The beautiful 40 year old celebrity Jennifer Lopez has a great younger looking skin.  Some of it is genetics and some is thanks to the advantage of being rich and famous which makes it easy having the best products at your fingertips.  However, there are some beauty secrets and simple tricks that are used by Jen for creating that youthful look: She wears a pale lip with a hint of shimmer, which makes your lips look fuller and more sexy, especially when you add dramatic eyes make-up, like she does.  But- her most important secret, just like Angelina Jolie, is to make sure her makeup is never overdone, which normally ages!