What is methylisothiazolinone? And methylchloroisothiazolinone?
This potentially irritating preservative is included in many personal care products, even those marketed to babies and those with sensitive skin.
Preservatives are necessary ingredients in personal care products. Would you want to find mold thriving in your face cleanser (or in anything else you’re applying directly to your skin)? Even so, it’s probably still better to ensure that your skincare and beauty products don’t contain preservatives that are likely to irritate your skin. I didn’t even know that some ingredients were only permitted in “rinse-off” products (like shampoos), until I asked my dad…
