Antioxidants for the stabilization of UV filters
A friend of mine asked me about the action of these componentes in this context and now I’m thinking if there’s a difference between their use in organic filters and in inorganic filters. Does anyone have any experience to share? My questions are:
1 - Does this stabilization refer to the formulation or the skin? I mean, the objective here is to stabilize the filters (in the formulation) or increase the product’s duration/effectiveness (on the skin)?
2 - Do all antioxidants act in this way or just a fewer of them? Can someone give me examples?
3 - There’s a difference in the mechanism of action of antioxidants in organic and inorganic filters?
4 - Do they have a role as boosters in the preservation of the system? Maybe a synergic contribution to chelating agents and/or preservatives, idk?
Sorry for so many questions. I’m really trying to understand this topic better so I’m reading some articles about it (I accept recomendations as well).
Thank you in advance!