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Broad Spectrum Oil in Water SPF 50 Sunscreen Lotion

This oil in water formulation was designed to provide broad spectrum (SPF/PFA<3) label SPF 50 performance. SolaStay® S1 (Ethylhexyl Methoxycrylene) in HallBrite® EZ-FLO TDX Plus provides very rapid and efficient excited state quenching of Avobenzone, protecting it from photodegradation, and also mitigates the photocatalytic and reactive oxygen species generating activities of the oxide to improve sunscreen performance. This formulation was subjected to in vitro analysis and delivered SPF ~50 (50), PFA (PPD) ~19 performance with critical wavelength 381 nm.

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PhaseINCI Name [INN/USAN] (Other Information)Trade Name% WtFunction
AHomosalate [Homosalate] 10.00UV Filter / Sunscreen Agent
Ethylhexyl Salicylate [Octisalate] 5.00UV Filter / Sunscreen Agent
BButyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (40%), Triceteareth-4 Phosphate, Dimethicone Crosspolymer, SilicaHALLBRITE® EZ-FLO TDX4.00UV Filter/Sunscreen Agent / Photostabilizer / Carrier System
Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (23%), C12-15 Alkyl Benzoate, Ethylhexyl Methoxycrylene, Triceteareth-4 Phosphate, Dimethicone Crosspolymer, SilicaHALLBRITE® EZ-FLO TDX PLUS*11.00UV Filter/Sunscreen Agent / Photostabilizer / Carrier System
CVP/Hexadecene Copolymer 1.00Film Former
PEG-8 Stearate, Glyceryl Stearate, Cetearyl Alcohol, Sorbitan OleateOLIVEM® LV FLEX1.80Self-Emulsifier / Liquid Crystal Maker
DButyl Methoxydibenzoylmethane [Avobenzone] 3.00UV Filter / Sunscreen Agent
EWater (Aqua) (deionized) up to 100Volatile Carrier
Butylene Glycol 3.00Humectant
Disodium EDTA 0.05Chelating Agent
Acrylates/C10-30 Alkyl Acrylate Crosspolymer 0.15Thickener (Aqueous)
FPotassium Hydroxide 0.75pH Adjuster
Preservative a.n.Preservative
Cyclopentasiloxane 3.00Emollient
Aluminum Starch Octenylsuccinate 2.00Deoiling Agent


1To a secondary vessel add phase A, start mixing, add phase B to phase A, and heat phase AB to 70°C.
2Add phase C ingredients to phase AB with continued mixing, then, add phase D to phase ABC and mix until completely dissolved.
3Add liquids from phase E to main vessel, dissolve Disodium EDTA, then add Xanthan Gum and mix until fully incorporated.
4Start heating phase E to 70°C.
5With both phases are homogeneous and at temperature, add oil phase ABCD to water phase E with mixing.
6After mixing for five minutes, start cooling and homogenize until batch reaches 55°C (or 3 minutes), then return to prop mixing with continued cooling.
7At 45°C or lower, add phase F one by one.
8Replace any water lost to evaporation and mix batch until smooth.


AppearanceOff-White Lotion
Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa∙s)3000 - 4500
pH6.0 - 7.0

*Patented and Patent Pending

The information presented herein is believed to be accurate and reliable, but no warranty or guarantee, expressed or implied, is made regarding the information or the performance of any product. Further, nothing contained herein shall be taken as any inducement or recommendation to use, manufacture or sell that may infringe any patents or any other proprietary rights now or hereafter in existence, nor to imply compliance with any regulatory requirements

The Hallstar Company - 120 South Riverside Plaza Suite 1620 - Chicago, IL 60606-3911 USA

Tel.: 877 427 4255 (International n.: +1 312 385 4494) - Fax: +1 330 929 3616 - E-mail: Web Site: