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% of acid in a formulation
When you have a 8% Glycolic Serum. Does that mean it’s 8% of the formulation? How do you determine percentage of acids?
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3 Replies
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That depends on the integrity of the manufacturer.
But assuming they are being honest, 8% Glycolic Serum means that 8% of the formula is made up of Glycolic acid.
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Thank you!
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You can have 20% of glycolic acid but at a wrong pH, it won’t have exfoliating properties.
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