Retin A and Retinols – Prescription Retin A typically comes with an expiration date, which should be recognized for best results. Retinols lose some of their potency after 6-9 months, and those contained in an airless pump can be good for 1 year or more.

Does Retinol really expire?

Retinol, around six months. Mascara, around three months. Sunscreen [is about] two to three years.”

How long does retin a prescription last?

How long does tretinoin last? Initially, Tretinoin will start changing your skin after the first few nights of applying. Then you will go through the initial 2-4 weeks phase of your skin acclimating. Finally, the full effects are usually seen after 8-12 weeks of treatment.