Is there a way to get thinner lips naturally?

is there anyway to get thinner lips naturally? I am a guy so make up is out of the question. I've heard of putting caffeine cream on lips which would reduce puffiness and a product called Demirex which many say is a scam lip balm that does nothing ingredients are octinoxate, octisalate, oxibenzone, soybean oil, beeswax, shea butter, cocoa butter, vitamin e, sunflower oil, aloe vera, FD&C colors & flavor. Please anything would help tremendously.