Vitamin E Acetate Usage for Antioxidant and Preservative Needs

Regarding the use of Vitamin E Acetate (Alpha Tocopheryl Acetate) to prevent rancidity in natural oils and whether a preservative like Mild Preservative Eco is also needed:

• Vitamin E Acetate as an Antioxidant: Vitamin E Acetate functions as an antioxidant, helping to protect oils from oxidation and thus preventing rancidity. For this purpose, the recommended usage rate is typically low. Based on product information, if used specifically as an antioxidant for other oils, a concentration of 0.01% is recommended.

• Need for a Preservative (Mild Preservative Eco): Vitamin E Acetate prevents oxidation (rancidity), which is different from preventing microbial growth (bacteria, mold, yeast). Natural oils themselves are generally not prone to microbial growth unless they become contaminated with water. However, if your formulation contains any water phase, or if the product is likely to come into contact with water during use or storage, microbial contamination is a risk. In such cases, a preservative is necessary to prevent spoilage and ensure product safety.

  Mild Preserved Eco is a product that helps control microbial growth and can be used in cosmetic formulas, including oil-based ones (by dispersing it). It is used to prevent damage caused by microorganisms. The recommended usage rate for general cosmetic formulas is 1.0-1.5%.

Conclusion:

Using Vitamin E Acetate at a low percentage (around 0.01%) will help prevent your natural oil from going rancid due to oxidation. However, it will not protect the product from microbial contamination. If your product contains water or is susceptible to water contamination, you should also include a suitable preservative like Mild Preserved Eco at its recommended usage rate (1.0-1.5%) to prevent bacterial and fungal growth.