@serummakerdiy: High concentrations of Vitamin C matter.
pH decides if it works at all.
Vitamin E and Ferulic Acid are what stabilize it. That combination is powerful. I teach it step by step in the Serum Maker Essentials course.
This isn’t a recipe. It’s knowledge you use for life. #serummaker #diyskincare #antiagingskin #vitaminc #serumcourse

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Saturday 22 August 2026 15:00:41 GMT