Leucidal® Liquid SF

ECOCERT/COSMOS Approved
Leucidal Liquid SF is Salicylate Free
Always in Stock!
Click Here to View Antimicrobial Formulating Guidelines Leucidal® Liquid SF is on the Whole Foods Acceptable Premium Preservative List
Use with AMTicide Coconut – to protect against yeast and mold - Click here to View AMTiCide Coconut
Now Available - Leucidal SF Complete (Leucidal Liquid SF + AmtiCide Coconut)
For Further Information or Studies, Please request from us by e-mail
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 kimchi and
sauerkraut, 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, Lactobacillus also produces
novel antimicrobial peptides,
known as
bacteriocins, that are capable of providing broad spectrum antimicrobial
protection. During the manufacturing process, lysozyme is added to the
ferment filtrate to facilitate a controlled cell lysis to ensure the release of
the antimicrobial peptides for maximized activity.
The ability of Leucidal® Liquid
SF to
inhibit the growth of a variety of bacteria and fungi was determined using the Minimum
Inhibitory Concentration (MIC) test. The results are illustrated in Table 1,
showing that this material provides
broad spectrum
antimicrobial protection. A double challenge test using 2% Leucidal® Liquid
SF was
also conducted to evaluate the ability of the product to provide
antimicrobial protection in finished formulas. A basic O/W emulsion was used as
the base. The samples were
inoculated with E. coli, P. aeruginosa, S. aureus, C. albicans and A. brasiliensis and incubated for 28 days. During this
period, samples were periodically collected and tested for the presence of
viable microorganisms. Following the
initial 28 days of incubation, the samples were re-inoculated with the
microbial cultures for another period of 28 days. The results are
illustrated in Table 2.

Leucidal® Liquid SF can be used in a wide range of cosmetic products, however to ensure optimum results we recommend using the following guidelines. Incorporate the product into formulations at a pH between 3 and 7, during the cooling phase of the process at temperatures lower than 70°C. Furthermore, when working with xanthan gum or Carbopol Ultrez 10, it is best to add this product prior to the thickener.
We always recommend that every formula undergo stability and microbial testing to ensure adequate preservation
INCI Nomenclature:
Lactobacillus Ferment
INCI Status: Approved
REACH Status: Fully Compliant
CAS Number: 68333-16-4
EINECS Number: N/A
Origin: Biotechnology
Lactobacillus
Processing:
GMO Free
No Ethoxylation
No Irradiation
No Sulphonation
No Ethylene
Oxide treatment
No
Hydrogenation
Additives: None
-Preservatives:
None
-Antioxidants:
None
Other additives: None
Solvents used: Water
Appearance: Clear to Hazy
Liquid
Soluble/Miscible:
Aqueous Ferment
Filtrate
Suggested Use
Levels: 2.0
- 4.0%
Suggested
Applications:
Skin
Conditioning, Antimicrobial