If you’ve ever made cold process soap, you know that there are many different ingredients that go into the mix. One of those ingredients is EDTA, or ethylenediaminetetraacetic acid, which is a chelating agent used to help bind metals and other minerals.

When used in soap, EDTA helps to prevent discoloration and other problems caused by metal ions in the water used to make the soap. But how much EDTA do you need to add to your soap in order to achieve the desired effect?

The answer is, it depends. The amount of EDTA needed will vary depending on the recipe and the type of soap you’re making. Generally, the amount of EDTA used will range from 0.1% to 0.5% of the total weight of the soap.

For example, if you’re making a soap recipe that calls for 1,000 grams of oil, you would use 1-5 grams of EDTA. If you’re making a soap recipe that calls for 5,000 grams of oil, you would use 5-25 grams of EDTA.

It’s important to note that you should never add more than the recommended amount of EDTA to your soap. If you add too much EDTA, it can lead to a slippery or slimy feeling on the skin.

Additionally, EDTA is a powerful chelating agent and can bind with other beneficial ingredients in your soap. Too much EDTA can strip out important vitamins and minerals, leaving your soap lacking in nourishing benefits.

When it comes to finding the perfect amount of EDTA to use in your cold process soap, the best advice is to start with the lowest amount and increase gradually until you achieve the desired effect. Using too little or too much EDTA can lead to less than ideal results, so it’s important to find the right balance.

With a little trial and error, you’ll be able to determine the perfect amount of EDTA to use in your cold process soap.