

ABOUT ALA-PDT
Dr. Barry offers a science-based approach called Photodynamic Therapy (PDT) with aminolevulinic acid (ALA) that focuses on treating acne at its source. This non-hormonal treatment begins with the gentle application of a light-sensitive gel that penetrates deep into the pores, where acne starts. After a short absorption period, specialized red-light activates the gel, triggering a natural process that kills acne-causing bacteria, stops sebaceous glands from production oil, and reduces inflammation. Informed by dermatologic research, PDT has been shown to improve skin clarity while supporting the skin’s natural healing process. Designed with teens in mind, this treatment offers a safe, thoughtful alternative to hormonal therapies, with no daily medications, no systemic side effects, and visible, long-lasting results.
Evidence-based treatment
Hongcharu, Wichai et al.
This study investigates the efficacy of combining topical aminolevulinic acid (ALA) with red light therapy (PDT) to treat acne. The results indicate that this combination leads to significant and prolonged suppression of sebum production and bacteria, offering a promising alternative to traditional hormonal acne treatments.
Zeitouni, Nathalie C et al.
Photodynamic therapy using ALA gel and red light therapy is an effective and well-tolerated treatment for actinic keratosis, nonmelanoma skin cancers, and acne, offering a non-hormonal, site specific alternative to conventional therapies. The article highlights current practices and clinical evidence supporting the safety, efficacy, and optimized protocols for this treatment modality.
Serra-Guillén, C., Llombart, B., & Sanmartín, O.
A mild photodynamic therapy protocol using ALA gel and red light demonstrated significant long-term improvement in various types of acne vulgaris, with 95.5% of patients showing a reduction of 60% or more in lesions. The treatment was well tolerated, showed durable results over an average of 12.5 months, and had minimal side effects.
OUR TREATMENT SPECIALTIES
Acne Consultation
Meet with Dr. Barry one-on-one to identify locations of acne and establish a treatment plan. This meeting includes an initial assessment, facial mapping, and an acne treatment plan that incorporates the revolutionary ALA-PDT treatment.
Acne Care
Undergo Petite Retreat's acne care protocol that includes two weeks to one month of medial treatment using Petite Retreat's acne care products. This is essential to control, cleansing, and clearing acne breakouts prior to ALA-PDT treatment.
PDT Treatment
Discover your true skin by experiencing the revolutionary red light therapy treatment. Utilize a high quality red light that combines with the aminoevulinic gel to kill bacteria, stop the production of oil, and heal inflammation.


Passionate about skin health, Dr. Barry understands the challenges of maintaining healthy skin in adolescence and beyond. Looking for ways to combat acne at the source, without potentially harmful medications, she is sponsoring a revolutionary treatment for acne.
Located at the office of Petite Pediatrics, the BASECAMP trailer is a sanctuary, ensuring privacy and personalized care, designed to elevate one’s skin healing journey.
Petite Retreat MD strives to be a refuge for teens who have been struggling with acne. Introducing state-of-the art photodynamic therapy, a treatment that can transform your skin and restore the healthy glow that is within.
Personal Sanctuary
Our serene sanctuary ensures privacy, comfort, and personalized care designed to elevate your skin's healing journey.
Individualized Experience
Experience a personalized approach as we engage in one-on-one consultations, guaranteeing care that is tailored to your acne needs.
Evidence-based Treatment
Aminolevulinic Photodynamic Therapy is backed by research and clinical studies, verifying it's efficacy and harmlessness.
Red Light Therapy
Red light therapy is a emerging breakthrough light therapy backed by science and research, shown to improve skin health and aesthetics. Red light therapy is an essential part of restoring your skin's glow.
Client Satisfaction
Join a community of satisfied patients who have embraced the transformative effects of our doctors, and facilties.
BEFORE & AFTER PHOTOS

