In this post, A bunch of comments I missed in March, Kathrine asks: I was curious if you had any insight on the efficacy of using Caprylhydroxamic Acid (and) Glyceryl Caprylate (and) Glycerin as a preservative. I haven't been able to find a lot of information on it, other than the suppliers who swear by it of course. They claim that it is "a complete broad-spectrum preservative-free preservation system in a wide variety of bath, body and skin care products, such as creams, lotions, shower gels and color cosmetics, especially those products desiring a ?paraben free? or ?preservative free? claim. It may be used in emulsion, anhydrous and surfactant systems, even with a neutral pH." 

Caprylhydroxamic acid (and) Glyceryl Caprylate (and) Glycerin is a complete broad-spectrum preservative-free preservation system that answers the call for paraben free formulating needs. Featuring Caprylhydroxamic acid (CHA), an amino acid derived from coconut oil, which some consider to be an ideal organic acid because it proves effective even at a neutral pH. This preservation system contains no biocides or traditional preservatives, such as parabens.
It uses instead ingredients that are multi-functional, possessing excellent efficacy as fungistatic and biostatic agents, making it appealing to formulators who desire to create personal care products that can carry a paraben-free or preservative-free claim. The combination of the effective preservation ability of glyceryl caprylat...