Cosmetics Formulation Development

Ask for advice on improving the sunscreen formula for normal to oily skin (sensitive skin). 1 AQUA 33.27% 2 Zinc Oxide 8% 3 Isododecane 8% 4 Tris-Biphenyl Triazine (Tinosorb A2B) 6% 5 Methylene Bis-Benzotriazolyl Tetramethylbutylphenol ( Tinosorb M ) 5% 6 Glycerin 5% 7 Propylene Glycol Dicaprate 5% 8 Butylene Glycol 4% 9 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine ( Tinosorb S ) 3% 10 Polyhydroxystearic acid 3% 11 Safe-B3 ™ ( Vitamin B3, Niacinamide , Switzerland) 3% 12 Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinal A Plus) 2% 13 L-Carnitine ( Carnitine ) 2% 14 Acrylates Copolymer 2% 15 Ethylhexyl Triazone (Uvinal T150) 1.5% 16 Silica 1% 17 MatteSilica XL™ 1% 18 Xanthan Gum 1% 19 Aloe Vera Extract (อัตราสกัด 10:1 FullAssay™) 1% 20 Ceramide Complex (Water Dispersible Powder) 1% 21 Zinc PCA 0.5% 22 Acrylates/​C10-30 Alkyl Acrylate Crosspolymer 0.5% 23 Phenoxyethanol (Extra Pure) 0.5% 24 Vitamin E 0.5% 25 Centella Asiatica Extract (TECA 95%) 0.5% 26 Hyaluronic Acid (Small Molecule) 0.1% 27 Disodium EDTA (anti-precipitation) 0.08% 28 Butylated Hydroxy Toluene 0.05%

[quote="tinoi_akiko"]Advice on improving sunscreen formula for normal to oily skin (sensitive skin) 1 AQUA 33.27% 2 Glycerin 99.5% 6.5% 3 Zinc Oxide Nano EasyDisperse™ 10% 4 Tris-Biphenyl Triazine (Tinosorb A2B) 6% 5 Isododecane 5% 6 Methylene Bis-Benzotriazolyl Tetramethylbutylphenol ( Tinosorb M ) 5% 7 Propylene Glycol Dicaprate 5% 8 Butylene Glycol 4% 9 Safe-B3 ™ ( Vitamin B3, Niacinamide , Switzerland) 4% 10 Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine ( Tinosorb S ) 3% 11 Polyhydroxystearic acid 3% 12 Diethylamino Hydroxybenzoyl Hexyl Benzoate (Uvinal A Plus) 2% 13 L-Carnitine ( Carnitine ) 2% 14 Acrylates Copolymer 2% 15 Ethylhexyl Triazone (Uvinal T150) 1.5% 16 Silica 1% 17 MatteSilica XL™ 1% 18 Xanthan Gum (clear gel type, smooth texture, no stretch) 1% 19 Aloe Vera Extract (อัตราสกัด 10:1 FullAssay™) 1% 20 Ceramide Complex (Water Dispersible Powder) 1% 21 Zinc PCA 0.5% 22 Acrylates/ ​C10-30 Alkyl Acrylate Crosspolymer 0.5% 23 Phenoxyethanol (Extra Pure) 0.5% 24 Vitamin E 0.5% 25 Centella Asiatica Extract (TECA 95%) 0.5% 26 Hyaluronic Acid (Small Molecule) 0.1% 27 Disodium EDTA (anti-precipitation) 0.08% 28 Butylated Hydroxy Toluene 0.05%

Hello, I don't know if there is any problem with the formula. Why do you want to adjust?