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In drug formulations, polysorbate 80 has been implicated in a number of systemic reactions (e.g., hypersensitivity, nonallergic anaphylaxis, rash) and injection- and infusion-site adverse events (ISAEs; e.g., pain, erythema, thrombophlebitis) . Is polysorbate 80 carcinogenic? Study results of the polysorbates, showed no carcinogenicity and genotoxicity. In repeated-dose toxicity studies, diarrheaRead More →

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Polysorbate 20: Polysorbate it typically mixed at a 1:1 ratio of oil and emulsifier. However, some oils will require more. I find the best results when mixing 2 parts Polysorbate 20* with 1 part essential oil. If you choose to leave this ingredient out, you will need to thoroughly shakeRead More →