoid self tanners and harsh skincare such as retinoids, acids and scrubs around each session. Once your skin has settled, reintroduce antioxidants; our article on which vitamin C antioxidant is right for you can help you choose.
7. Limiting Sun Exposure
Limit sun exposure for two weeks before and after treatment, as tanned skin is more likely to react. Wear a broad spectrum SPF 50 daily; we recommend SkinCeuticals sun protection.
8. Avoiding Hot Showers and Saunas
Skip hot showers, saunas and intense exercise for a day or two afterwards to prevent irritation.
9. Moisturising and Following Aftercare
Use gentle, fragrance free aftercare products. Mild redness usually fades within hours, and treated hairs shed over one to three weeks.
10. Choosing a Reputable Clinic
Look for qualified practitioners, a thorough consultation and a patch test before your first session. At Cavendish Clinic, clinical governance sits at the heart of every plan.
Does Laser Hair Removal Hurt?
Most people describe a quick snap, like a rubber band against the skin. Modern devices use cooling, and the upper lip and bikini line feel more intense than legs.
Laser vs IPL Hair Removal: What Is the Difference?
Lasers use a single focused wavelength, while IPL uses broad spectrum light, so lasers are more precise and better suited to darker skin. At our clinic, Lumecca IPL is used to treat sun spots, redness and uneven tone rather than hair.
Extra Benefits Beyond Smooth Skin
Most people enjoy fewer ingrown hairs and less razor rash. If years of waxing or ingrown hairs have left marks or scarring, SkinPen Microneedling can help to smooth skin texture once your course is complete.
Why Choose Cavendish Clinic for Laser Hair Removal?
Laser hair removal is a medical treatment, so it deserves a medical team. Founded in 2011 by consultant plastic surgeons from London teaching hospitals, our Fitzrovia clinic is consultant run and doctor led, under founder and plastic surgeon Mr Matt James. Meet our full team of doctors and surgeons.
How We Help You Get the Best Results
- Medical screening first: we review your health, medicines and hormonal conditions such as PCOS.
- Skin and hair assessment: your skin tone and hair colour guide the right settings, which matters most for darker skin.
- Patch test for peace of mind: we check how your skin responds before your first full session.
- A personalised course: sessions are timed to your treatment area and hair cycle.
- Doctor support if you need it: any redness or pigment change can be assessed promptly by a clinician.
- Expert aftercare: we guide you on SkinCeuticals sun protection and gentle skincare between sessions.
Book Your Consultation
Considering laser hair removal in London? Our doctor-led team in Fitzrovia, trusted by thousands of patients since 2011, will recommend the safest plan for you.
BOOK YOUR CONSULTATION today.
