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What are some examples of “antioxidant stabilizing agents” . . . ?
From a certain journal article.
“Conclusion:<strong style=”font-family: inherit; font-size: inherit;”> Formulations containing (AA) and or (SAP) both improved elasticity and wrinkles of the skin almost by the same extent, and it is necessary to add antioxidant stabilizing agents to both preparations to reach a desired stability.”
I assume mixed tocopherols would be a good example of an oil-soluble one (?), but does anyone have suggestions for water-soluble ones?
Thank you.
pubmed.ncbi.nlm.nih.gov
Formulations containing (AA) and or (SAP) both improved elasticity and wrinkles of the skin almost by the same extent, and it is necessary to add antioxidant stabilizing agents to both preparations to reach a desired stability.
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2 Replies
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Ferulic acid. Combination of AA + mixed tocopherols + Ferulic acid is very famous due to L’oreal Skinceuticals patent Note that they replace a lot of water with Ethoxydiglycol. The actual problem of AA oxidation is water, so if you make a waterless solution (e.g. Propanediol 90% + 10% AA) you won’t have as much oxidation as in water.
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BUT! I should mention that the study you provided is poorly designed. Only 12 females (almost like Garnier’s 9 out of 10 women on the jar), not statistically significant. Also, the study is blinded for the participants, but not double-blinded, the conductors know which area is treated with which product (or placebo). So I would not trust it.
Unfortunately, there are not reliable (with proper design: double- or triple-blinded, correct placebo, done on statistically relevant set of humans - different ages, genders, races, correct number of participants) studies of AA out there.
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