--- product_id: 202565358 title: "Onyx Professional Nail Biting and Thumb Sucking Treatment Cure Polish Pack of 3 Enhances Nail Growth, 0.5 fl. oz." brand: "onyx professional" price: "FREE" currency: TND in_stock: false reviews_count: 13 url: https://www.desertcart.tn/products/202565358-onyx-professional-nail-biting-and-thumb-sucking-treatment-cure-polish store_origin: TN region: Tunisia --- # Onyx Professional Nail Biting and Thumb Sucking Treatment Cure Polish Pack of 3 Enhances Nail Growth, 0.5 fl. oz. **Brand:** onyx professional **Price:** FREE **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Onyx Professional Nail Biting and Thumb Sucking Treatment Cure Polish Pack of 3 Enhances Nail Growth, 0.5 fl. oz. by onyx professional - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/202565358-onyx-professional-nail-biting-and-thumb-sucking-treatment-cure-polish) ## Best For - onyx professional enthusiasts ## Why This Product - Trusted onyx professional brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Fast acting to stop nail biting and thumb sucking problems. Brush on polish can be applied as top or base coat. Keeps nails strong and healthy while stimulating nail growth. Puts an end to nail biting for adults and children. Goes on clear with bitter taste to instantly start working. ## Features - About this item Keeps nails strong and healthy while stimulating nail growth Puts an end to nail biting for adults and children Goes on clear with bitter taste to instantly start working Includes (2) 0.5 fl. oz. bottles ## Images ![Onyx Professional Nail Biting and Thumb Sucking Treatment Cure Polish Pack of 3 Enhances Nail Growth, 0.5 fl. oz. - Image 1](https://m.media-amazon.com/images/I/91U6eFZagnL.jpg) ![Onyx Professional Nail Biting and Thumb Sucking Treatment Cure Polish Pack of 3 Enhances Nail Growth, 0.5 fl. oz. - Image 2](https://m.media-amazon.com/images/I/71XJqRmFtuL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐ Wasn't strong enough to break the habit for my kid *by G***D on Reviewed in the United States on April 8, 2018* I think this will work best with the addition of will power. In my case, I'm trying to stop a 4-year old from biting her fingernails. Will power doesn't come easily with a 4-year old. We applied this twice daily and it seemed to have worked for about a week, but then I noticed that she's back to biting her nails. It's as if she's spent the past week getting used to this taste so that she can bite her nails. Absolutely frustrating, yet simultaneously impressed that a nailbiting habit could be so strong to break.I tasted this product myself and it's not pleasant. But not revolting. Maybe that's the problem in my situation. Some of the reviews for the competing product by Mavala mentions that the taste is so bad that some people had stomach aches. I didn't think I needed something quite that intense. Additionally, we bought this product because the reviews for the Mavala brand mentioned how the horrible taste rubbed off on food they touched with their hands and their kids stopped eating. My 4-year old is picky enough as is and I didn't want to make that worse with a product that would make her eat even less. The good thing with the Onyx brand is that the taste from the nail polish didn't appear to transfer over to food. My daughter was happily eating chicken nuggets yesterday.I think for teens and adults who can muster up the will power not to bite their nails, this will be a great compliment to remind you to stop when your finger inadvertently makes it to your mouth out of habit. For those lacking such willpower, such as my little kid, it may not be as effective. I've broke down and bought the more expensive (and supposedly very powerful) Mavala nail biting solution. Hopefully that will work. ### ⭐⭐⭐⭐ Effective, but spreads to other surfaces *by K***M on Reviewed in the United States on September 5, 2018* My son sucked the middle and ring fingers on his right hand until he had callous building on the fingers. We tried many techniques to get him to stop, but to no avail, he continued sucking his fingers. He was constantly getting sick, because (let's face it) kids are germy, and pay no mind to the crud on their little fingers. It took five years, but we finally got him to stop sucking his fingers! Two weeks of wearing Stop the Bite, and he hasn't sucked his fingers in months!I also used the polish to stop biting my nails.The reason I am giving a 4 star rating, rather than a 5 star, is because if a person is eating finger food, they will taste the polish. Your fingers do not even have to make direct contact with the mouth in order to taste the strong flavor.... and it's a lasting flavor. ### ⭐⭐⭐⭐⭐ Works well - tastes nasty! *by M***K on Reviewed in the United States on September 1, 2018* Worked wonders for my 3.5 yr old son - he would bite his nails down to nubs and they would bleed, it was awful. The first time I put this on his nails and he instinctively went to bite them he cried because I took away his comfort habit, but I gave him some chewelry to chew on instead and after 2 weeks this is the result! He finally adapted to fingers not going in his mouth because it tastes yucky. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/202565358-onyx-professional-nail-biting-and-thumb-sucking-treatment-cure-polish](https://www.desertcart.tn/products/202565358-onyx-professional-nail-biting-and-thumb-sucking-treatment-cure-polish) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-20*