Squalene is a naturally occurring compound found in many plants and animals, including human skin. It is used in a variety of cosmetic and skincare products as a moisturizer and emollient. While squalene is generally safe and well-tolerated in cosmetic and skincare products, it can cause skin irritation or allergic reactions in some people. It is important to choose high-quality skincare products that are free of additives and fragrances that can irritate the skin.
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