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Common reasons why laser hair removal is not working

Published on: 04/29/26 12:39 PM

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Have you started laser hair removal but aren’t seeing the results you expected? There could be a simple explanation. In this blog, we’re looking into the common reasons why laser hair removal is not working.

What is laser hair removal?

Laser hair removal is a popular treatment for those seeking long-term hair removal. The treatment is completed using a small handheld device which emits light. The light disrupts hair growth at the follicle, making it more effective and longer lasting than traditional hair removal methods, such as waxing and plucking.

Laser hair removal is generally considered a safe treatment when performed by a trained professional. It requires a few sessions to work. The number of sessions a person needs depends on many factors, including the body area being targeted and the person’s skin profile. The laser targets melanin (the pigment) in the hair with concentrated light energy.

Laser is most effective during the anagen (active growth) phase, when the hair is attached to the follicle. This stage does not occur simultaneously in all hair follicles, which is why it must be completed over a set period. It can be used on many areas of the skin, including the legs and back. It is not typically recommended for vellus hair.

Why you might not be seeing results from laser hair removal

Laser hair removal is an effective treatment, but there are some instances where it may not work to its full ability. Here are some common reasons why you might be getting underwhelming results, even after a typical course of 6–8 sessions (though some individuals require more, especially in hormonally influenced areas).

Hormonal influences

Many people struggle with hormonal imbalances, and while they may be effectively managed in most ways, a common side effect is increased hair growth. Hormonal imbalances can be caused by a range of things, including PCOS, pregnancy or thyroid issues.

These conditions can stimulate new hair growth, which may reduce the overall effectiveness of laser treatments over time.

Skin colour and hair types

Traditionally, laser treatment works best on light skin and dark hair due to the contrast in pigmentation. However, newer technologies have expanded treatment options for a wider range of skin tones.

Irregular treatments or not enough sessions

When a person decides to have laser hair removal, they must also commit to the process, as it requires multiple sessions to see great results. Treatment times vary by area, but appointments are usually scheduled every 4-6 weeks. If you miss an appointment, it can lead to less effective results as the hair may not be targeted in its active growth phase.

Using other hair removal techniques between sessions

Generally, you should avoid the use of other hair removal techniques while undergoing laser hair removal. Otherwise, you risk missing the hairs at the right stage of the process. Shaving is typically allowed between sessions, as it does not remove the hair follicle.

Incorrect settings or technique

It’s vital that you only choose a reputable clinic for laser hair removal. Without highly skilled practitioners, you could end up with poor results or more serious side effects from the treatment.

Laser hair removal is not permanent, but it is often praised as one of the most long-lasting hair removal methods. You must seek honest advice so that you have realistic expectations of the laser session.

Other reasons why your treatment may not be performing include:

  • Certain medications
  • Genetic predisposition to hair growth
  • Different body areas (for example, facial hair often responds differently to leg hair)

Getting laser hair removal at Therapy House

At Therapy House, we’re excited to offer the Motus Pro laser system, a breakthrough in pain-free laser hair removal and advanced skin treatments.

The Motus Pro laser system offers a range of advanced laser treatments that deliver outstanding results with minimal discomfort and downtime.

This system can be used for laser hair removal, leg vein removal, skin rejuvenation, facial vessel and red vein treatment, breakout management and fungal nail reduction.

What are the benefits of our treatment?

The Motus Pro laser system offers many incredible benefits, beyond removing unwanted hair.

  • Minimal discomfort during treatment: Designed for a more comfortable treatment experience, with integrated cooling technology.
  • Fast treatment times: With full-body sessions typically completed in around 60 minutes, depending on individual needs
  • Exceptional laser hair removal results: Powerful lasers ensure noticeable, lasting results
  • Optimal safety: Clinically tested and CE-marked, with regulatory clearance for safety and effectiveness.
  • Innovation: Suitable for a wider range of skin tones, with improved results compared to traditional systems.

Why not check out our other blogs on laser hair removal?

Laser hair removal leads to long-term hair reduction, not complete permanent removal. Maintenance sessions are usually required. A personalised treatment plan, based on your skin type, hair type, and medical history, is key to achieving the best possible results.

If you’re considering laser hair removal or not seeing the results you expected, booking a consultation can help you understand what’s happening and how to improve your outcome.

Our experienced team will be more than happy to chat with you about your goals and answer any questions you have.

We hope this blog has been helpful on why laser hair removal may not be working. Contact us to see how we can help.

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