Phenolphthalein 1% Solution

Phenolphthalein 1% Solution

Phenolphthalein is a clear liquid that is used to determine the pH of soap. It is very easy to use, just drip a drop of the solution onto the soap and if it turns a deep pink or fuchsia the soap is not safe to use on the skin. It can be used for bar soap, liquid soap, and cream soap.

Easy to use Ph strips for testing the Ph of your personal care products.

Drop a small amount of phenolphthalein onto the soap. The deeper pink it turns, the more alkaline the soap will be. If the liquid stays clear or a very light shade of pink, it should be fine to use on the skin.

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