Formulating a Serum: Ingredient Compatibility, Texture, and Shelf Life

Hello,

Thank you for your questions regarding cosmetic formulation and testing services.

Regarding your first question about mixing Aloe Vera Gel Base and Perfect C:
Perfect C (Ascorbyl Tetraisopalmitate) is an oil-soluble ingredient. Aloe Vera Gel Base is a water-based gel. Directly mixing an oil into a water-based product like a gel base can be challenging and may not result in a stable, uniform serum. To properly incorporate Perfect C into a gel base and create a stable serum, you would typically need to use a solubilizer or emulsifier to help the oil phase (Perfect C) disperse evenly within the water phase (gel base). Simply combining them might lead to separation or poor texture.

Regarding your second question about the list of ingredients (Perfect-C, Pro Polymer, Galactomyces Ferment Filtrate, Water, EDTA, Preservative):
These ingredients are compatible and can be mixed together to create a formulation.

To achieve a light, fast-absorbing, non-sticky serum texture with this formula, the key is to adjust the concentration of Pro Polymer™ (Gel Maker). Using a lower concentration will result in a thinner, less viscous gel that feels lighter and absorbs faster. You might also consider ingredients that improve skin feel, but adjusting the gel maker concentration is the primary way to control the texture's lightness and stickiness.

Regarding the shelf life and long-term efficacy of the finished product:
As mentioned by the staff, the exact shelf life and how long the active ingredients remain highly effective cannot be precisely calculated without conducting stability and efficacy testing under various environmental conditions (temperature, light, etc.). You can find more general information about product stability in the forum link provided by the staff (topic171.html).

Regarding testing services:
Myskin does not offer testing services for finished cosmetic products, such as testing active ingredient efficacy or determining exact shelf life. However, they can recommend external laboratories that provide these services. Please contact customer support at care@myskinrecipes.com for recommendations.

We hope this information is helpful!