1) Some users have complained of redness, itchiness and other skin irritations due to Retin-A and that it is not that good on sensitive skin. Sometimes the time required for showing the results can be more than a week and the results largely depends on the skin’s condition.

2) Some other side effects of Retin-A include the skin discomfort in the form of sensitivity to sunlight. So if you observe this then use the best sunblock available.

3) Pregnant women should never use retin-A or who are breastfeeding. Results of Retin-A based wrinkle treatments, can take up to six months to show up completely.

4) Retin-A is an expensive treatment and comes with no money back guarantee.