Mixing Instructions for Sunscreen Formula with SPF Protect Ultra II

Based on the conversation with the staff regarding your question about changing "SPF Protect Ultra™" to "SPF Protect Ultra™ II":

1. The staff explained that a direct replacement to achieve the exact same formula is not possible due to ingredient differences.
2. You then proposed a new formula using "SPF Protect Ultra II" at 15% along with other ingredients.
3. The staff reviewed your proposed new formula and confirmed that it can be made and provided the mixing instructions for it.

Here are the mixing instructions for your proposed formula (using SPF Protect Ultra II 15%, Milk Lotion Maker 3%, Satin Cream Maker 0.7%, Water 78.3%, Mild Preserved Eco 1%, Alpha Arbutin 2%), as provided by the staff:

**Mixing Instructions:**

1.  Heat ingredients 1 (SPF Protect Ultra II) and 2 (Milk Lotion Maker) to 70-80°C and mix or stir until homogeneous, forming a liquid oil phase.
2.  Mix ingredients 3 (Satin Cream Maker) and 4 (Water) together until a cloudy gel is formed. Heat this mixture to 70°C, close to the temperature of the oil phase from step 1.
3.  Gradually add the water phase (from step 2) into the oil phase (from step 1), mixing or stirring until a cream is formed.
4.  Let the mixture cool down to below 50°C, then add ingredients 5 (Mild Preserved Eco) and 6 (Alpha Arbutin). Mix or stir until dissolved and incorporated into the formula.

**Note:** If producing for sale, please perform a stability test by heating/cooling or using a Centrifuge to test for separation before selling.