Can you file press-on nails? Here's why you should be careful.

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When you receive a new set of nails, the temptation to customize their length or shape with a file can be strong. Many clients ask us, "Can I file my press-on nails to shorten them a bit?" or "Can I file the sides to make them fit better?"

The short answer is: technically yes. But the truth is, you risk irreparably ruining the structure of your set.

In this article, we explain why, as an independent brand focused on quality, we advise against filing your press-on nails.

1. The difference between plastic and professional gel

The press-on nails you find in department stores are often just pieces of molded plastic. In those cases, filing them doesn't make much of a difference because the material is unique and cheap.

Lunae Nails, on the other hand, are made with a professional multi-layer gel structure. This means that each tip has a base coat, multiple layers of color (or effects like cat eyes), and a final seal of top coat.

2. What does filing press-on gel nails involve?

Filing the edge or sides of a high-quality press-on means "breaking the seal." Here are the main risks:

  • Delamination: Once the sealed edge is removed, the gel layers may begin to separate. The shiny top layer may crack or lift, precisely because the bond created during the cure has been lost.
  • Loss of shine: By filing the tip, you expose the "heart" of the gel to air and moisture, making the edge more fragile and prone to chipping.
  • Cat Eye Effect Ruin: In magnetic sets, the particles are suspended in the gel. Breaking the structure can alter the refraction of light at the edge.

3. The solution? Take the measurements correctly

The secret to a flawless manicure isn't knowing how to file, but choosing the right size before purchasing . If the size is right, the nail will fit perfectly around your cuticle without needing any touch-ups.

How to find your perfect size?

We've created a detailed guide to help you measure your nails in minutes, using simple tools you already have at home.

👉 Check out our Size Guide here

Still have questions? Ask me for a consultation!

I know choosing the right size online can seem daunting at first. Because Lunae Nails is a project I personally curate, I'm here to help.

If you're unsure of your measurements or are unsure between sizes, please contact me. I'm available via DM on Instagram, live chat, or the contact form on the website. I'll be happy to provide personalized advice to ensure your set is the perfect fit.

4. What if I really need to do a little touch-up?

If for some reason you really need to file them, follow these rules to limit the damage:

  1. Use a very fine grit file (buffer).
  2. File in one direction , never back and forth frantically.
  3. After touching up, apply a thin layer of clear top coat to the filed edge to try to "reseal" the gel fibers.

Bottom line: press-on nails are designed to be a ready-to-wear piece of jewelry. Treat them with care and choose the right size. Your hands will thank you with a manicure that lasts for weeks and stays as beautiful as the first day.

Did you like this article? Read also:

Q: Is the file included in the kit for filing press-on nails? A: The file included in the Lunae Nails kit is primarily designed for preparing your natural nail (slightly dulling it to help the glue adhere better) or for small, precise touch-ups, not for changing the shape of the gel set.

Q: What happens if I file down the tip of a Cat Eye set? A: You risk removing the sealant layer that protects the magnetic particles, making the edge dull and less impact resistant.

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Frequently Asked Questions

  • With proper application of the included adhesives, our press-ons can last up to a week

    However, the duration can vary depending on lifestyle and the length of the nail applied: the longer they are, the greater the risk of accidental lifting.

  • Yes, if applied with the provided stickers and removed carefully, you can reuse them multiple times.

  • We ship our products throughout Europe.

    Please note that shipping rates may vary by region and will be calculated at checkout.

  • Each product includes a detailed guide to measurements, length selection, and the most suitable fit. We recommend consulting the Size Guide section on each product page.

  • Each Lunae Nails set includes:

    • The press-on nail set
    • 4 sheets of stickers
    • 1 file
    • 1 cuticle stick
    • 1 heart-shaped buffer
    • 2 alcohol wipes
  • For hygiene reasons, we cannot accept returns or refunds for personal reasons, such as changes of mind or requests for different sizes/styles.

    However, in accordance with the Right of Withdrawal (Art. 9 Directive 2011/83/EU) , you can return the products within 14 days of receipt, provided they meet the criteria indicated in the Return and Exchange Policy section.

Handmade

Handcrafted with care

Reusable

You apply them in a flash, remove them easily and use them again

Delicate

Safe and gentle, zero stress for your nails

Long Lasting

Up to three weeks with adhesive stickers