FOR NAIL BITERS WHO ARE DONE BEING NAIL BITERS
Regrow Club is a click pen loaded with the most bitter substance ever recorded. Swipe it on. The second your finger hits your mouth, your tongue files a complaint your brain can't ignore.
“What is THAT?!”
— everyone, first bite
LET'S BE HONEST
That's why “just stop” has never worked. Biting is an autopilot habit. It happens while you're thinking about something else. Willpower only works when you're paying attention, and you're never paying attention when you bite.
You don't need more willpower. You need an alarm on your fingertips.
WHY BITTER WORKS WHEN NOTHING ELSE DID
Humans are wired to reject bitter instantly. It's the oldest “spit that out” reflex we have. Regrow Club hijacks that reflex. Every bite becomes an instant, unmistakable NOPE, and after enough NOPEs your hands stop heading to your mouth.
THE BITTERNESS SCALE
Denatonium benzoate is roughly 1,000× more bitter than quinine.
CUE
Stress, boredom, a red light, a scary email. Your hand drifts to your mouth.
BITE
Your teeth touch your nail. Same as always. Except…
🤢 BLEH
A wall of bitter hits your tongue. You snap out of autopilot. You notice.
REWIRE
Repeat a few days and your brain files biting under “disgusting”. The urge fades.
10 SECONDS. TWICE A DAY.
Twist the end
Each click pushes fresh bitter liquid to the brush. No drips, no spills, no bottle.
Swipe every nail + cuticle
Paint the nail and the skin around it. Dries clear in seconds. Polish over it if you like.
Reapply after washing hands
Morning, night, and after every hand wash. The more often, the faster it works.
THE #1 RULE OF REGROW CLUB
Biting doesn't wait until you get home. If your pen is in the bathroom and you're in traffic, you lose. Nail biters who win keep a pen within arm's reach everywhere. That's why we sell packs, not single pens.
The car
Red lights are prime biting time.
Your purse
Reapply after every hand wash, anywhere.
Your desk
Deadlines, emails, calls. Peak autopilot.
Your nightstand
Scrolling in bed is a biting trap.
9 pens · $11.99/pen · free shipping + all bonuses
NEW TO YOU, ALREADY LOVED BY HUNDREDS
4.8
★★★★★★★★★★Based on 98 reviews
97%
rate it 4 or 5 stars
CUSTOMER PHOTOS (30)
This stuff is nasty! Which is what you want when you need to stop biting your finger nails. I’ve been a biter all my life this stop stopped me on day 1. Word of caution is it is strong and if you enjoy finger foods was your hands very well before eating.
I have an anxiety disorder and have bitten my nails for like 20 years. My nails always look bad, my teeth are damaged, and my fingers are always red and bleeding. I don’t ever really know I’m doing it- it’s completely subconscious! I’ve tried tons of other stuff: I would bite off press ons in 2 days, I managed to make acrylics lift (and subsequently ripped them off and damaged my nails SO bad), I’ve tried wearing gloves, and of course I have tried bitter nail polish. Nothing has worked and I just accepted this was how I was going to live life lol. I’m getting married soon and I decided I wanted to try one more time to fix my habit and bought Regrow club as kind of a hail mary. Friends, this is the nastiest most vile tasting stuff ever. I brushed my teeth literally 10 times the first day I had it on. That didn’t help, the taste lingered. I learned VERY quickly to not put my fingers in my mouth. This pen is so unbelievably awful and disgusting that I have nails for the first time ever!!! It is easy to apply and carry with me, but the stuff doesn’t really wash off with basic hand washing so I don’t need to reapply that often (I still do, but). It has no smell and no weird greasy or oily feeling as well as basically zero drying time. It feels just like really disgusting water lol. 100/10 recommend!!!!
My four year old bites his nails till he bleeds. I couldn’t get him to stop no matter how much I redirected. With the pandemic I don’t want him putting his hands in his mouth so we tried this. It goes on super easy, you just click it for more of the product. Takes seconds to apply and seconds for it to dry. A little goes a long way!!!!! There is no smell to it, but let me say. The taste is baddddd. I only got a little on my finger and somehow tasted it and it’s more bitter than you could ever imagine. Let me warn you, when my son bite his nails he started drooling a lot and did some sort of weird spitting up thing. He thought it was hilarious and funny. He didn’t like the taste at all, but the whole thing would deter him from biting. I would not use this on anyone that has food aversions, sensory issues, or is too young. The product recommends no one under 4 to use it. It is very strong. I highly recommend this product and would purchase again.
I’m surprised how well this product works. I apply the solution to my nails in the morning after I take a shower. It dries almost instantly and it lasts all day. You can’t see any residue on the nails. It doesn’t feel sticky. The taste is really awful. It’s a bitter taste that makes you immediately mindful your nail is in your mouth. I’ve tried other similar products in the past and it doesn’t last or it looks gross. I just started using this so I can’t say it fixes nail biting completely, but the product is great.
this is the most satisfied I have been with a product in a very, very long time. I would recommend this to anyone with a nail-biting/chewing habit they want to kick! I have been biting my nails excessively for years at this point and have never successfully stopped for more than a week. since I started using this product, which I am using in tandem with cuticle oil and nail polish, I haven't even put my hands in my mouth let alone bit my nails after accidentally starting to chew on one when I forgot I had this product on. the taste was so offputting I haven't done anything like that since! it's been almost a month and my nails have grown out to be the longest they have been in years. I have tried similar "bad tasting" products but none have worked as well as this one. it's easy to carry around with me, it lasts long enough that I only have to apply it twice a day, and it dries very fast so I can go about my business shortly after applying it! love it. absolutely no notes.
I have been using this for a few weeks now and am really pleased with it so far! The taste is awful and sticks around even after washing my hands. I only need to apply it once a day and you can’t even tell there is anything on my nails. I tend to bite the skin around my nails as well and I have stopped doing that because the taste from the nails is unavoidable even when trying to bite around them.
I didn’t expect a pen to fix a habit I’ve had since I was a kid… but here we are. I’ve been a chronic nail biter for YEARS. Stress, boredom, driving, watching TV — didn’t matter. I’d catch myself doing it without even thinking. I’ve tried the bitter nail polish, fidget toys, even willpower alone (yeah… that didn’t last long). Nothing stuck. Then I found the Regrow club Click Pen — and honestly, this thing is different. First off, it’s subtle. It looks like a regular pen, so I can use it anywhere — at work, in the car, on the couch — without feeling weird about it. Every time I get the urge to bite, I just start clicking it. That simple action interrupts the habit loop immediately. And here’s the crazy part: it actually retrains your brain. Instead of going: urge → bite nails → regret It becomes: urge → click pen → move on After about a week, I noticed I was reaching for the pen automatically instead of my mouth. That’s never happened before. What I love most: • No gross taste or chemicals • No damage to nails or skin • Works instantly in the moment • Portable and discreet • Actually helps build a new habit instead of just punishing the old one My nails are finally starting to look normal again. That alone is worth it. If you’re someone who’s tried everything and keeps falling back into nail biting, this is 100% worth trying. It’s simple, but it works — and sometimes that’s exactly what you need. Didn’t think I’d ever say this, but… I might finally be done biting my nails.
HALEILUIA!!!!! IT WORKED!! My Mother is 84 yrs old and has been chewing her nails and then the skin around her nails until they bleed .......for 84 yrs!!! So I chose this brand for a start to my journey of nail chewing prevention. I first very skimpily tasted it to see how it was going to work. WOW....Drastic measures for a drastic habit. There is no taste or smell, just extremely bitter and long lasting. This may deter eating because if tasted, it affects your tasting food properly. I did give my mom a lozeng to help relieve the bitterness in her mouth. It did help relieve it. But I ordered 2.....Just in case LOL
Best thing I ever bought, I have placed it in my nails 1 week ago and it has still been bitter to the taste and I use it on 3 weeks. No mater how many times you wash hands or put lotion or try to take it off it don’t come off
I bought this originally to put on my three year old who sucks her thumb. She powered through and kept sucking unfortunately. I didn’t want to let this go to waste so I decided to try it on my nails, since I’ve been biting my nails for 34 years. The first day was super gross. I kept biting but the taste was really gross, so each time I bit was pretty bad. It went on this way for about three days. On the fourth day, I would just bring my fingers near my mouth but not bite. On the fifth day, I didn’t even bite anymore. After day six I didn’t put on the the Polish and found myself not biting anymore, just occasionally bringing my fingers near my mouth but not biting. After about three weeks my nails were actually long. Super weird feeling. I went to cut my nails and realized I’ve never actually ever cut my nails in my life. I had to have my husband cut my nails, because it was just so awkward. Super embarrassing as a grown women to have never cut my nails and to have biten my nails for so long. Glad I bought this despite it not working for my thumb sucker, at least it worked for a life long mail biter.
this is a great product!!! i got it two weeks ago and haven’t bitten my nails since i started using it. it actually tastes SO BAD, though, that i gagged the first few times i tasted it. its still super gag worthy now but its not as jarring. still a great deterrent because i actually never want to taste it again!! my only issue with it is the same as my issue with any of these products so it can’t really be helped, but it’s that when i eat snacks or something and i accidentally get my fingers in my mouth the taste is sooo bad. so yeah it’s just annoying that it can accidentally get in your mouth while eating stuff but it certainly works to stop biting!! you definitely have to apply it at least twice a day like the directions say as it will fade after awhile, but i do appreciate that by the next day the taste is gone so it does go away if you want it to. i attached pictures and with my track record, that is actually a lot of growth!!
This stuff tastes like pure misery… and that’s why it’s awesome. Second stick I purchased (first one “allegedly” lost, but likely thrown away by wifey when I kept leaving it out). Lasts through handwashing. Will definitely work on kids, but IMO could be a bit too strong for tiny people (6 and under). Definitely recommended.
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Loaded with denatonium benzoate, the most bitter substance ever recorded. One swipe and your next bite becomes the worst thing you've tasted all year. Your brain learns fast.
1. HOW MANY BITE ZONES DO YOU HAVE?
FREE WITH YOUR 6-PACK
$12.99 per pen · cheaper than one manicure you'll bite off by Friday.
FREE BONUSES · UNLOCKED BY YOUR PACK
The 30-Day Bite-Free Program (ebook)
$19.00 FREE
Emailed instantly after checkout · every pack
Bite-Free Tracker card + stickers
$9.00 FREE
Ships in your box · 6 & 9 packs
Crystal Glass Nail File
$14.00 FREE
Ships in your box · 6 & 9 packs
YOUR FIRST 30 DAYS
MINUTE 0
Your 30-Day Bite-Free Program lands in your inbox the second you check out. Start reading before the pens arrive.
DAY 1–7 · AWARENESS
Pens everywhere. Swipe twice a day. Every bitter jolt is your brain catching you in the act. Map your triggers.
DAY 8–21 · REPLACE
Swap the bite for something else: the glass file for snags, a fidget for stress. Start the sticker tracker.
DAY 22–30 · LOCK IN
The urge fades. Nails start showing white tips. Keep the pens out, because relapse loves an empty desk.
WHAT'S IN THE PEN
The bitter side does the breaking. The nourishing side takes care of the nails and cuticles you've been chewing on for years, so they look better while they grow back.
DETER
Denatonium Benzoate
Wintergreen Leaf
NOURISH
Aloe Leaf Juice
Ginger Root
Allantoin
Cruelty-free. Clear, odor-light formula. Full ingredient list on the box.
| REGROW CLUB | Bitter polish | “Just stop” | Bandaids / gloves | |
|---|---|---|---|---|
| Stops autopilot biting | ● | Sometimes | ✕ | ✕ |
| Most bitter substance on Earth | ● | ✕ | ✕ | ✕ |
| Covers cuticles, not just nails | ● | ✕ | ✕ | ● |
| Clear and invisible | ● | Glossy coat | ● | ✕ |
| Carry it everywhere (no spill) | ● | ✕ | ● | ● |
| Nourishing ingredients | ● | ✕ | ✕ | ✕ |
| Built-in 30-day program | ● | ✕ | ✕ | ✕ |
WE JUST LAUNCHED IN THE US
We're brand new to the US store, so we're giving the first 500 customers launch pricing, the full bonus stack, and a direct line to the founder. Send us your Day 1 and Day 30 photos and we'll send you a free refill.
Launch pricing
The lowest per-pen price we'll ever offer
Free refill
For your Day 1 + Day 30 photos
Founder line
Real humans, real replies, within 24h
90
DAY
BITE-BACK
Use Regrow Club for up to 90 days. If it doesn't make biting taste awful enough to stop you, email us and we'll refund your order. No forms, no “send it back first”, no guilt trip.
TRY IT RISK-FREE →Bitter enough that most people make the face in the photo above on their first bite. Denatonium benzoate is used to make household products taste so bad nobody can swallow them. We put it on your nails.
If you touch food with your fingertips, you might. Wash your hands before eating, then reapply after. Most members say they get used to the routine in a couple of days.
Twice a day and after every hand wash. That's exactly why you want a pen in every place you spend time.
Because biting happens in the car, at your desk, in bed and on the couch, not in your bathroom. One pen at home leaves every other place unprotected. More pens = fewer slip-ups.
Yes. Swipe the skin around the nail too. Avoid broken or bleeding skin.
Ages 4+ with adult supervision. Many parents keep one pen in the backpack and one by the bed.
Yes. Swipe it on, let it dry, polish over. Reapply on top of polish too.
No. It's a one-time purchase. No hidden recurring charges. Reorder whenever you run low.
We ship worldwide. Orders ship within 1–3 business days and arrive in 4–10 business days. Shipping is free on orders of $50 or more (every 6 and 9 pack) and $6 below that. Your ebook arrives instantly by email.
The 30-Day Program ebook is emailed the minute you order. The glass file and tracker card ship in the same box as your pens.