What are Retinol Moisturizers I can use to prevent wrinkles but keep my freckles?

I have freckles, and they get very dark in the summer and I love them! I have been using Olay Max retinol moisturizer to help prevent wrinkles. This summer I noticed my freckles were virtually non-existent. I am wondering if it's because of the retinol in my moisturizer? If so, what other drug store moisturizers can I use to help with wrinkles, but keep my freckles!?