4 ms·
And some brands/products even have a 70% Std.Dev... seems to be more manufacturing inconsistency and bad quality control.
by woliveirajr 5y ago
And some brands/products even have a 70% Std.Dev... seems to be more manufacturing inconsistency and bad quality control.
- giantg2 5y agoPretty sure age is a big factor. The components of many sunscreens (non mineral) break down into benzene. They recommend throwing out your unused sunscreen after every year.
- RALaBarge 5y agoSorry to ask, but did you have a source for this?
- giantg2 5y agohttps://phys.org/news/2017-06-sunscreen-creams-dangerous-chemical-compounds.html https://phys.org/news/2017-06-sunscreen-creams-dangerous-che...
- RALaBarge 5y agoThank you for this. This guide mentions that it breaks down when exposed to chlorinated water and UV light -- NOT that sunscreen breaks down in storage over time, which is what I was personally concerned about.
- giantg2 5y agoI can't seem to find the article I saw a couple months ago. Here's one on room temperature storage for 1 year. This accelerates if left in a hot car or similar environment. https://thecanadian.news/2021/03/08/a-suspected-carcinogenic-product-discovered-in-sunscreen-and-anti-aging-creams/ https://thecanadian.news/2021/03/08/a-suspected-carcinogenic...