Another point (the most important point) is cyclic polysiloxane, especially cyclopentasiloxane (D5) and cyclotetramethicone (D4), which are more commonly used in the cosmetics industry. Less, mainly introduced as impurities), it may affect the production of breast milk, thereby affecting some health problems of babies. As for its harmfulness, there is currently no specific evidence. Currently, the Canadian government has listed cyclopentasiloxane as one of the toxic chemical ingredients, requiring cosmetic companies that use this ingredient to declare safety and dosage for better supervision.
Click for details: Octamethylcyclotetrasiloxane IOTA D4 – (iotachem.com)