Preserving Clay Masks
Hi all, had a clay mask fail and go moldy, even after using Optiphen Plus. PH was 6, and it was added after cool down at room temperature, so it should have held up. I know clay is notoriously hard to preserve, so I want to get this right. Any thoughts on why this would go bad and what I can do to ensure it doesn't happen again? Full ingredient list: distilled water, unrefined shea butter, bentonite clay, kaolin clay, cetyl alcohol, castor oil, glycerin, citric acid, dead sea salt, charcoal, peppermint oil, tea tree oil, fragrance, and grapeseed oil. Thank you in advance!