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副作用：PEG 100 Stearate is a moderate to high hazard ingredient depending on usage.
The EWG issues warnings regarding: cancer, developmental and reproductive toxicity, contamination concerns, irritation, and organ system toxicity.
PEGs (including PEG 100 Stearate) can contain harmful impurities, including: Ethylene Oxide, known to increase the incidences of uterine and breast cancers and of leukemia and brain cancer, 1,4-dioxane, a known carcinogen; PAHs, known to increase the risk of breast cancer。
Products and formulas containing PEG 100 Stearate should not be used on broken or irritated skin. Although PEGs are considered safe for use topically on healthy skin, studies showed that patients suffering from severe burns were treated with PEG-based antimicrobial cream; this treatment resulted in kidney toxicity. "
cosmetic formulations containing these ingredients should not be used on damaged skin。
PEG聚二乙醇(Polyethylene glycol)：常見的標示是PEG，成分英文結尾有xynol、ceteareth、pleth等，通常都含有這種物質。主要用作保養品中的乳化劑、保濕劑，聚二乙醇(PEG)類的化學成分通常以數字作為不同類型區分，如：PEG-4、PEG-100等等，數字愈小，代表化學成分愈容易被皮膚吸收。這類成分很容易被皮膚吸收，已經被證實會降低血壓，成分不容易被分解、容易累積在肝臟中。根據國際毒物學期刊(International Journal of Toxicology)的化妝品成分審查報告，有許多污染物在含有聚二乙醇的化妝品中被發現，包括1,4-二氧陸環(1,4-dioxane)這種已知的致癌物質、多環芳香族化合物，重金屬鉛、鐵、鈷、鎳、鎘、砷等。所以看到PEG成分務必特別小心！