Hard chewing gum is particularly suitable for jaw muscle training (jawline training). The hardest chewing gum on the market to date is offered by JAWLINER: JAWLINER fitness chewing gum, available on Amazon or at jawliner.com
Yes, JAWLINER activates the jaw muscles, helps to grow them and make them stronger. JAWLINER is specially developed for this purpose and has a training effect on the jawline. It’s way more tougher than regular food or gum we chew, therefore it makes the jaw muscles stronger.