Bitter $19 nail polish claims to curb nail-biting habit
A $19 bitter-tasting nail polish sold on Amazon is marketed to stop nail-biting and thumb-sucking, with users reporting mixed results.
Sisquoc Healthcare offers a nail-biting deterrent polish for roughly $19 on Amazon, designed to create an unpleasant, bitter coating on the nails. The invisible layer is intended to make biting or thumb-sucking unappealing, with users likening the taste to “accidentally spraying cologne in your mouth.” The product is marketed as safe for both children and adults, recommended for ages three and up, and claims to show progress in a few weeks.
It dries clear, does not discolor skin, clothing or furniture, and can be layered under regular nail polish without affecting the bitter barrier. Each application remains effective for about six to eight hours before reapplication is needed. The product has amassed thousands of positive reviews despite varying individual outcomes.
Why it matters
It offers a low-cost, over-the-counter option for people seeking to break a common compulsive habit.
In this story