Herbarie Update

Thanksgiving Schedule! Our offices will be closed from Wednesday, November 26 – Sunday, November 30. Our online shopping cart will remain open during this time. Orders placed by November 25, 12:00noon EST will be shipped prior to closing. We will begin shipping all other orders when we reopen on Monday, December 1, 2014.

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Leucidal Liquid SF

Leucidal Liquid  SF
Leucidal® Liquid SFis the newest of the natural, plant-based preservatives from Active Micro Technologies. Active Micro Technologies combines the current trends for alternative preservative systems with peptide technology.

Leucidal® Liquid SF is a probiotic-based ingredient created by the fermentation of Lactobacillus in a defined growth medium. Lactobacillus is one of the species of microorganisms used to produce fermented products such as sau¬erkraut and kimchi, a Korean dietary staple, from cabbage. Like many members of the lactic acid bacteria family, Lactobacillus is capable of restricting the growth of other microorganisms by acidifying its environment. However, in addition to acidifying its environment, Lactobacillus also produces novel antimicrobial peptides, also known as bacteriocins, that are capable of providing broad spectrum antimicrobial protection.

Leucidal® Liquid SF is Salicylate Free.

Leucidal® Liquid SF is suitable as the primary preservative in a wide range of cosmetic formulations. Leucidal Liquid SF is excellent against bacteria, but may not provide as much protection against yeast and mold. For more difficult to preserve formulations we recommend combining 2-4% Leucidal Liquid SF with 0.2% Microguard. Or 2% Leucidal Liquid SF with 2% Leucidal Liquid PT.

Leucidal® Liquid SF is non-irritating, non-sticky and compatible with most ingredients.

Active Micro Technologies utilizes cutting edge biotechnology based on the natural defense mechanisms used by microorganisms to protect themselves. Techniques have been developed to combine the performance of botanical extracts and fermentation products to harness this natural defense mechanism. Natural Preservative - Leucidal® Liquid SF combines the current trends for alternative preservative systems and peptide technology.

Challenge testing has demonstrated that 2% Leucidal® Liquid SF in a cream base is able to successfully inhibit microbial growth. Samples were inoculated with S. aureus, E. coli, P. aeruginosa, C. albicans, A. niger, K. pneumoniae, B. cepacia. Following 28 days of incubation samples were then re-inoculated for an additional 28 days. Minimum Inhibitory Concentrations (MIC) were determined using a standard agar dilution method. A variety of bacteria and fungus were tested to evaluate the ability of Leucidal Liquid SF to protect against microbial contamination. The results indicate that Leucidal Liquid SF can provide effective protection for many cosmetic applications.

Please note that every personal care formulation requires a preservative system that meets its specific needs. Each formulation should be created with the preservative system as part of the formulation, rather than adding a preservative as an afterthought. Using natural antimicrobials for cosmetic preservation requires careful planning and much testing. Therefore, we recommend that every newly developed formulation should undergo microbial testing to ensure adequate preservation.

Recommended Usage: 2.0% - 4.0%

INCI Name: Lactobacillus Ferment

Solubility: Water soluble

Physical Form: Clear to slightly hazy

Product Overview:
-Water Soluble
-Salicylate Free
-Broad spectrum of antibacterial activity
-Low to no irritation potential; very mild
-Broad pH range (3-8) – most effective at a pH of 6.0 or less
-We recommend adding at cool temperatures (less than 70C).
-Add to emulsions during cool-down phase to avoid any destabilization issues. We recommend adding to cooling emulsion (100F/40C or less).
-Easy to use, almost odorless, clear and light colored
-May disrupt some emulsions
-Not compatible with anionics


Price: $5.50
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