Solubility and Stability of Ingredients in Oil Formulations

Question

If Resveratrol LongMax™ is mixed into a pure oil product, what percentage is needed for it to be fully dispersed without any sediment? In an oil-based formula containing 78% Squalane (Olive) and the remaining 22% consisting of the following ingredients: Coenzyme Q10 Extra Perfect-C™ (Ascorbyl Tetraisopalmitate) Apple Phloretin™ German Chamomile Extract MSH White Absorb™ Myristyl Nicotinate Resveratrol LongMax™ Are there any oils or ingredients among these that will separate from the others?

MySkinRecipes Expert · Accepted Answer

Subject: Regarding your inquiry

Hello,

Thank you for your questions.

Regarding the percentage of Resveratrol LongMax™ in pure oil:
Resveratrol LongMax™ does not fully dissolve in pure oil; it disperses or suspends. To ensure dispersion without immediate sedimentation, it is recommended to use oil at a ratio of at least 10 times the amount of Resveratrol LongMax™. For example, if you use 1% Resveratrol LongMax™, use at least 10% oil. However, for long-term stability and to prevent sedimentation over time, the formula needs to have some viscosity to keep the Resveratrol LongMax™ particles suspended.
Regarding potential separation of ingredients in your oil-based formula (78% Squalane, 22% other ingredients):
Based on the information available, the primary ingredient among those listed that is likely to cause issues like precipitation or sedimentation in a low-viscosity oil formula is Resveratrol LongMax™. This is because it is a suspension and requires sufficient viscosity in the formula to remain dispersed and prevent settling over time.
The other ingredients listed are generally oil-soluble or designed to be compatible with oil bases. Separation into distinct layers (like oil and water separating) is less likely with these ingredients compared to the potential precipitation issue specifically with Resveratrol LongMax™ if the formula lacks viscosity.