Close-up of freckled skin with visible sun spots, emphasising cumulative sun damage and the need for regular skin checks at Apex Skin Clinic Berkshire Grove Hospital.

Photodynamic Therapy (PDT) for Skin Cancer

A non-surgical treatment for certain skin cancers and pre-cancerous lesions using light-activated medicine.

Close-up of a woman's face showing sun-damaged skin and freckles, highlighting the importance of sun protection and early skin cancer detection at Apex Skin Clinic Berkshire Grove Hospital.

What is Photodynamic Therapy?

Commonly referred to as: PDT, light therapy for skin cancer, non-surgical skin cancer treatment, red light treatment, actinic keratosis light therapy.

Photodynamic therapy (PDT) is a well-established non-surgical treatment for precancerous skin lesions and low risk skin cancers that is increasingly popular across the UK. It involves applying a special light-sensitizing gel to abnormal skin cells, which are then exposed to a targeted light source. This process selectively destroys damaged cells while leaving healthy tissue untouched.

PDT skin treatment is most often used for pre-cancerous lesions and superficial skin cancers, offering an effective solution without the need for cutting or stitching. At Apex Skin Clinic, our consultant skin cancer specialists and consultant dermatologists deliver photodynamic therapy UK patients can trust — providing safe, clinically effective care for a range of early skin cancers and cosmetic concerns.

Because photodynamic treatment preserves the surrounding skin and avoids scarring, it is especially suitable for visible areas such as the face, scalp and chest. It can also treat large areas at one time in a single session, providing efficient and effective treatment.

What Are The Benefits Of Photodynamic Therapy?

PDT skin treatment offers many advantages. It is completely non-invasive, with no incisions or stitches required. This makes it particularly beneficial for treating areas such as the face, scalp, chest and hands, where preserving the skin’s appearance is important.

Because photodynamic treatment targets only abnormal cells, it spares healthy tissue and minimises the risk of scarring. Patients can often have multiple lesions treated during a single session, improving efficiency and reducing overall treatment time.

PDT also provides a valuable option for patients who prefer not to undergo surgery, or who may not be suitable for surgery due to medical conditions. It is a well-established, effective treatment with excellent cosmetic outcomes for carefully selected skin cancers and pre-cancerous lesions.

  • Your consultant will carefully assess your skin to confirm that PDT skin treatment is appropriate. In some cases, a biopsy may be performed first to confirm the diagnosis. You will be provided with clear instructions on how to prepare for the procedure, and you will have the opportunity to ask any questions.

  • On the day of your photodynamic treatment, a photosensitising gel will be applied to the treatment area. You will be asked to wait for approximately two to three hours to allow the cream to fully absorb into the skin cells.

    After this, you will return to the clinic where a specialised PDT light treatment for skin will be applied for 5 to 10 minutes. You may feel a warm, tingling or stinging sensation during this time, but any discomfort is temporary and can be managed with cooling airflow and short breaks.

  • In the days following PDT skin treatment, the treated area may become red, swollen and crusted. Over time, this will heal naturally as the skin renews. Full recovery generally takes between 2 and 4 weeks.

    Your consultant will provide personalised aftercare instructions and will advise you to protect the area from sun exposure during the healing period. You will also be given guidance on moisturising the skin to promote recovery.

    Our team will schedule a follow-up to monitor your progress and ensure you achieve the best possible outcome.

Close-up of freckles across a woman’s shoulder and neck, illustrating sun-related pigmentation and the importance of regular skin monitoring at Apex Skin Clinic Berkshire Grove Hospital.

Who Should Consider Photodynamic Therapy?

If you have been wondering what is PDT skin treatment?, it is designed to treat pre-cancerous changes and early skin cancers on the skin’s surface. We most commonly use PDT light treatment for skin to manage actinic keratosis, Bowen’s disease (squamous cell carcinoma in situ), and superficial basal cell carcinoma (BCC) in patients where surgery may not be suitable or preferred.

Some patients are offered PDT skin treatment when surgery might affect cosmetic outcomes, or where multiple lesions need treating. The treatment is also occasionally used to rejuvenate sun-damaged skin and reduce inflammation in selected cases of acne. However, PDT is not appropriate for invasive cancers or large nodular BCCs, where surgical management remains the best option.

How Photodynamic Therapy Works

Photodynamic therapy works by applying a photosensitising gel directly to the treatment area. This cream is absorbed by abnormal skin cells, making them highly responsive to light. After a waiting period of around three hours, a controlled PDT light treatment for skin is performed using either red or day light, depending on the type of lesion being treated.

The light triggers a chemical reaction within the sensitised cells, causing them to break down naturally over the following days and weeks. The healthy surrounding skin remains unaffected.

As the skin heals, old damaged cells are replaced by new, healthy skin — leaving behind a clearer, smoother appearance. Because UK dermatology guidelines recommend this targeted approach, it helps patients avoid unnecessary surgery, particularly in cosmetically sensitive areas.

Frequently Asked Questions

  • PDT typically results in little or no scarring, especially in comparison to surgical options.

  • For pre-cancerous lesions and superficial skin cancers, photodynamic therapy UK studies show excellent success rates. For more advanced skin cancers, surgery remains the gold standard.

  • Most patients experience some stinging, burning or warmth during PDT light treatment for skin, but this is temporary and eased with cooling fans and breaks.

  • Many lesions respond to a single session, but some may require a second treatment a few weeks later.

Find Photodynamic Therapy Near You

Apex Skin Clinic offers consultant-led photodynamic therapy for skin cancer and pre-cancerous lesions at our private dermatology clinic in Berkshire Grove Hospital, Maidenhead.

We welcome patients from Windsor, Eton, Marlow, Slough, Ascot, and throughout Berkshire, London and Surrey, seeking expert care and effective non-surgical skin cancer treatments.

Photodynamic Therapy at Berkshire Grove Hospital – Maidenhead, Windsor, Eton and Beyond

Apex Skin Clinic offers consultant-led photodynamic therapy for skin cancer and pre-cancerous lesions at our private dermatology clinic in Berkshire Grove Hospital, Maidenhead.

We welcome patients from Windsor, Eton, Marlow, Slough, Ascot, and throughout Berkshire, London and Surrey, seeking expert care and effective non-surgical skin cancer treatments.