1. Retin-A is available in the US by prescription only. Ask you doctor about Renova or Retin-A Micro. These are formulations of Retin-A created to combat wrinkles. They are more moisturizing than Retin-A.
2. If you live in a very sunny climate, consider that you really need to keep your face out of the sun.
3. There will be redness and peeling at first. This is normal. Breakouts and hives are not.
4. I do not know about other countries and if you can get it without a doctor's prescription. (Sorry!) I can tell you that in the U.S. you need a prescription.