Laser Hair Removal FAQs

We offer a free consultation with one of our highly experienced team. At the consultation we carry our a patch test and explain in detail the laser hair removal procedure.At your consultation you will also have the chance to ask any questions you  have regarding the laser treatment and other options.

Below you will find the most frequently asked questions on laser hair removal. Please feel free to email us or call us should you have any further questions.

How does laser work?

Lasers emit energy in the form of light. This targets the melanin in the hair which heats up the hair destroying it from the root. This does mean that the hair has to be dark in colour. Blonde and white hair cannot be treated with lasers.  The skin is not affected because it is cooled during treatment but also because of something called Thermal Relaxation Time.

Why do I need a course of treatments?

A course of treatments is required because laser only works on hair that is in its growth phase called anagen. The other two phases of the hair cycle, called catagen and telogen, mean the hair is dormant and not affected by laser light.

As the hair is in different phases at different times, several treatments are required over a period of time for the treatment to be effective and catch the hair at the right growth phase to be removed by laser.

How many treatments will I need?

Usually 6 to 10 and depends on the area being treated; the starting point; and your hair colour and skin colour. But certainly you will need 6 treatments to begin with.Coarse, thick hair respond better. It is best to come in for your consultation and create a treatment plan for your individual skin and hair type for laser hair removal.

Does Laser Hair Removal hurt?

As with all treatments, it depends on the individual and  and how sensitive they are, as well as the area being treated. Generally speaking the bikini and underarms are painful: arms and legs not so.The sensation of discomfort is like an elastic band being snapped against your skin but the laser is moving all the time so the sensation is reasonably  well-tolerated.Avoid caffeine before your treatment as it can make you more sensitive.You can take a mild pain reliever (Paracetamol; NOT Ibuprofen.

What is the difference between IPL and laser?

Both have their place; but lasers by their very nature are more powerful and hence more efficient at removing hair.

How long do I leave between treatment sessions?

It depends on the area.  6 to 8 weeks for body hair removal and 3-4 weeks for facial hair removal.

What do I have to do after treatment?

Your skin will be sensitive so you’re advised to refrain from hot showers/baths, steam rooms, saunas, swimming pool and exercise for 24-48hrs.

Don’t use sun beds on the area or expose the area to direct sunlight at all while having laser.

Don’t use perfumed products or thick creams for 48hrs.

Don’t wear tight clothes like skinny jeans or nylon tights (if having your legs treated) for 48hrs, as they may cause friction and aggravate recently treated skin.

All of the above may cause skin to become irritated in the treated area, it is important that you follow these guidelines to ensure your skin safety.

Is the laser treatment safe?

Laser is a clinically tested treatment; FDA approved and has undergone rigorous trails to ensure patient safety and efficacy.

Before starting a course of treatment, you are invited in for a thorough consultation and patch test to ensure you are suitable for treatment.

If you are having treatments with us and happen to go on holiday throughout your treatment course we ask that you let us know in advance to book your treatments with appropriate gaps before and after sun exposure.

Waxing and Shaving Before, During or After Laser Hair Removal


You can shave the day before treatment; not the day of the laser treatment, as shaving exfoliates the skin a bit and makes it sensitive, making laser treatment uncomfortable.

Don’t wax as this pulls the hair out and we would need to wait at least 2 weeks after waxing to do laser hair removal treatment.

During the course of treatment

You may shave between sessions – do not wax as it will affect hair growth patterns and affect results. Waxing or plucking completely removes the hair form the follicle, and for the laser to work there needs to be a hair present in the follicle.

Why does Santi give a free hair removal consultations?

It’s important for us and you to fully understand the treatment. We are better able to provide a bespoke service catered to your individual needs and requirements. It also ensures that we can make a thorough assessment of suitability and efficacy of laser hair removal.

Santi London, 33 Thurloe Street, London SW7 2LQ Appointments: 0207 5847000

Terms Privacy Policy