Formulation Analysis and Recommendations

Based on the ingredients you've listed (Vitamin B3, N-Acetyl Glucosamine, Tranexamic acid, Snail secretion, Copper peptide, Satin mousse, Phenoxyethanol, Water), these active components are generally compatible and well-suited for addressing your skin concerns: whitening, smoothing, and reducing acne scars.

The combination of Vitamin B3 (Niacinamide), N-Acetyl Glucosamine, and Tranexamic acid is excellent for targeting hyperpigmentation, improving skin tone, and enhancing skin texture. Snail secretion and Copper peptide contribute to skin regeneration, hydration, and can help improve the appearance of scars and fine lines.

You correctly observed that this list primarily contains water-soluble ingredients and lacks oils, making it unsuitable for a traditional cream. It is better suited for a water-based serum or gel formulation. The suggestions you received in the forum replies for a gel or a water/silicone cream base are appropriate for your skin type (normal with an oily T-zone) as they provide a lighter feel compared to oil-based creams.

• Gel Base: Using a suitable gelling agent (like the mentioned Satin Mousse, if it's a gelling agent, or other polymers) with the water and dissolved actives would create a lightweight serum or gel.
• Water/Silicone Cream Base: Utilizing an emulsifier like Warp Cream Maker allows you to create a water-in-silicone emulsion. This type of base is known for its quick absorption and smooth, non-greasy finish, which is ideal for managing oiliness in the T-zone while delivering the water-soluble active ingredients.

Phenoxyethanol is included as a preservative to ensure the stability and safety of the formulation.

When formulating, ensure all water-soluble ingredients are fully dissolved in the water phase. Ingredients like Snail secretion and Copper peptide are sensitive to heat and should be added to the formulation after it has cooled down, typically below 40°C. Maintaining the pH of the final product within the range of 4.5-7.4 is important for the stability and efficacy of ingredients like Copper Peptide.

In summary, your proposed active ingredients are a powerful combination for your skin goals. Formulating them into a gel or a water/silicone cream using a suitable base like Warp Cream Maker would be an effective approach for your skin type.