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Dr Dana Precision Glass Nail File


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Regular use of our Precision Glass Nail File strengthens and seals the nail’s keratin layer, to make nails more resistant to splitting, peeling, and breakage.

Designed for natural nails: Many nail files, including crystal, glass and traditional emery boards, are too abrasive for natural nails and can cause microscopic tears at the tip of the nail that lead to breakage, damage, and premature polish chipping. Natural nails—especially if they are delicate, damaged or fragile—require a completely different technology.

In the above image taken with a scanning electron microscope, you can observe the clear difference between a nail filed with a traditional emery board file and one filed with our Precision Glass Nail File. The nail filed with the Dr. Dana file is smooth, even, and free of damage. Our Nail File features a high-performing precision technology grit to gently shape and contour natural nails for a smooth edge. Even weak or brittle nails can be filed in any direction with no harm to the nail.

Nail strengthener: Regular use of our Precision Glass Nail File will strengthen the nail and result in LESS splitting, peeling, and breakage.

Longer-lasting manicure: Our glass file creates a smooth nail edge, which will minimize snags and allow nail polish to adhere better, last longer, and chip less.

Long-lasting and sanitary: The file’s nonporous, double-sided design never dulls and is naturally hygienic.

Travel-friendly: This glass file includes a protective carrying case for easy transport and storage.

Developed by a board-certified dermatologist: Dr. Dana Stern is the only dermatologist in the country who devotes her entire practice to nails—including diagnosis, treatment and surgery—and is a leading nail expert in the media. She is also the first dermatologist to develop a nail renewal system to improve the health of nails.

 Directions: File dry, natural nails to desired length. After use, clean with water and allow to air dry.

Click Here to get your custom nail consultation with Dr. Dana.

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Customer Reviews

Based on 14 reviews
Bertha Martinez

These make wonderful gifts.

Claire DeBerg

My nails have stayed beautiful and free of jagged edges since I started using the glass nail file. I've got my whole family hooked on the glass nail file! I'll need to buy one for each person!

Lisa Sutterfield
Love it!

Never used a glass file before but love all of her products!

Ang c
I like it a lot, satisfied

I got this to file the hard skin on my fingertips. I'm a massage therapist, so I was hoping to find something for the pointy and scratchy hard thick dried hang nails and where the skin dries off and doesn't quite enter underneath the nail bed. This does the job decently well! I feel satisfactory about my fingertips for the most part. And I also use it to dull my nail ends.

Charles Gustin

Ease of use, quality of the product and it doesn’t dull with use. These are attributes that are missing in other products. Well done Dr Dana