A Single-Center, Open-Label Study to Evaluate the Efficacy and Tolerability of Retinal Encapsulated in a Novel Biomimetic Exosome in the Treatment of Mild-To-Moderate Facial Photodamage.

BACKGROUND

Numerous retinoid-based skincare products are available over-the-counter for photodamaged and photoaged skin, but are associated with objective (e.g., erythema, dryness, flaking, edema) and subjective (e.g., itching, tingling, stinging, burning) tolerability issues. A novel retinal formulation was developed using an engineered biomimetic vegan exosome as a delivery system. The formulation also contains proprietary and potent hyaluronic acid, as well as plant-based actives commonly used in traditional herbal medicines for their anti-inflammatory and antioxidant properties.

AIMS

Evaluate the efficacy and tolerability of this biomimetic exosome-encapsulated retinal product for treatment of mild-to-moderate facial photodamage.

PATIENTS/METHODS

Twenty females aged 35 to 65 years, with Fitzpatrick skin types I-VI, mild-to-moderate facial fine lines and wrinkles, and mild-to-moderate facial photodamage, were assessed at screening/baseline and weeks 2, 4, 8, and 12. Investigator- and participant-assessed evaluations were performed at each visit. The primary objective was to demonstrate a decrease in the appearance of fine lines and wrinkles, erythema, as well as a reduction of overall facial photodamage after a 12-week topical regimen. The secondary objective was to measure the frequency of adverse events throughout the study.

RESULTS

Statistically significant improvements in erythema, skin tone, skin texture, and lines/wrinkles were observed at all follow-up visits, compared to baseline. At weeks 8 and 12, all participants (100%) displayed improvements in facial aesthetics. Most participants (19/20; 95.00%) were satisfied with the product and would recommend it to others. No product-related adverse events were reported.

CONCLUSIONS

Daily use of this "hydrating retinal" improved signs of facial photodamage with none to mild signs of skin irritation.

© 2026 The Author(s). Journal of Cosmetic Dermatology published by Wiley Periodicals LLC.