How to Sharpen Plastic Lip Liner: 3 Convenient Tips

by  Mila M.Cosmetologist

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Are you struggling with how to sharpen your plastic lip liner? This can indeed be a tricky process, as not all lip liners are made equally. In this post, we’ll guide you through an array of different techniques that will make sharpening your lip liner easier than ever before! So get ready for some serious makeup tool hacks.

  • Choose the right sharpener for your plastic lip liner to ensure a precise and clean tip.
  • Apply gentle pressure while sharpening to avoid damaging the pencil or breaking off the tip.
  • Regularly clean your sharpener to maintain its functionality and prevent product residue buildup.
  • Alternative methods include using a sharp knife, freezing the lip liner before sharpening, or DIY methods like scissors.

Different Types of Lip Liner Sharpeners

There are two main types of lip liner sharpeners: manual sharpeners and electric sharpeners.

Manual sharpeners

Manual sharpeners offer a conventional and practical way to maintain your favorite lip liners. These handy tools come in different shapes and sizes, specifically designed to accommodate various types of cosmetic pencils.

Their main function is straightforward: insert the lip liner into the hole, apply gentle pressure, then rotate either the sharpener or pencil around until you achieve a fine point.

As they are compact and lightweight, manual sharpeners take up minimal space in your makeup bag making them ideal for on-the-go touch-ups. This old-school method provides precision control over how much product you shave off— an advantage when dealing with costly or beloved shades that you wouldn’t want to waste! Manual sharpeners also allow for easy cleaning which can help prolong their usage life significantly.

Regular maintenance is crucial because accumulated product residue may hinder its performance over time, leading to less-than-stellar results when trying to achieve that perfect sharp tip on your plastic lip liner.

Electric sharpeners

Electric sharpeners are a convenient option for sharpening plastic lip liners. These sharpeners use an automated mechanism to quickly and efficiently sharpen the pencil without any effort on your part.

Simply insert the lip liner into the sharpener, and it will automatically rotate and sharpen the pencil to a precise point. Electric sharpeners are especially useful if you have multiple lip liners that need to be sharpened regularly or if you have difficulty using manual sharpeners due to hand or wrist pain.

They offer a hassle-free way to keep your plastic lip liners sharp and ready for application, saving you time and effort in your beauty routine.

Pros and Cons of Each Type

Manual sharpeners offer a budget-friendly option for sharpening plastic lip liners, but they may require more effort and time. Electric sharpeners provide convenience and efficiency but can be expensive and may not fit all sizes of lip liners.

Manual sharpeners: pros and cons

Manual sharpeners are a popular choice for sharpening lip liners due to their affordability and portability. They are easy to use, requiring nothing more than a simple twisting motion to sharpen the pencil.

Manual sharpeners also give you more control over how sharp you want your lip liner tip to be. However, one downside is that manual sharpeners can sometimes lead to uneven or jagged tips if not used correctly.

Another consideration is that manual sharpeners may not work well with softer plastic lip liners, as they tend to break or crumble more easily during the sharpening process. So while manual sharpeners have their advantages, it’s important to keep these potential drawbacks in mind when choosing the best method for keeping your plastic lip liner perfectly sharp and ready for application.

Electric sharpeners: pros and cons

Electric sharpeners can be a convenient option for sharpening your plastic lip liners. One of the main advantages is their speed – they can quickly sharpen your pencil with little effort on your part.

Electric sharpeners are also known for producing precise and consistent results, ensuring that you get a perfectly sharp tip every time. However, there are some drawbacks to consider as well.

Electric sharpeners require batteries or electricity to function, which means you may need to have a power source nearby. They can also be more expensive than manual sharpeners and may not be suitable for all types of lip liners.

3 Tips for Effectively Sharpening Lip Liner

To effectively sharpen your plastic lip liner, make sure to use the right sharpener for the brand and size of your pencil.

Using the right sharpener for the brand and size

To achieve the best results when sharpening your plastic lip liner, it is crucial to use the right sharpener for the specific brand and size. A cosmetic pencil sharpener designed specifically for lip liners will ensure a precise and clean tip without damaging the plastic material.

Different brands may have different sizes, so make sure to choose a sharpener that fits your lip liner perfectly. By using the appropriate sharpener, you can maintain the quality of your lip liner and prolong its lifespan.

Proper technique for sharpening

To sharpen your plastic lip liner pencil, start by using a sharpener specifically designed for cosmetic pencils. Place the pencil inside the sharpener and gently twist it around to remove the outer layer of plastic and expose more product.

Apply gentle pressure while sharpening to avoid damaging the pencil or breaking off the tip. Remember, it’s important to use a sharpener that is suitable for your brand and size of lip liner for the best results.

Be cautious when sharpening plastic lip liners as they can be more delicate than other types of pencils. By following these steps, you’ll be able to maintain a precise point on your lip liner for flawless application every time.

Cleaning the sharpener regularly

Regularly cleaning your lip liner sharpener is essential for maintaining its functionality and preventing the buildup of product residue. To clean your sharpener, start by removing any remaining pencil shavings from the blades.

Then, use a small brush or cotton swab dipped in rubbing alcohol to thoroughly clean the blades and remove any product residue. Make sure to dry the sharpener completely before using it again to prevent any moisture damage.

By regularly cleaning your sharpener, you’ll ensure that it stays in optimal condition and continues to provide you with perfectly sharpened lip liners every time.

Alternative Methods for Sharpening Lip Liner

There are a few alternative methods you can try if you don’t have a lip liner sharpener on hand.

Using a sharp knife or blade

To sharpen a plastic lip liner without a sharpener, you can use a sharp knife or blade. Be careful during this process to avoid injuring yourself. Gently hold the lip liner pencil in one hand and use the other hand to carefully shave off the dull part of the tip with the knife or blade.

Rotate the pencil while applying light pressure for an even sharpening. This method requires precision and caution, so take your time and be mindful of safety.

Freezing the lip liner before sharpening

To make sharpening a plastic lip liner easier, try freezing it beforehand. This helps to firm up the texture and prevent breakage while sharpening. By placing your lip liner in the freezer for about 10-15 minutes before sharpening, you’ll have a more precise and smoother result.

Just remember to handle it carefully when removing it from the freezer, as extreme temperature changes can cause some pencils to crack. So give this simple trick a try for hassle-free lip liner sharpening!

DIY methods for sharpening

To sharpen your plastic lip liner at home, there are a few DIY methods you can try. One option is to use a small sharp knife or blade. Gently and carefully shave off the outer layer of the pencil until it becomes sharp again.

Another method is to freeze the lip liner before sharpening. Place the pencil in the freezer for about 10 minutes to harden it, then use a regular pencil sharpener to get a precise point.

Finally, if you don’t have access to a sharpener, you can also try using scissors. Carefully trim the tip of the lip liner until it’s nice and sharp. Just remember to exercise caution when attempting these DIY methods and make sure not to damage or break your lip liner in the process!


Sharpening plastic lip liners requires some careful techniques and the right tools. Whether you choose a manual sharpener or an electric one, make sure it is suitable for cosmetic pencils.

Remember to apply gentle pressure and twist the pencil around while sharpening. If you don’t have a sharpener on hand, options like using an X-Acto knife or scissors can also work.

With these tips in mind, you’ll be able to keep your plastic lip liner perfectly sharp for precise application every time.


1. What is the best way to sharpen plastic lip liner?

You can use specialized pencil sharpeners for lip liner or adopt techniques of sharpening without a sharpener, like using a knife or sandpaper.

2. Can you share some tips for sharpening my NYX twist-up lip liner?

Sure! If it’s not self-sharpening, manually twist up the lip liner then carefully cut away excess with a clean knife. After, round off edges with fine sandpaper ensuring no damage to your luxe luminous product.

3. Is there any step-by-step guide available on how to sharpen lip pencils effectively?

Yes! Begin by freezing the plastic lip liner for about 10 minutes before you start. Then, using your chosen tool (plastic lip liner sharpener or other methods), slowly and gently begin to shave off layers until you achieve the desired point.

4. Are there specific brands that offer products designed specifically for plastic lip liners?

Indeed! Many popular brands like NYX produce their own line of tools including special pencil sharpeners specifically devised for use on plastic liners.

5. Besides proper care in application, are there any other valuable hacks when handling these types of liners?

Absolutely! For optimal results during make-up routines; consider chilling them before application and always remember – patience goes a long way when trying various techniques and tricks for applying or maintaining your favorite product’s shape.

How to Sharpen Plastic Lip Liner: 3 Convenient Tips
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Mila, the veteran beauty cosmetics professional and author of this article, while cutting and styling the hair of her client

Hi! I’m Mila M. I share my 44 year-experience as a Cosmetologist & Beauty Professional in this blog. This content is for educational purposes only and does not constitute professional advice. Consult your trusted Beauty Professional for your personal beauty needs.

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