功能?
化妆品防腐剂成分使用基准表
74年7月23日卫署药字第539747号公告
Dehydroacetic acid and its salts 0.5%
CIR安全审查:CIR专家小组发现,含有这些成分的化妆品在许多临床试验中实际上无刺激性,不致敏性,不光敏性和无光毒性。
CIR专家小组指出,脱氢乙酸钠和脱氢乙酸在低浓度(小于等于0.6%)对细菌和真菌均是有效的抗菌剂,并且脱氢乙酸的最适pH范围为2至4。通过阻止微生物的生长而不是杀死微生物来採取行动。
https://cosmeticsinfo.org/ingredient/dehydroacetic-acid
【Dehydroacetic Acid】
Rating: GOOD
Categories: Preservative
Dehydroacetic acid is a synthetic preservative used in amounts of 0.6% or less where it’s proven to be safe and effective. Dehydroacetic acid is characterized as a white to cream crystalline powder. Sometimes its salt form (known as sodium dehydroacetate) is used, as it is more soluble in certain types of cosmetic formulas. Dehydroacetic acid is most effective on fungi.
https://www.paulaschoice.com/ingredient-dictionary/ingredient-dehydroacetic-acid.html