PDT Dermaris: the revolutionary indoor photodynamic therapy for scalp actinic keratoses
Why scalp actinic keratoses are a major concern
Actinic keratoses (AK) are small, often overlooked skin lesions that commonly appear on the scalp and face due to repeated sun exposure. While they may seem minor, they carry a risk of progressing to skin cancer. Treating them can be challenging, especially on the scalp where hair coverage can limit access and visibility.
This is where indoor photodynamic therapy (PDT) comes in — a modern, non-invasive, and highly effective treatment — made even more practical with the PDT Dermaris lighting system.
What is PDT Dermaris?
PDT Dermaris is an innovative medical lighting system designed to activate the photosensitizing cream used in photodynamic therapy. Its advanced technology accurately replicates artificial daylight, ensuring:
- Uniform exposure across all lesions
- Optimal patient comfort during treatment
- Flexible treatment sessions, adjustable between 1 and 2 hours depending on clinical needs
This system is particularly ideal for treating scalp actinic keratoses, where proper access and visibility can be challenging.
Recent studies confirm the effectiveness of 1-hour treatments
Two recent studies highlight the efficiency of indoor PDT for the scalp:
- Dermatol Ther (Heidelb)
P. Antonetti et al. compared 1-hour and 2-hour exposure on different areas of the same patients’ scalps. The result? One hour is sufficient to clear lesions, with improved patient comfort. - WCM 2025 Study
Researchers treated different scalp areas on the same patients to directly compare the efficacy and tolerability of the two protocols.
Key takeaway: Shorter exposure times do not compromise effectiveness. Patients experienced less discomfort, making treatments more tolerable and improving adherence.
Why this matters to you
For patients with actinic keratoses, these studies demonstrate that it is possible to benefit from a fast, comfortable, and effective treatment. For dermatologists, a shorter session means optimized consultation time and more efficient patient management.
The intrapatient study confirmed that 1 hour of indoor photodynamic therapy is as effective as 2 hours while reducing discomfort — a true game-changer in dermatology.
Why choose PDT DERMARIS for your patients
With PDT Dermaris, dermatologists gain a reliable and ergonomic tool to treat actinic keratoses efficiently:
- Time-saving: just one hour of exposure is enough
- Safety and consistency: controlled, precise lighting over all treatment areas
- Enhanced patient experience: comfortable sessions with minimal discomfort
- Clinically proven: recent studies confirm the effectiveness of this protocol
In practice, PDT Dermaris allows clinics to treat more patients per day without compromising treatment quality or safety.
The modern solution for actinic keratoses
When combined with a high-performance lighting system like PDT Dermaris, indoor photodynamic therapy transforms the treatment of scalp actinic keratoses:
- Effective: clinically proven results
- Fast: one-hour sessions are sufficient
- Comfortable: improved patient experience
- Practical: streamlines clinic workflow for dermatologists
For any dermatology clinic seeking a modern, scientific, and patient-friendly solution, PDT Dermaris is the essential tool.
Scientific references
- Dermatol Ther (Heidelb) – “Indoor Daylight Photodynamic Therapy for Actinic Keratosis of the Scalp: Intrapatient Comparison Study of 1 h versus 2 h Exposure Time” – P. Antonetti et al.
- WCM 2025 Book of Abstracts – “Intrapatient comparative study on indoor daylight photodynamic therapy (IDL-PDT) with exposure time 1 hour vs 2 hours for the treatment of multiple actinic keratoses of the scalp” – P. Antonetti et al.