Lightweight, Oil-Absorbing Sunscreen Formula (Revised)

Okay, I understand you want to create a lightweight, oil-absorbing sunscreen for oily skin, modifying an existing formula. You asked about adding Dimethicone for smoothness and MatteSilica for oil absorption, and how to adjust the thickness and if MatteSilica might cause dryness.

Based on the staff's recommendations for an oil-absorbing formula:

The staff suggested the following adjustments to achieve a lighter feel and better oil control:

• Reduce SPF Protect Ultra II from 20% to 15%. This concentration is sufficient to achieve SPF 50+.
• Remove Dimethicone from the formula. While Dimethicone can add slip, removing it helps reduce the overall heaviness of the formula, allowing for a lighter, more water-based texture which is preferable for oily skin.
• Replace MatteSilica 5% with MatteSilica XL 3%. MatteSilica XL is specifically designed for maximum oil absorption, performing significantly better than the standard type at a lower concentration.

Keeping the other ingredients you mentioned at their proposed percentages, the revised formula based on the staff's recommendations would be:

• SPF Protect Ultra II: 15%
• Milk Lotion Maker: 3%
• Satin Cream Maker: 1%
• Mild Preserved Eco: 1%
• MatteSilica XL: 3%
• Water: 77% (to reach 100%)

Regarding your specific questions:

• Adding Dimethicone for smoothness: As mentioned, the staff recommended removing Dimethicone to prioritize a lighter feel suitable for oily skin. While silicones like Dimethicone can enhance smoothness, in this case, the focus is on reducing heaviness.
• Adjusting Satin Cream Maker for thickness: According to the product description for Satin Cream Maker, you can increase its percentage (e.g., to 1.5% or 2.0%) if you desire a thicker cream. However, the staff's recommended formula keeps it at 1% to maintain a lighter texture.
• MatteSilica causing dryness/flaking: You were concerned if adding MatteSilica might absorb oil in the formula and cause dryness or flaking on the skin. The staff recommended MatteSilica XL at 3% for superior oil absorption on the skin. The product description for MatteSilica XL states that it helps absorb excess oil on the skin without making your face dry. While it contributes to a matte feel, its function is to control surface oiliness, not strip essential moisture from the skin.

In summary, the staff's recommended adjustments create a sunscreen formula specifically tailored for oily skin by reducing the sun protection active concentration, removing a heavier silicone (Dimethicone), and using a highly effective oil absorber (MatteSilica XL) at a suitable concentration.