Usage Guidelines and Preservation for LipidSoft™ F (Ethyl Linoleate)

Regarding your questions about LipidSoft™ F (Ethyl Linoleate), here are the details:

1. Can it be used as a 100% face oil?

It is not recommended to use it at 100% concentration. The manufacturer's recommended usage rate is 1-20%.

• Reason: Ethyl Linoleate is a concentrated derivative of Vitamin F. Using it at full strength may be excessive for the skin and is best used as an active ingredient blended into a base oil (such as Jojoba Oil or Squalane) or a formula to achieve the best texture and efficacy.

2. Can it be mixed with existing creams?

Yes, you can.

• Since it is oil-soluble, you can mix it into your current cream.
• Tip: If you are mixing it into a finished cream, start with a small amount (about 1-3%) to ensure the cream's texture remains stable and doesn't become too greasy or separate.

3. Does it need a preservative?

If you are using it as a pure oil or in an oil-only blend (anhydrous):

• Microbial Preservative: You do not need a traditional preservative (like those used for water-based products) because bacteria and mold generally cannot grow in a water-free environment.
• Antioxidant (Essential): However, because Ethyl Linoleate is an unsaturated fatty acid derivative, it is prone to oxidation (becoming rancid). You should add an antioxidant such as Vitamin E (dl-alpha tocopherol) at 0.1-0.5% to protect the oil from spoiling and to extend its shelf life.

Recommended products for your formulation:

• LipidSoft™ F (Ethyl Linoleate): The main active for balancing sebum and restoring the skin barrier.
• Vitamin E (dl-alpha tocopherol): To prevent oxidation and maintain product stability.