Vitamin C Repair Serum Separation

Subject: Vitamin C Repair Serum Separation

Hello,

Thank you for sharing your observation about the Vitamin C Repair Serum separating.

Based on the formula you provided, the serum is an emulsion, which is a mixture of oil-based ingredients (like Silky Serum Base Plus and Perfect-C / Ascorbyl Tetraisopalmitate) and water-based ingredients (like water and Repair Activator).

Emulsions are inherently unstable systems. While they are designed to stay mixed, over time or under certain conditions, the oil and water phases can separate. This is a physical process called phase separation or creaming/sedimentation, depending on which phase is separating.

Factors that can contribute to this separation include:

• Formula Stability: The specific combination and concentration of ingredients, as well as the type and amount of emulsifier used (which is part of the Silky Serum Base), determine the long-term stability of the emulsion.
• Storage Conditions: Temperature fluctuations, such as moving the product in and out of the refrigerator, can sometimes stress the emulsion and accelerate separation.

As the staff mentioned, this separation does not necessarily mean the product has gone bad or is no longer effective. It is a physical instability. You can gently shake the bottle before each use to re-disperse the ingredients.

If the product smells unusual, changes color significantly beyond the separation, or shows other signs of spoilage, then it might be compromised. However, simple separation into layers is often just a physical issue with the emulsion stability.

We appreciate you reporting this observation.