I am 24 and I have been using those anti-aging creams to prevent wrinkles in my old age. Do they really work?

In my field of work I deal with a lot of elders. I have grown cautious of how I take care of my skin in my youth. I have been using some anti-aging products and I was wondering if there are any studies that show that these products actual work. I can't see myself using Botox or having surgery later on in life, but I still want to look "fresh" and wrinkle free. I have also heard and (see) that the more melanoma in the skin, the better the skin ages. There are some 40something black women in my master's program and I swear they look 25! Plus, I see women in there 50s who use to tan and they look extremely wrinkled. Is there something black women are using that the rest of women don't know about?