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Glycolic acid peels for postinflammatory hyperpigmentation in black patients. A comparative study
R L Burns1, P L Prevost-Blank, M A Lawry
1Department of Dermatology, Henry Ford Hospital, Detroit, Michigan 48202, USA.
Summary
Serial glycolic acid peels offer additional benefits for treating postinflammatory hyperpigmentation in individuals with darker skin tones. This approach, combined with topical treatments, showed faster and more significant improvements with minimal side effects.
Area of Science:
- Dermatology
- Aesthetic Medicine
Background:
- Postinflammatory hyperpigmentation (PIH) is challenging to treat in Fitzpatrick skin types IV, V, and VI.
- Glycolic acid peels are effective for pigmentary issues in lighter skin tones, but data for darker skin is limited.
Purpose of the Study:
- To evaluate the efficacy of serial glycolic acid peels as an adjunct to topical therapy for PIH in darker skin types.
- To compare the outcomes of a combined treatment regimen (hydroquinone, tretinoin, and glycolic peels) versus a topical-only regimen.
Main Methods:
- A randomized controlled study involving 19 patients with Fitzpatrick skin types IV-VI.
- Participants received either a topical regimen (hydroquinone/glycolic acid gel and tretinoin cream) or the same topical regimen plus six serial glycolic acid peels.
- Outcomes were assessed using photography, colorimetry, and subjective patient evaluations.
Main Results:
- Both treatment groups showed improvement in PIH.
- The group receiving serial glycolic acid peels demonstrated a trend towards more rapid and pronounced improvement.
- The peel group also experienced increased lightening of surrounding normal skin, indicating a broader effect.
Conclusions:
- Serial glycolic acid peels, when added to a topical regimen, provide an additional benefit for treating PIH in individuals with darker skin.
- This combined approach appears safe and effective, with minimal adverse effects observed in the pilot study.