If you want a jawline chewing gum that will definitely give your jaw a workout, then investing in a mastic gum will do the trick. Unlike regular gum that you buy from the store that is soft and lasts for about 15-60 minutes, the mastic gum can last for up to 6 hours.
If you need to chew to redefine your jawline, then this is an inexpensive solution that you can invest in.
After chewing on this gum consistently over 60 days, you should start to see your jawline protrude and become more rigid.
This is also a natural product (hardened sap from a tree). The taste does require getting used to, but it is tolerable if you simply want to chew to get that perfect jawline.
If you want a more chiseled or sharpened jawline, add this to your collection.