I've been using the chewing gums for two weeks now, and I'm genuinely impressed. The medium-hard options have become part of my daily routine, and I chew the harder ones every other day for about 20 minutes. I definitely recommend them, but it's important not to overdo it with the hard and ultra-hard versions. Moderation is key.
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JAWLINER® is the inventor and manufacturer of the world's most famous jaw muscle trainer and the proud developer of the world's first Fitness Chewing Gum. A chewing gum with jawline guarantee :)
