Related Experiment Video
Updated: Jun 21, 2026

Enhancement of Facial Rejuvenation Through a Combination of 1565 nm Non-Ablative Fractional Laser with 30% Supramolecular Salicylic Acid
Published on: September 27, 2024
5-Fluorouracil superficial peel for multiple actinic keratoses
Ediléia Bagatin1, Solange P Teixeira, Karime M Hassun
1Department of Dermatology, Cosmetic Dermatology Unit, and Department of Pathology, Universidade Federal de Sao Paulo, Sao Paulo, Brazil. edileia_bagatin@yahoo.com.br
Background:
Chronically photodamaged skin usually presents with multiple, widespread, actinic keratoses (AKs), and treatment of the entire affected area is recommended.
Methods:
We report our experience with a combination of Jessner's solution or 70% glycolic acid (GA) with 5% 5-fluorouracil (5-FU) solution for superficial pulse peeling used in the treatment of widespread AKs in 31 patients. Pulse peelings were performed at biweekly intervals. The endpoint for treatment was complete or maximum clearance of the lesions at clinical evaluation. Pre- and post-skin biopsy and histopathologic examination were performed in three patients for the purpose of demonstrating the pulse peel effects.
Results:
All patients achieved a satisfactory result, including the complete regression, or at least 80% clearing, of AK lesions and an overall improvement of photodamaged skin.
Conclusion:
We consider this superficial 5-FU pulse peel to be a safe, well-tolerated, very effective, and highly inexpensive therapeutic option for the treatment of multiple, diffuse AKs. Its benefit/cost ratio will be of interest to public health services, mainly in developing countries.
Related Concept Videos
Skin Cancer
Basal Cell Carcinoma (BCC): BCC is the most common type of skin cancer, accounting for about 80% of cases. It typically develops in...
Drugs for Peptic Ulcer Disease: Sucralfate as Mucosal Protective Agents
In this scenario, mucosal protective agents like sucralfate play an essential role. Sucralfate, a complex of sulfated sucrose and aluminum hydroxide, demonstrates its usefulness in acidic conditions,...
Papillary Dermis
The dermis might be considered the "core" of the integumentary system, as distinct from the epidermis and hypodermis. It contains blood and lymph vessels, nerves, and other structures, such as hair follicles and sweat glands. The dermis is made of two layers of connective tissue that comprise an interconnected mesh of elastin and collagenous fibers, produced by fibroblasts.
Papillary Layer
The papillary layer is made of loose, areolar connective tissue, which means the collagen and...
Renewal of Skin Epidermal Stem Cells
Clinical Applications of Epidermal Stem Cells
Cells of the Epidermis
The cells in all these layers except the stratum basale are called keratinocytes, a type of cell that manufactures and stores the protein keratin. The keratinocytes in the stratum corneum are dead and regularly slough away, being replaced by cells from...

