Onyx Professional Stop the Bite Nail-Biting Deterrent and File, 0.5 fl oz

My 4 year old was constantly chewing his nails to the point of bleeding. It only took a few days with this product to completely stop the behavior! If he even gets his hands near his mouth all I have to do is threaten to put it back on him and he stops immediately. It tastes terrible and it the bitterness lingers for quite awhile. I accidentally got some on my hand the first time I painted it on his nails and I covered my mouth when I sneezed and about a minute later when I licked my lips I almost gagged. I now understand why the first time he got it in his mouth he literally licked the wall trying to get the taste out :)

Bought this because I have 2 daughters one who's 6 and has sucked her fingers since she was born and my 3 year old who has sucked her thumb since birth I have struggled trying to get them to stop so I bought this as a last effort before buying hand and mouth guards. I put this product on both girls about 2 weeks ago and it was an instant success neither girl will put their fingers in their mouth I continue to reapply every couple of days just to make sure they don't start back up but I say this product is absolutely amazing it tastes horrible and definitely deters them from finger sucking I would recommend to anyone!

My daughter always had her index finger in her mouth so much so that it was pushing her teeth crooked . We tried bribing , bandaids but she would just suck them off at night . After a week using this product she hasn't sucked her finger in over a month. The taste is horrible and probably not good for you if you swallows it but it works and I'm glad I can take a picture of my daughter without her finger in her mouth.

Bought this for my sons, ages 3 and 5 both of whom bite their nails. My 5 year old quit the habit immediately. I kept the polish on him for 3 weeks to make sure. My 3 year old hasn't been bothered enough by it though. The product definitely works, the only variable is the people. You need to reapply every 2 to 3 days.

Wow! This stuff works. My three year old daughter has been sucking her index and middle fingers since she was very little. I can see that her front teeth are moving forward and she talks with a lisp. I knew I had to do something because I knew if I didn't kick the habit now she could suck her fingers after her other set of teeth come in, and since I can't take her fingers away I didn't want her to have an overbite. I did a little research and found this product. I decided to give it a try. Let me just say this. This stuff taste horrible and it lingers in the mouth. The first night I put it on my child she immediately was like aaawwwww yuk yuk!! Of course being a first time mom I felt horrible but knew it would be better for her in the long run. So after the second day of using it I watch her and notice she put her fingers in her mouth and immediately took them out with a sour face. Now its been five days and she doesn't even attempt to put her fingers in her mouth because I think she remembers the taste!!! YaaaYYY!!!! I am so thankful for a product like this!!!

My 2 year old loved the fact that he got a chance to paint his nails :). He was supper excited to apply it. It took 1 week for him to give up the habit. We applied it everyday for first week. Now the frequency has changed to 1-2 times a week.

love this - my 9 year old son's fingers are always in his mouth. Other products I have tried only last for hours but this lasted a whole week.

Being a cashier who touches at least 500 things in an hour, I need to kick the habit. Two coats twice a day is definitely an overkill. I did two coats in the morning one day and it lasted for about a day and a half. It does its job for sure, however, if you touch your lips, expect the taste to linger for the rest of the day. Don't even think about eating foods that require you to handle it!

Giving it 3 stars because it helped my 9 year old with his thumb sucking, however it did nothing for my 3 year old. As soon as you put it on he licked it right off. It does have a funny taste, I guess he rather sacrifice his taste buds just to suck his thumb. (sad face) I had high expectations about this product because of the reviews. I guess I have to start my search all over again to find a product for my 3 year old

I got this to stop my toddler from biting her nails and it didn't help at all. She actually bites her fingernails and toenails so frequently that she caused her toe to become infected. After using this she seemed confused about the taste, but quickly went back to biting. With my child's age I would not recommend it.