Preservation and Storage Requirements for Galactomyces Ferment Filtrate
Question
I plan to use Galactomyces Ferment Filtrate 100% purely as a final product. I have two main questions regarding its stability and use:
- If I use the raw material purely (100%), is it necessary to add an additional broad-spectrum preservative, or is the preservative already contained within the raw material sufficient?
- What are the correct storage conditions? Can this ingredient be stored at normal room temperature, or must it be kept refrigerated (4°C to 8°C) to maintain its stability and shelf life?
Answer
Based on the product information for Galactomyces Ferment Filtrate, here is the guidance regarding preservation and storage:
1. Does it need a preservative if used purely?
The need for an additional preservative depends on which type of Galactomyces Ferment Filtrate you purchased:
- Standard Type (Product ID 357): This type already contains Butylene Glycol, which acts as a preservative and stabilizer for the raw material.
- Preservative-Free Type (Product ID 35561): Although named "Preservative Free," this version contains Hydroxyacetophenone and 1,2-Hexanediol which are used as mild preservatives and stabilizers.
General Recommendation:
Since Galactomyces Ferment Filtrate is a water-based ingredient (Ferment Filtrate), it is susceptible to microbial growth.
- For the raw material itself: The preservation system already included in the product (Butylene Glycol or Hydroxyacetophenone/1,2-Hexanediol) is sufficient to maintain the stability of the raw material in the sealed container.
- For a final product (even if used 100% pure): If you are transferring the product to a new container, using it repeatedly, or exposing it to air/skin contact, it is highly recommended to add a broad-spectrum preservative to ensure the safety and longevity of your final cosmetic product.
2. Can it be stored at normal temperature, or must it be refrigerated?
It must be refrigerated.
The storage instructions for both types of Galactomyces Ferment Filtrate clearly state:
- Storage: Keep in the refrigerator at a temperature of 4°C to 8°C.
- Shelf Life: Valid for 24 months when stored correctly in the refrigerator.
Storing this ingredient at normal room temperature is not recommended and will significantly reduce its shelf life and stability.
