What is RETIN-A MICRO?
RETIN-A MICRO is an oil-free prescription medicine indicated for topical application in the treatment of acne. It uses a unique Microsponge® system. This technologically advanced system is designed to minimize the irritation commonly experienced with the highest strength of tretinoin. Full U.S. Prescribing Information Back to Top What is the ingredient in RETIN-A MICRO? RETIN-A MICRO contains tretinoin, the same active ingredient in RETIN-A® and RENOVA®. RETIN-A and RETIN-A MICRO are indicated for acne. Full U.S. Prescribing Information Back to Top What are microspheres and how does the Microsponge® system work? Microspheres are round microscopic particles made of synthetic polymer. These particles hold tretinoin in the Microsponge® system, and the microsponges with the drug are formulated into a gel. The microspheres hold the medication in reserve, allowing the skin to absorb small amounts of tretinoin over time. Dermatologists who conducted the clinical studies believe this may be wh
