How Does Laser Hair Removal Work?
The Science Behind Smooth Skin
Laser hair removal sounds high-tech (and it is), but the science is straightforward. If you’ve ever wondered how light can stop hair from growing, this guide will break it all down — no jargon, just real answers.
The Basics of Laser Hair Removal
Laser hair removal uses concentrated light energy to target and damage hair follicles, reducing their ability to regrow hair. The goal is long-term hair reduction — smoother skin without the need for constant shaving, waxing, or plucking.
What Is a Hair Follicle?
A hair follicle is a tiny sac in your skin from which hair grows. Each follicle has a growth cycle made up of three phases: anagen (growth), catagen (transition), and telogen (resting). Laser hair removal is only effective during the anagen phase, when the hair is actively growing and still attached to the follicle.
How Does the Laser Target Hair?
The laser emits a beam of light that’s absorbed by the pigment (melanin) in the hair. The light energy converts to heat, which travels down the hair shaft and damages the follicle. Once damaged, the follicle struggles to grow new hair.
Why Multiple Sessions Are Needed
Because only a portion of your hair is in the anagen (active growth) phase at any one time, multiple sessions are needed to catch all the follicles. Typically, clients need around 6–8 sessions spaced 4–6 weeks apart for best results.
What Does the Laser Feel Like?
Most people describe the sensation as a quick, hot flick — like an elastic band snapping against the skin. It’s over in seconds, and modern lasers often include cooling tips or built-in fans to keep discomfort to a minimum.
Does Laser Work on All Hair and Skin Types?
Laser technology has come a long way. While earlier lasers were best suited for light skin and dark hair, today’s machines (like the ones we use at Renew – Specialist Laser Clinic) can safely treat a wider range of skin tones and hair types. However, very light blonde, grey, or red hairs don’t contain enough pigment to respond well to laser.
What Areas Can Be Treated?
- Face (upper lip, chin, cheeks)
- Underarms
- Arms and legs
- Bikini line and Hollywood
- Stomach and back
- Neck and jawline
If there’s hair, chances are we can treat it — safely and effectively.
What Results Can You Expect?
After your full course, you can expect up to 90% permanent hair reduction. Some fine hairs may return over time, but they’re usually lighter, thinner, and slower to grow. Many clients choose a top-up session once or twice a year to stay smooth.
What Happens During a Session?
Here’s what a typical appointment looks like:
- You arrive with clean, shaved skin.
- Your technician applies a cooling gel (if needed).
- The laser is passed over the area in quick pulses.
- The area is cooled and soothed post-treatment.
- You leave with aftercare instructions and no downtime needed.
Is Laser Hair Removal Safe?
Absolutely — when carried out by trained professionals using medical-grade lasers. Side effects are rare but can include temporary redness or sensitivity. We always carry out a patch test before starting your treatment plan to make sure your skin responds safely.
Final Thoughts
Laser hair removal works by targeting the pigment in the hair with precision light energy to damage the follicle and reduce hair growth. It’s safe, effective, and a long-term solution for unwanted hair.
Want to learn more? Book your free consultation with Renew – Specialist Laser Clinic and let’s talk through your skin type, hair goals, and treatment plan — no pressure, just honest advice.
