U.S. doctors online nowAsk doctors free
A 38-year-old female asked:

How long is tretinoin cream effective for? i have it about a yr & it doesn't burn or irritate even if used on new skin like the arm.

1 doctor answer3 doctors weighed in
Dr. James Ferguson
Pediatrics 48 years experience
Some basics: This product like many similar ones comes in differing strengths. They generally have an effective shelf life of a couple years. Effect on regular thick skin like your arm is much less than the fragile tissues of your face. Leave it on too long & you may burn your facial skin. Use it for the duration you have developed a tolerance to & it may just do its job.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Apr 4, 2019


Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.