Laser Hair Removal: How a Course Works and Why It Takes Several Sessions
Laser is a long-term hair reduction treatment, not a one-off appointment. Understanding the hair growth cycle explains why a course works best.

Laser hair removal is one of the most popular treatments for anyone tired of shaving, waxing or ingrown hairs. It is also one of the most misunderstood. The key point is simple: laser is a course, not a single session, and the reason lies in how hair grows.
How laser works
The laser targets the pigment in the hair, sending energy down to the follicle beneath the skin. Follicles that are in their active growth phase at the time of treatment respond best, which reduces their ability to produce new hair.
Why you need several sessions
At any one time, only a proportion of your hairs are in that active growth phase. Others are resting or shedding and will come through later. Spacing sessions several weeks apart allows the laser to reach more follicles as they enter the growth phase. That is why laser is offered as a course, and why Leon Beauty offers 6-session packages for many areas.
What results can you expect?
Laser is a treatment for long-term hair reduction. Many clients notice regrowth becoming finer, lighter and sparser as the course progresses. Results vary from person to person and depend on your hair colour, skin tone, the area treated and hormonal factors. Some clients choose occasional maintenance sessions in the future. Your technician will talk you through realistic expectations at your consultation.
Your consultation and patch test
Before your first session you will have a consultation and a patch test. This is where your technician checks your suitability, your medical history and any medication, and confirms the settings that are right for your skin. Please be open about any skin conditions, medication or pregnancy, as these can affect whether and when treatment is appropriate.
How to prepare
- Shave the area before your appointment, unless told otherwise.
- Do not wax, pluck, thread or epilate during your course, as laser needs the hair root in place.
- Avoid sun exposure, sunbeds and fake tan on the area before treatment.
- Arrive with clean skin, free from creams, deodorant or make-up on the treatment area.
Which areas can be treated?
Treatment areas range from the face to the upper body, lower body and intimate areas, including popular choices such as underarms, legs and Brazilian. See prices and courses on our Laser Hair Removal page, and read our laser aftercare guide.
Frequently asked questions
Is laser hair removal permanent?
Laser is a treatment for long-term hair reduction rather than guaranteed permanent removal. Many clients see significant, lasting reduction, and some choose occasional maintenance sessions.
How many sessions will I need?
Laser works best as a course because hair grows in cycles. Leon Beauty offers 6-session packages for many areas, and your technician will advise what suits you.
Why can't I wax during a laser course?
Laser targets the hair root. Waxing, plucking and epilating remove the root, so shaving is the recommended method between sessions.
This article is general information and is not medical advice. If you have a skin condition, are pregnant or breastfeeding, or take medication that affects your skin, speak to your GP or pharmacist before treatment and tell your technician at your appointment. Prices, availability and treatment details are confirmed on Fresha when you book.



