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Ultrastructural changes seen after ALA-IPL photorejuvenation: a pilot study
Ellen S Marmur1, Robert Phelps, David J Goldberg
1Skin Laser & Surgery Specialists of New York and New Jersey, NJ 07601, USA.
Summary
Aminolevulonic acid (ALA) photodynamic therapy combined with intense pulsed light (IPL) significantly boosts collagen production for skin rejuvenation compared to IPL alone. This ALA-IPL treatment shows enhanced photorejuvenation effects.
Area of Science:
- Dermatology
- Aesthetic Medicine
- Photobiology
Background:
- Intense pulsed light (IPL) is a popular non-ablative treatment for skin photodamage.
- Anecdotal evidence suggests aminolevulonic acid (ALA) photodynamic therapy with IPL may enhance photorejuvenation over IPL alone.
Purpose of the Study:
- To investigate the ultrastructural changes in collagen following ALA-IPL treatment.
- To compare the efficacy of ALA-IPL versus IPL alone for photorejuvenation.
Main Methods:
- Seven subjects with minimal photodamage received full-face IPL treatment.
- One half of the face was pre-treated with topical ALA.
- Pre- and post-treatment biopsies were analyzed using electron microscopy for collagen changes.
Main Results:
- All subjects showed an increase in type I collagen fibers post-treatment.
- Subjects pre-treated with ALA exhibited a greater increase in type I collagen formation.
Conclusions:
- This pilot study is the first to examine ultrastructural changes from ALA-IPL photorejuvenation.
- ALA-IPL treatment demonstrated a greater shift towards type I collagen synthesis compared to IPL alone.
- Adding ALA to IPL may offer superior photorejuvenation benefits.