The human skin contains over a trillion diverse bacteria. These skin flora helps maintaining the skin barrier function by adjusting the moisturising components, pH, and immunity of the skin surface.
The skin flora contains coagulase–negative staphylococci (CNS) along with Staphylococcus epidermidis which produce acidic substances and glycerin.
They are called "beneficial bacteria". However, the number of beneficial bacteria is decreased with age.
Fairy Flora K-1 is a product made from a special lactic acid bacterium Lactobacillus K-1 found in Japanese rice.
Fairy Flora K-1 uses a heat-treated lactobacillus material, so it can be stored at room temperature. This product is more stable in quality and heat resistant than raw bacteria, and there is no concern about contamination of the production line by bacteria.
Our clinical studies have shown that Fairy Flora K-1 has nurtured skin beneficial bacteria.
Japanese subjects in their 20's to 60's were divided into 2 groups, with one group using a gel containing 0.1% Fairy Flora K-1 and another group using the control gel. The CNS, which are beneficial skin bacteria, were increased in most subjects in the Fairy Flora K-1 group after 4 weeks.
The water content in stratum corneums (conductance) was measured. The conductance value was significantly increased in the Fairy Flora K-1 group as compared to the control.
Fairy Flora K-1 improves sensitive and troublesome skin.
This product can be recommended as a cosmetic ingredient with the benefits of probiotics in mind.
Efficacy of Fairy Flora K-1
The following test results demonstrate the usefulness of the product.
- Improving growth-promoting activity of Staphylococcus epidermidis
- Promoting antimicrobial peptides production
- Promoting keratinisation-related proteins (involucrin, filaggrin) production.
- Improving growth-promoting activity of CNS
- Moisturising effect.