One-year topical stabilized retinol treatment improves photodamaged skin in a double-blind, vehicle-controlled trial

Manpreeet Randhawa, Dianne Rossetti, James J. Leyden, Jared Fantasia, Joshua Zeichner, Gabriela Oana Cula, Michael Southall, Samantha Tucker-Samaras

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Background: Retinol, a precursor of retinoic acid, has great potentials as a topical anti-aging molecule; however, only a handful of clinical investigations have been published to date. Objective: This study aimed to assess the efficacy and safety of 0.1% stabilized retinol on photodamaged skin during a one-year treatment. Methods: The investigation included two 52-week, double-blind, vehicle-controlled studies. In the main study, 62 subjects applied either a stabilized retinol formulation or its vehicle to the full face. A second exploratory study evaluated histological/histochemical markers in 12 subjects after 52 weeks of either retinol or vehicle use on contralateral dorsal forearms. Results: The retinol group showed significant photodamage improvement over vehicle at all timepoints during the study. After 52 weeks, retinol had improved crow's feet fine lines by 44%, and mottled pigmentation by 84%, with over 50% of subjects showing +2 grades of improvement in many parameters. Additionally, at week 52, histochemical data confirmed the clinical results, showing increased expression of type I procollagen, hyaluronan, and Ki67 as compared to vehicle Conclusion: This study confirms that a stabilized retinol (0.1%) formulation can significantly improve the signs of photoaging, and improvements in photodamage continue with prolonged use.

Original languageEnglish
Pages (from-to)271-276
Number of pages6
JournalJournal of Drugs in Dermatology
Volume14
Issue number3
StatePublished - 1 Mar 2015

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