Why Does Your Foundation Oxidise? Here’s How to Fix It

Why Does Your Foundation Oxidise? Here’s How to Fix It


You’ve matched your foundation perfectly to your skin, blended it seamlessly, and then - an hour later - it looks noticeably darker or more orange. Sound familiar? This is foundation oxidation, and it can completely change the way your base looks throughout the day.

Why Does Foundation Oxidise?

So, why does foundation oxidise? Oxidation happens when the pigments and ingredients in a foundation react with oxygen, natural oils, sweat, or skincare sitting on your skin. Your skin’s pH, excess sebum, humidity, and even the products layered underneath can influence how your foundation settles.

Some formulas may appear slightly darker once they dry down, which is why a shade that looks perfect immediately after application may look different after a few hours. This is particularly noticeable with fuller-coverage formulas containing higher levels of pigments.

How to Stop Your Foundation From Changing Color

Wondering how to stop foundation from oxidising? Start with proper skin prep. Cleanse your skin, moisturize according to your skin type, and allow skincare to settle before applying makeup. If you have oily skin, a suitable primer can help manage excess oil and create a smoother base.

Choosing the right formula also makes a difference. Explore PAC foundations to find formulas and shades suited to different makeup needs. The PAC Spotlight Cushion Foundation, for instance, offers a lightweight, velvety matte finish with nine shades and is designed to deliver an airy texture while keeping the base comfortable.

How to Fix Oxidised Foundation

If your foundation has already changed colour, don’t panic. Blend it thoroughly and balance the tone with a concealer or corrector where needed. You can also lightly set your base with translucent powder to minimise excess shine.

Most importantly, always test your foundation on your jawline and give it a few minutes to settle before choosing your shade. Understanding foundation oxidation can save you from choosing a shade that looks perfect in the bottle but completely different on your skin.

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