Weekend Wonderings post, Elise asks: Would a combination of Phenoxyethanol, Methylparaben, Ethylparaben & Propylparaben be a 'broad spectrum preservative'?
If you look at the preservative quick reference chart, you'll see this is likely Phenonip or Liquipar Optima, which are both broad spectrum preservatives!
What is a broad spectrum preservative? It means it it kills off bacteria, mould, yeast, and other fungi or a broad spectrum of beasties that might contaminate our productsThe preservatives we buy are called synergistic preservatives, which are combinations of preservatives intended to eliminate all the various contaminants we could see in our products. If you see a product that is just one preservative - for instance, sodium benzoate or phenoxyethanol - then it's not a broad spectrum preservative, and you'll have to combine it with something else to get all the beastie killing power you need!
Preservative section of the blog
Preservatives: How the heck do they work?
What can get into our products?