Vitamin A creams are available in different strengths, i.e. some have higher levels of retinol properties in than others, and the higher the levels, the higher the potential to impact the skin.
Over-the-counter products are a weaker version, which means the retinol they contain isn’t as potent as their prescription-strength counterparts.
However, due to the very nature of how retinol works, it reportedly can cause the skin to become red, sensitive, dry and flaky in the early days until your skin gets used to it.11
This is one of the main reasons why it’s extremely important you follow the less is more rule to applying it, especially if you’ve never used it before or are trying out a new product for the first time.