Clear phone cases are popular choices for many smartphone users because they allow users to show off the device's design while providing protection. However, over time, clear phone cases are renowned for becoming discoloured often increasing the amount of wasted plastic we use trying to protect our devices.

What Causes Discoloured Phone Cases?

There are a few factors that can cause your clear phone case to discolour or turn yellow. They can include:

Exposure to Sunlight

Exposure to sunlight can cause clear phone cases to discolour over time. Ultraviolet (UV) rays from the sun can break down the materials used in the case, leading to yellowing or a change in transparency. This is particularly common with cheaper clear cases that may not have UV-resistant coatings.

Contact with Oils and Dirt

All phone cases are prone to collecting oils, dirt, and other debris from everyday use, and this has an impact on clear cases. Over time, these substances can build up on the surface of the case, leading to discolouration and a dull appearance. 

Chemical Reactions

Certain chemicals found in cosmetics, skincare products, and household cleaners can react with the materials used in clear phone cases, leading to discolouration.

Exposure to Heat

High temperatures can accelerate the breakdown of materials in clear phone cases, leading to discolouration and warping. Leaving your phone in hot environments, such as a car on a sunny day or near heat sources, can contribute to this issue.

Age and Quality of Materials

The quality of the materials used in clear phone cases can vary significantly between manufacturers. Cheaper cases may use lower-quality plastics or coatings that are more prone to discolouration over time. Additionally, as the case ages, natural wear and tear can contribute to changes in appearance.

Can You Reverse The Discolouration Of A Phone Case?

Unfortunately, once a clear phone case has become discoloured, it can be challenging to fully reverse the process, especially if it’s caused by factors like UV exposure, chemical reactions, or ageing of materials. However, there are some steps you can take to improve the appearance of a discoloured clear phone case to make them last longer:


Start by cleaning the case thoroughly using mild soap and water. Gently scrub the surface with a soft brush or cloth to remove any dirt, oils, or other debris that may be contributing to the discolouration. Be sure to rinse the case thoroughly and allow it to dry completely before reattaching it to your phone.

Using Baking Soda Paste

Create a paste using baking soda and water, then apply it to the discolored areas of the case. Gently scrub the paste into the surface using a soft brush or cloth, then rinse the case thoroughly with water. Baking soda can help lift stains and brighten the appearance of the case, although results may vary depending on the severity of the discolouration.

Consider Replacement

In some cases, especially if the discolouration is severe or the methods above do not yield satisfactory results, it may be best to consider replacing the clear phone case altogether. Investing in a high-quality replacement case made from UV-resistant materials can help prevent future discolouration and maintain clarity over time.

How To Prevent a Clear Phone Case From Discolouring

Preventing a clear phone case from turning yellow requires proactive measures to minimise exposure to factors that contribute to discolouration. Here are some tips to help keep your clear phone case looking fresh and transparent:

Choose High-Quality Materials

Opt for a phone case made from high-quality materials that are less prone to yellowing over time. 

Avoid Sunlight Exposure 

Limit the amount of time your phone and clear case spend in direct sunlight. Try to keep your phone in a shaded area when outdoors, and avoid leaving it in your car on sunny days.

Handle with Clean Hands

Make a habit of washing your hands regularly, especially before handling your phone, to minimise the transfer of oils and dirt to the case.

Clean Regularly

Clean your clear phone case regularly to remove dirt, oils, and other debris that can cause discolouration. 

Store Properly

When not in use, store your phone and clear case in a cool, dry place away from direct sunlight and heat sources. Avoid storing your phone in areas where it may be exposed to excessive humidity or temperature fluctuations, as these can also contribute to yellowing.

By taking these preventive measures, you can help prolong the life of your clear phone case and keep it looking transparent and new for longer.

If you’re looking for high-quality phone cases, look no further. Our Wave Case phone cases are designed for longevity with everyday use so you don’t have to worry about replacing them too regularly.
March 13, 2024 — Wave Case