Leucidal® Liquid


Multifunctional formulation protection, non-listed preservative


Natural antimicrobial and moisturiser

INCI name: 

Leuconostoc/Radish Root Ferment Filtrate


  • Active Concepts

Leucidal® Liquid is based on an antimicrobial peptide originally derived from the lactic acid bacteria, Leuconostoc kimchii. L. kimchi is one of 15 species of microorganisms that make up the mixed culture used for producing the Korean dietary staple known as kimchi, a type of fermented cabbage. Like many lactic acid bacteria, L. kimchii is capable of restricting the growth of other microorganisms by acidifying its environment, but as is common in nature, it is not content to limit itself to a single mechanism of defence. In addition to acidifying its environment, it also produces a novel antimicrobial peptide. Using modern fermentation and bioprocessing technology, AMT has commercialized this antimicrobial peptide to produce Leucidal® Liquid.

This innovative product provides the formulator the opportunity to capitalize on both the natural antimicrobial properties of Leucidal® Liquid, as well as its ability to provide potent moisturising benefits to the cosmetic formulation. These properties make it ideal for applications addressing numerous skin and scalp conditions.

Best Combined with AMTicide® Coconut.

Looking for formulations featuring Leuicidal® Liquid? Visit our Formulation Library.

Suggested Applications:

  • Moisturization
  • Skin/Scalp Conditioning
  • Antimicrobial
  • ‘Non-preservative’ preservative

Suggested Use Levels: 2.0 - 4.0%

pH range: 3-8 (tested at 5)

Biocidal Activity: Strong against bacteria, partial against yeasts and moulds