Chemistry: Formulating with pyrrolidine carboxylic acid (PCA) – zinc PCA

We find this compound, pyrrolidine carboxylic acid (PCA), with sodium or zinc as a salt we can use in our products, and as a component in the natural moisturizing factor of our skin. It’s a type of salt, which means it’s an electrolyte, so it can mess with the viscosity of our gels, emulsions, and…