Formulation Advice for Your Ingredients

Based on your questions and the properties of the ingredients you plan to use:

1. Using Satin Cream Maker™ with Your Ingredients

Yes, you can use Satin Cream Maker™ as the cream base for your list of ingredients.

• Compatibility: Satin Cream Maker™ is a versatile, heat-free emulsifier that works well in water-based formulations and can incorporate an oil phase (up to 25%). Most of your active ingredients (GlucoBright™, Vitamin B3 (Niacinamide), Sea Kelp Extract, Yeast Radiance™, Zinc PCA) are water-soluble or dispersible and are typically added to the water phase. Natural Bisabolol is oil-soluble and can be incorporated into the oil phase before combining with the water phase containing the cream maker. The broad pH compatibility range of Satin Cream Maker™ (pH 3-12) is suitable for the recommended pH ranges of your active ingredients. Since Satin Cream Maker™ is used in a cold or low-heat process, this also suits ingredients like Sea Kelp Extract and Yeast Radiance™ that are sensitive to high temperatures.
• Ingredient Interactions: As noted in the replies, while the ingredients are chemically compatible in a formulation base like Satin Cream Maker™, some have different primary functions (e.g., Zinc PCA for oil control vs. Sea Kelp Extract and Homeostatine™ for moisturizing). This is not a chemical incompatibility that would make the formula unstable, but rather a consideration for the overall purpose and target skin type of your final product.

2. Using Bio-Yeast Essence (Yeast Radiance™) as a Watery Essence

Yes, you can mix Yeast Radiance™ with distilled water to create a watery essence similar in concept to SK-II.

• Yeast Radiance™ is a water-soluble, yeast-derived ingredient designed for skin brightening. While it is not the same ingredient as SK-II's Pitera (which is Galactomyces Ferment Filtrate), it serves a similar function as a yeast essence for improving skin radiance.
• Additions: It is crucial to add a preservative to any water-based formulation to prevent microbial growth and ensure product safety and shelf life. A typical usage rate for a broad-spectrum preservative like Phenoxyethanol is around 1%. You can also add other water-soluble beneficial ingredients such as humectants (e.g., Glycerin, Hyaluronic Acid) for added hydration, or other extracts depending on your desired skin benefits.
• Storage: Storing the finished watery essence in the refrigerator is recommended, as suggested in the replies and supported by the storage recommendations for Yeast Radiance™ raw material to maintain its quality and stability over time.

In summary, Satin Cream Maker™ is a suitable base for your cream formulation, and Yeast Radiance™ can be effectively used to create a watery essence, provided you include a preservative.