What is Exolase One Laser?

ExoLase is a fused erbium laser treatment available exclusively at Le Petit Saint. It combines two wavelengths in a single device, used separately or together, and at a wide range of strengths, so your treatment can be tailored precisely to your skin, your concerns and how much recovery time you have.

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Frequently Asked Questions

ExoLase combines two wavelengths. One gently removes microscopic areas of the skin's surface to renew texture and tone. The other works deeper, warming the skin to stimulate collagen while leaving the surface intact. Depending on your concerns, your doctor may use one wavelength, both together, or adjust the strength of each.

ExoLase can address a wide range of concerns: general skin rejuvenation (radiance, texture, fine lines and sun damage), the eyes, neck, chest, hands and lips, laser resurfacing and peels, and specific concerns including pigmentation, melasma, acne, scarring, stretch marks, and skin tags or other benign spots. Your doctor will recommend the right approach for you at consultation.

ExoLase consultations and treatments are carried out by our doctors at our Mayfair clinic, 49 Charles Street, London W1J 5EN.

Because some ExoLase treatments involve a period of healing, every new ExoLase patient begins with a consultation with one of our doctors, rather than treatment on the same day. This allows your doctor to assess your skin properly and build a plan that's right for you.

Most patients describe ExoLase as comfortable, with sensations during treatment often described as warmth or a light prickling rather than pain. Your doctor can discuss comfort options and what to expect at your consultation.

Downtime depends on the level and area treated. Gentle sessions typically involve no downtime. Advance sessions usually involve some redness and fine flaking for a few days. Intense sessions, and treatments for concerns such as acne or scarring, involve a longer recovery, sometimes with visible healing for up to two to three weeks. Your doctor will talk you through what to expect for your specific plan.

This depends on the level and concern being treated. Gentle sessions are usually given as a course of four, weekly, with maintenance every three months. Advance is usually two to three sessions, a month apart. Intense is usually one or two sessions. Scarring and some other concerns are typically treated over a course of several sessions. Your doctor will recommend a schedule at consultation.

Traditional ablative lasers typically treat the skin in multiple passes, or require switching between separate devices, often with longer sessions and a longer recovery. Exolase One's fused-wavelength approach is designed to deliver comparable collagen remodelling in a single pass, with a shorter treatment time and less downtime.

Yes. ExoLase can be used on all skin tones. For darker skin, we adjust the settings used and usually recommend preparing the skin for a few weeks beforehand to reduce the risk of pigmentation changes.

The best way to find out is a consultation with one of our doctors, who will assess your skin, discuss your goals and medical history, and confirm whether ExoLase, and which level or approach, is right for you.

ExoLase is offered at three levels. Gentle is designed for radiance, texture and pores with no downtime, usually given as a course of four weekly sessions, or a single session before a special event, with maintenance every three months. Advance is suited to more visible signs of ageing, sun damage, fine lines and enlarged pores, usually given as two to three sessions around a month apart. Intense is our most powerful option, for mature skin with deeper lines and significant sun damage, usually given as one or two sessions with a longer recovery.

Yes. ExoLase can soften crow's feet and crepey eyelid skin, with a subtle tightening of the brow and upper lid area.

Yes. ExoLase can improve crepey texture, fine lines and sun damage on the neck, chest and hands, as well as the face.

Yes. ExoLase can smooth fine lines and improve hydration and definition around the lips, without injections.

Yes. ExoLase can be used for laser resurfacing, renewing the skin's surface for fine lines, sun damage, uneven tone and stubborn lines around the mouth; as a laser peel, a controlled, predictable alternative to a chemical peel; or for non-ablative rejuvenation, supporting collagen and elasticity while leaving the surface intact, with minimal downtime.

Yes. ExoLase can improve sun damage, uneven tone and age spots. Melasma needs a more gradual approach and ongoing maintenance, which your doctor will discuss with you at consultation.

Yes. ExoLase can reduce breakouts in active, acne-prone skin, and can also be used to remodel acne scarring, with healing typically taking two to three weeks over a course of several sessions. Your skin can look temporarily worse for up to two weeks before it settles. It can also help improve the colour and texture of stretch marks, with newer red or purple marks generally responding best. Your doctor will assess your skin at consultation to confirm suitability.

Yes, after assessment by one of our doctors. ExoLase allows for precise removal of skin tags and other benign spots. Anything needing further investigation will be referred rather than treated.

Your doctor will assess your skin in detail, discuss your concerns and goals, and review your medical history to confirm that ExoLase is right for you. If it is, you'll receive a personalised treatment plan covering the recommended treatment, number of sessions, expected recovery time and cost. A small test patch and a short skin preparation programme may also be recommended before your first treatment. If ExoLase isn't the best option for you, your doctor will explain why and suggest alternatives.

After booking, you'll receive a short medical questionnaire to complete before your appointment. It's especially important to tell us if you have taken isotretinoin (Roaccutane) in the past year, have a history of cold sores, keloid or raised scars, or slow wound healing, are pregnant or breastfeeding, have had fillers, anti-wrinkle injections, a peel or another laser treatment recently, have recently tanned or used self tan or have a holiday planned, or use retinoids, acids or any prescription skin treatments.