Is kind of annoying and vague. I was on one website and bought ultrafine l ascorbic acid, ferulic acid, and 95 percent tocopherols vitamin e vecause that is what i have been reading as all i need. Now others are telling me I need distilled water and all. There is no definitive answer I can find and I am just trying to contend with or momic my skinceuiticals ce ferulic. The internet is frustrating.
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Advocacy & Research for Unlimited Lifespans