Do Topical PUFA's Oxidize?
ImmortalSpace
27 Jul 2015
A sunscreen i'm using contains a lot of PolyUnsaturated Fats (PUFAs) in it from sunflower oill. I know PUFA's can rapidly oxidize, but does it still oxidize topically? I don't know if anyone else has brought this up but this is obviously a huge deal and I am trying to figure this out.
Heyman
27 Jul 2015
Would be great for someone else to comfirm, but as I see it the oil won't penetrate your skin so don't worry.
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ImmortalSpace
27 Jul 2015
Would be great for someone else to comfirm, but as I see it the oil won't penetrate your skin so don't worry.
Yes, but theres still a chance it can oxidize on the surface epidermis layer. Still bad, anyone know anything about this?
happy lemon
27 Jul 2015
This site lists the sun stability of some oils found in the market.
Heyman
29 Jul 2015
Yes, but theres still a chance it can oxidize on the surface epidermis layer. Still bad, anyone know anything about this?
You mean it could oxidize on the stratum corneum upper layer of dead skin cells? Again I don't think this is anything to worry about, the same discussion was there regarding zinc oxide creating free radicals. But take with a grain of salt.
