Questions about a high-active cream formulation for day/night use, dry skin, and eye area

Thank you for your question and for providing your formula. We have reviewed your formula and the previous response from our staff.

Regarding your questions:

• Ingredient Compatibility: Based on the types of ingredients listed, they are generally compatible for use in a cosmetic formulation.
• Proportions for Day Cream: Your formula contains a high concentration of active ingredients targeting firming, whitening, and anti-wrinkle effects. While this can be effective, as the staff mentioned, it might be too potent for dry skin and could potentially cause irritation. The proportion of Light Cream Maker (1%) also seems low for emulsifying the total oil phase (Oil 4% + Phytosterols 2% + Phospholipid 2% = 8%), which might affect the stability of the cream.
• Adding Hi-EGCG for Night Cream: Yes, adding 2% Hi-EGCG is generally compatible with the other ingredients and suitable for a night cream. EGCG is a potent antioxidant that can help protect the skin from damage.
• Use around the eyes: The skin around the eyes is very delicate and often drier and more sensitive than the rest of the face. Given the high concentration of multiple active ingredients in this formula, it might cause irritation in the eye area, especially for dry skin. We recommend exercising caution and perhaps doing a patch test on a small area near the eye before applying it widely, or considering using a product specifically formulated for the sensitive eye area.

As the staff previously advised, for dry skin, it would be beneficial to adjust the formula by increasing the proportion of moisturizing ingredients such as oils, butters, waxes, and other emollients to provide more hydration and support the skin barrier. You might also consider slightly reducing the concentration of some highly active ingredients if you experience sensitivity.

The staff's suggested mixing method is also recommended for better emulsification and cream stability.

We hope this helps!