What is Isothiazolinone June 05 2015


Bacterial infections are a deal killer. That's why manufacturers rely on preservatives to ward off microbes and keep products safe for use without the risk of catching a nasty infection. At this time there are no known natural preservatives that are strong enough to do a reliable job. But thanks to people called Organic Chemists there are solutions available that give us products that are both sterile and made from safe ingredients.

We use Isothiazolinone in some of our products because we believe it is the safest option available at this time.

Since we recently began using Isothiazolinone, we have started updating all packaging and claims to reflect the use of this synthetic ingredient.


What is Isothiazolinone?

Isothiazolinone is an antimicrobial preservative that is commonly used to control bacteria, fungi, and algae. It is most commonly applied in water containing solutions, as these solutions are a breeding ground for bacteria.
There are a number of different products on the market today that use Isothiazolinone like sunscreen, hand sanitizer, shampoo, cosmetics, lotions, and many more. The purpose of including Isothiazolinone in these products is to inhibit microbial activity that could potentially spoil the product before its expected expiration date.

There is also safety to think of. Certain microbial infestations can cause severe health issues. Designing products that inhibit microbial activity is a best practice that keeps consumers safe.

Is Isothiazoline Safe?

According to the manufacturer:

The maximum recommended use level for KATHON™ CG [Isothiazolinone] preservative is 0.1% by weight of product as supplied (15 parts per million active ingredient) in rinse-off products and 0.05% (7.5 parts per million active ingredient) in leave-on products.”

As recommended by the manufacturer, the small amounts used in our wrinkle releaser are not harmful if used as intended as a wrinkle releaser. This is why you DO NOT drink our wrinkle releasers, and if you do ingest our wrinkle releasers, we recommend contacting Poison Control or a physician.

One commonly reported issue with Isothiazolinone is an allergic skin reaction. There is even a Facebook page published where people post pictures of their reactions to Isothiazolinone. Once again, we use Isothiazolinone in our wrinkle releaser, and if used as intended, this product should not cause a reaction for most people. However, if you are allergic to Isothiazolinone, consult your doctor before using Cold Iron Wrinkle Releaser.

Stop using Cold Iron Wrinkle Releasers immediately if you experience any adverse reaction, and consult a physician. This could be a result of an allergic skin reaction.