Can I preserve a herbal infusion?
I formulated a hair mask for my personal use to witch I add a Hibiscus flower water infusion. I typically make a 226g, 8oz of this infusion but I only add 113g, 4oz of it to my formula. I would hate to throw out the rest of the infusion so I started entertaining the idea of preserving the infusion with a board spectrum preservative ie like: Propylene Glycol (and) Diazolidinyl Urea (and) Iodopropynyl Butylcarbamate = Germall Plus. So the question is can I preserve a water infusion so it can last longer or is this just crazy talk lol?
Thank you in advance for the insight