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March 11, 2025 16 mins

Your "clean" foundation probably contains liquid plastic. And even the most popular clean beauty brands are defending its use.

I'm taking a diving deep into a controversial topic in clean beauty: the use of liquid plastics like polyethylene in makeup. While brands like Merit and Ilia market themselves as clean, they're using ingredients that contribute to our growing environmental plastic crisis.

The argument from these companies is that liquid plastic molecules are too large to be absorbed by your skin and therefore "safe." But when you wash these products down your drain, they join the microplastics in our water system, eventually making their way back into our food, water, and bodies. Even small amounts matter when we consider the cumulative environmental impact.

In this episode, I break down the science behind liquid plastics in cosmetics, share which brands are truly clean, and explain why I'm considering adding these ingredients to my official toxins to avoid list. Whether you're concerned about environmental impact or just want to make informed choices about your makeup, you'll learn how to identify and avoid liquid plastics in your beauty products.

In today's episode, we're chatting about:

• Why popular clean beauty brands are defending the use of liquid plastic

• How to identify plastic ingredients in your makeup

• The environmental impact of washing these products down the drain

• Which brands are truly plastic-free

• The difference between microplastics and liquid plastics in cosmetics

Episode Resources

Wendy’s Non-Toxic Makeup Picks

Download the Top 25 Toxins to Avoid and become a label reading pro! 

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