Ultra Skin Protect GP4G (In Vivo SPF: 24)
Preparation:1. Add water into main vessel and begin to heat to 80°C. 2. Sprinkle in Phase B at 60°C and mix well until homogeneous. 3. At 80°C, add Phase C and mix well and add Phase D. 4. Prepare Phase E in a side beaker and heat at 75-80°C. 5. At 80°C add Phase E into the main vessel and mix well. The emulsion should be homogeneous. 6. Begin cooling. 7. At 65°C add Phase F and mix well. 8. Cool until 30°C and add Phase G then Phase H, mix well until homogeneous between each phase. 9. Stop at 25°C.
Notes:Appearance: White, butter-like, opaque cream pH: 5.4 – 5.9 Viscosity (D1): 110,000 – 190,000 cps (Brookfield RVT/Spindle D/5 rpm/1 minute/25°C) This formula has passed 3-month accelerated lab stabilities and a 28-day challenge efficacy test. However, the preservative system has not been optimized to its lowest effective level.
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