Clear Cases and Yellowing

There are a million things to love about a translucent case, but one big thing to hate: the fact that, no matter what you do or how hard you try, they always seem to turn yellow. Some turn yellow in days, others take weeks or are able to last months, but in the end, they all turn out the same: a dingy fade gives way to an ugly yellow which sometimes even turns a nasty shade of brown. We get it. We hate it, too. That's why we make clear cases that never turn yellow.

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But the fact of the matter is that most clear cases have this problem and it all has to do with what they're made of. What allows them to be a stunning, crystal clear case in the beginning is also what causes them to turn ugly over time.

Most of the clear cases you find on Amazon include some amount of silicone, a rubber-like material that's less protective than the TPU (thermoplastic polyurethane) found in our cases, and the main culprit behind yellowing. The more the silicone, the faster your case will turn yellow.

supcase clear case that doesn't turn yellow

The 3 main factors that cause cases to turn yellow

If you've had clear cases that either turned yellow right away or took a long time, here are the key factors that can speed up the yellowing process exponentially:

  1. Ultraviolet light

Just like their effect on our skin, the sun’s rays can age your clear case and turn it yellow. In this case, UV oxidation occurs, causing discoloration and imperfections.


  1. Oils from skin and products

It’s unavoidable, right? The only way to use a phone is to put it in direct contact with some of the most oily and product-ridden parts of our bodies – our faces and hands. Even if you don’t wear makeup or put lotion on, your body produces natural oils that can speed up the yellowing process of your phone case over time.


  1. Excessive heat

A surefire way to degrade the silicone in clear cases is to expose them to heat. Unfortunately, unless you live in an arctic tundra, the opportunity for heat-induced degradation is pretty much everywhere.


Don’t worry, it’s not all doom and gloom. Although some causes of yellowing are an inescapable part of our everyday lives, the good news is that now we know about them – and knowledge is power. Knowing the causes gives us a leg-up on practicing ways to avoid it. So if you don't own one of our non-yellowing clear cases, let’s look at a few things you can do to keep your case clearer longer.


3 ways to help keep your clear case from yellowing:

1. Clean regularly

Make it a weekly – or even daily – routine. The great thing about most clear cases is that they’re designed in one easy-to-remove piece. Make it a habit when you’re getting ready for bed to simply remove your phone case and give it a good wash with soap and water. Try washing it right before you go to sleep so the oils from your hands don’t sit on it overnight.

 2. Stay cool

The next time you’re headed to the beach, sitting by a bonfire, or cooking in the kitchen, try to make sure your phone is kept in a cool place. Not only is this recommended for the safety and functionality of your smartphone, but it’ll help with case yellowing as well.

3. Reduce oils

Let’s face it, you’re not going to stop using your face cream or favorite moisturizer for a phone case – and you shouldn’t have to. But consider using speakerphone when talking to friends and family at home. When not at home, use earbuds or headphones with a built-in microphone. Most of today’s smartphones have voice command and talk to text functionalities – use them!

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If you’re past the point of prevention and your case has already turned yellow (and you're not ready to trade it in for one of ours just yet), there may still be hope. These cleaning methods may not completely clear up your phone case, but they may help to reduce that dingy color.

 1. Magic Eraser 

Yes, those magic erasers you typically use on your walls. Their micro structure is perfect for removing stains, grime, and tough substances. They basically act as an extremely fine sandpaper that rubs off the surface layer that often holds most stains and discoloration.

 2. Soak in Bleach Water

Bleach won’t reverse oxidation, but its inherent whitening ability may be the ticket for removing unwanted coloration. Just be sure to dilute the bleach, wear gloves, and protect your hands when working with this corrosive agent.

3. Rubbing Alcohol

Known for its strong decontamination ability, rubbing alcohol is also commonly used to clean many technical devices and piece of equipment. Its strong aptitude for removing scuffs and stains could help to get your case looking like new.

If all else fails, then consider researching and buying a clear case that’s known for not turning yellow in the first place. The truth is, there are certain elements in each of our environments that can cause even the best quality clear phone case to discolor. However, buying quality from the start can save you time, money and headache in the long run.

If all else fails, then consider buying a SUPCASE! Containing no silicone, our clear cases are made of unbending polycarbonate and a unique TPU blend with special additives that prevent aging.

Not only do we offer completely clear bumper cases like the UB Style for iPhone 12, we're also the first to offer a completely clear, drop-proof rugged case like the UB Pro for iPhone 12, Galaxy Watch, Apple Watch, and more. That's a clear case you can trust to not turn yellow AND guard your most valuable devices with award-winning drop protection!

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Michael Tallon
Originally a Broadcasting major at the University of Miami, Mike has written for everything from TV to the news, talk shows, commercials, and major online publications. Mike has since relocated to Atlanta, GA near the SUPCASE headquarters where he resides with his wife, two daughters, and kitty cat.



  • anna

    thank you! bought a clear case a while ago along with one from another brand – this one hasn’t turned yellow while the other one has! 😯😯😯😯😯😯 suprised!

  • Gaston

    I have a Supcase beetle for my iphone 11 pro max. It turned yellow, and turning onto the orange side now.

  • Bridget

    I have my first case that after purchase, I read reviews of turning yellow. I’ve been in the habit of taking it off & washing with some soap & water nightly before bed. I hope this helps. If it does start to change color, I’ll definitely try these ideas. Thank you!

  • aNne

    I have gotten so many clear cases that have turned yellow and so this was good information!

  • Roger Murillo

    You have awesome stuff !!

  • Deidre Adams

    Yes, I prefer clear cases. My opinion.

  • Dave McCausland

    I have bought some low priced cases cheaply made online, I always thought they turned yellow because of the material they used!
    I am going to get some clear cases from Supcase, but in the meantime i think I will try that magic eraser trick!
    Thank you for sharing these tips to get the yellow out :)

  • Shaik Tahan

    Superb and amazing modern style cases

  • SUe E

    I’ve never had a clear phone case before. So I haven’t encountered the yellow case problem. Now I do know what attributes to that problem. I pinned this so I can remember how to clean a dirty phone case. Thank you for the useful tips!

  • Sue E

    I’ve never had a clear phone case before. So I haven’t encountered the yellow case problem. Now I do know what attributes to that problem. I pinned this so I can remember how to clean a dirty phone case. Thank you for the useful tips!

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