Nail biting ends here.

The world’s easiest habit killer.

GET THE PEN
  • Stop nail biting
  • Supports healthier-looking nails
  • Invisible. Odorless.
QUITS — The nail biting pen

You’ve tried to stop… now try with backup

You don’t need more willpower.
You need backup.

See How It Works

How it
works

Apply

Every morning —

Apply

Resist

Whenever the urge hits —

Resist

Grow

Day after day —

Grow
Get the pen — $18

What's
inside?


A structural protein that conditions and strengthens the nail surface, helping restore what years of biting have damaged.

A key B vitamin that supports healthy nail appearance and overall nail conditioning.

A deep-penetrating conditioner that nourishes the nail and surrounding skin, leaving it visibly healthier over time.

A mineral complex that helps maintain nail integrity and supports the overall conditioning benefits of the formula.

The most bitter compound known to science. Applied at maximum legal concentration to make nail biting immediately unpleasant.

Stop biting Start healing.

Real results

30-day
transformation.

Healthier nails. Stronger habits.
A version of you that sticks.

DAY 0Bitten nails before using QUITS — day 0
DAY 30Healed nails after using QUITS — day 30

Stronger nails

Helps stop the urge and supports healthy, longer nails.

Natural formula

Designed for real life. No harsh chemicals, no glossy finish.

Visible results

Most people see improvement in just 2–4 weeks.

Your journey to

healthier nails starts here.

Get the pen

QUITS The Pen

The clear, bitter pen that makes nail biting impossible to ignore.

  • Bitter on contact, every time
  • Dries invisible with no shine
  • Conditions with keratin and biotin
  • Pocket-sized, 12-second application

How many pens? Buy more. Save more.

2 Pens

One-time purchase

$32 Regular price $36

$16 / pen

Why QUITS?

Nail biting runs on autopilot. You're in a meeting or scrolling your phone, and before you know it you're biting again. QUITS puts a bitter layer on your nails, so the moment one reaches your mouth you notice, and stop.

It dries invisible with no shine, and conditions with keratin and biotin while the habit fades.

Ingredients

Key ingredients: Denatonium Benzoate, Hydrolyzed Keratin, Biotin (Vitamin B7), Panthenol (Provitamin B5), Zinc PCA.

Full list: Water, Propylene Glycol, Hydrolyzed Keratin, Panthenol, Zinc PCA, Hydroxyethylcellulose, Sodium Benzoate, Potassium Sorbate, Biotin, Denatonium Benzoate, Citric Acid.

How to use
  1. Brush a thin coat over each nail.
  2. Let it dry. It goes on clear with no shine.
  3. Reapply after washing your hands.
Shipping & guarantee

Free US shipping on orders $30+. Orders ship within 2 business days.

Every pen is covered by our 30-day money-back guarantee. Read the refund policy.

Ingredients

Denatonium Benzoate. The most bitter compound known to science. It makes biting immediately unpleasant.

Hydrolyzed Keratin. A structural protein that conditions and strengthens the nail surface.

Biotin (Vitamin B7). A B vitamin that supports healthy nail appearance and overall conditioning.

Panthenol (Provitamin B5). A conditioner that nourishes the nail and the skin around it.

Zinc PCA. A mineral complex that helps maintain nail integrity.

Full list: Water, Propylene Glycol, Hydrolyzed Keratin, Panthenol, Zinc PCA, Hydroxyethylcellulose, Sodium Benzoate, Potassium Sorbate, Biotin, Denatonium Benzoate, Citric Acid.