Polyester-7 is a film-forming and emulsifying agent used in skincare, hair care, and body care products. It helps hydrophobic ingredients disperse in aqueous solutions and assists in controlling the viscosity of formulas. It is also used in sunscreens to optimize SPF value, solubilize organic UV filters, and provide water resistance. It is a microplastic ingredient that is persistent and toxic in the environment.
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Petrochemical
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LOW
Polyester-7 is a high molecular weight, water-resistant polymer that forms a film on skin that is difficult to re-emulsify and wash-off. It also acts as a reservoir for UV filters, creating an even film on skin for optimized sun protection. The ester component helps to fluidize the crystalline structure of the polyester for ease of formulation. It also provides organic UV filter solubilization to prevent recrystallization of the UV filters on skin. It is a microplastic ingredient that is persistent and toxic in the environment and can accumulate in organisms, causing harm to wildlife or human health. Endocrine disruptors are natural or human-made chemicals that may mimic, block, or interfere with the body’s hormones, which are part of the endocrine system. These chemicals are associated with a wide array of health issues. Polyester-7 is a microplastic ingredient that can act as an endocrine disruptor and may interfere with the body’s natural hormone balance.
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