Mayena Jaw Exerciser for Men & Women | 4 Resistance Levels (8pcs) Silicone Jawline Exerciser Set | Powerful Jaw Trainer & Jawline Shaper for All Level Users | Slims, Tones & Defines the Face

I’ve been using the Jawline Exerciser for about a month now, and I’m genuinely impressed with the results! The set comes with 4 different resistance levels, which is great for starting off light and working your way up to more challenging exercises. The silicone material feels comfortable in my mouth, and the tablets are easy to grip between my teeth without slipping.One of my favorite things is how convenient they are. I can use them while watching TV or working at my desk, so it fits perfectly into my daily routine. I started to notice a difference in the definition of my jawline after about 2 weeks of consistent use. My face feels more toned, and I even feel like my double chin is slimming down a bit.This set is great for all fitness levels, and the fact that it includes 8 pieces gives you flexibility as you progress. The different resistance levels make it easy to challenge yourself gradually, so it never feels too overwhelming. If you're looking for a simple and effective way to tone your face and improve your jawline, I highly recommend giving these a try!Pros:Variety of resistance levels for gradual progressionComfortable silicone materialNoticeable results in just a few weeksEasy to use anywhere and anytimeCons:Can cause mild soreness initially (but that’s expected with muscle training)

Very good ..

Easy to chew and use. So far it hasn’t worn out completely yet but I’ve also been using it for only a day haha. I love the difference weight levels the variety of options is amazing. Pretty good product

These statements are based on personal research and observation.First of all, these devices may contribute to or cause TMJ, according to many other reviews I've read along with my own "clicking" after using doing the exercises every other night for about two weeks.They can also, actually, contribute to or cause tooth damage. This is based on my own experience in using this exact product. Shortly after beginning a regimen with these, I started having what felt like cavity pain. Went to the dentist, no cavities. Dentist explained that teeth have high compression, but low tensile strength. Meaning, they can be "split" open with micro fractures which are impossible to see. These types of fractures are well known, but usually caused by teeth grinding and such. That's not the case for me because I wear teeth guards/retainers (plastic that covers all of my teeth at night) bc of prior ortho work.Then it hit me, and I explained to the dentist that I was using these. Upon discussion, it seemed plausible that the clamping down could provide a splitting force due to the V shape of teeth, whereas the tops of the V (the peaks) are being pushed apart in opposite directions.There should be a clear warning outlining the risks associated with use of a device such as this, and both of these should be things mentioned to look out for, so that users don't go on continuing to use them if/when such problems arise.UPDATE: Customer service was helpful and stand behind their product. As far as the products of this type go, this is a good value. But, people should know with this and any product like this what potential risks are involved. It would be fairer if I went around leaving this notice on all products of this type, but aint nobody got time for that.

I have a super sensitive gag reflex, which is triggered when I put two of these in my mouth. My work around is to use one at a time, switching sides after a while. When you chew gum you only chew on one side, so I assume this works just as well as mastic gum.

The grey and blue (1st 2 levels) broke at the seams after 3 days of heavy use (3 hours per day) each. I expect the last 2 levels (red and black) will also break since it is happening at the seams. Shame since they were good while they lasted but wont last long at all. Worthless purchase in my opinion.

Well these were my son's. I see the changes in his facial appearance. He says they are doing what it says they do.

The media could not be loaded. First week using the black lvl of the product and it broke. Went through all the other levels with minimal damage to where it could be used for a few more weeks. Though the first week using the black level it broke while I was mid workout. Take a look at the video.