Jojoba Oil and Perfect-C (Ascorbyl Tetraisopalmitate) Anhydrous Serum Formulation and Stability

Based on your proposed formula, here are the answers to your questions:

1. Is it possible to mix Jojoba Oil 95% with Perfect-C™ 5%?

Yes, it is possible.

• Perfect-C™ (Ascorbyl Tetraisopalmitate) is an oil-soluble Vitamin C derivative.
• It is fully miscible with Jojoba Oil, which is an excellent, stable carrier oil for anhydrous serums.
• The resulting product will be a clear, stable oil serum. The 5% concentration of Perfect-C™ is effective and easily dissolved in the oil base.

2. Is it necessary to add any other ingredients for stability or to prevent oxidation in this specific anhydrous formulation?

It is not strictly necessary but highly recommended to add an antioxidant for maximum shelf-life.

• Perfect-C™ Stability: Perfect-C™ is known for its exceptional stability, especially in anhydrous (oil-only) formulations, meaning the active ingredient itself is very resistant to degradation.
• Jojoba Oil Stability: Jojoba Oil is a liquid wax that is naturally very resistant to oxidation (rancidity) compared to many other vegetable oils.

To ensure the longest possible shelf life and protect the Jojoba Oil from eventually going rancid, you should add a small amount of an oil-soluble antioxidant:

• Recommended Antioxidants:
  • Vitamin E (Tocopherol): Add at a concentration of 0.1% to 0.5%. This is a natural antioxidant that also offers skin benefits.
  • BHT (Butylated Hydroxytoluene): Add at a concentration of 0.05% to 0.1%. This is a highly effective synthetic antioxidant.

By adding an antioxidant, your final formula will be even more robust and maintain its quality for a longer period.