when is the right time to start on anti-aging creams?

Again, in continuation with my last post, the other thing that teenagers obsess about constantly are skin care products, which is an obvious result of anyone having any kind of skin problem. The skin care segment is a gigantic sector, but the two areas that make the most money are the teenage segment and the mid to older segment to whom companies market the anti-wrinkle creams and so forth. Interestingly, the second segment used to target only 50+ women, but now all anti-aging creams focus on starting using these creams by the time you're in your late 20s itself. Is that really required? I doubt it, but fear is a good marketing gamble.