Anti-microbial composition for preservation of personal care and home care products is described. Solid preservative composition of this patent application is completely free from toxic antimicrobials and has a broad spectrum of antimicrobial activity. It works as a stand-alone preservative without any additional booster molecule/s. The preservative composition of this patent application is based on N-capryloyl glycine, N-undecylenoyl glycine, benzoic acid and sodium dehydroacetate. The preservative composition of the present invention is cold processable. The preservative composition of this invention is in solid flake form to avoid dust explosion hazard that is generally associated with fine particulate matter. The personal and home care products that can be preserved by this composition of antimicrobials are, gels, serums, solutions, powders, lotions, creams, emulsions, wet wipes, hand-dish wash and the like, containing water in varying amount.
