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Sunscreen SPF 50+ Lotion

This sunscreen lotion formulation is designed to provide U.S. broad spectrum (critical wavelength ≥ 370 nm), label SPF 50+ performance. SolaStay® S1 contributes to photoprotection through stabilization of this Titanium Dioxide-based formulation by mitigating the photocatalytic and reactive oxygen species generating activities of the oxide to improve sunscreen performance. HallBrite® BHB, Sensolene® and Biochemica® Matcha Green Tea butter are included to enhance spreadability and contribute to elegant emollience. In vitro analysis suggests SPF ~63, PFA (PPD) ~13 performance with critical wavelength 379 nm.

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PhaseINCI Name [INN/USAN] (Other Information)Trade Name% WtFunction
AButyloctyl SalicylateHALLBRITE® BHB*5.00Emollient
Ethylhexyl MethoxycryleneSolaStay® S1*2.00Photostabilizer
Ethylhexyl Methoxycinnamate [Octinoxate] 7.50UV Filter / Sunscreen Agent
Ethylhexyl OlivateSENSOLENE®2.00Multifunctional Lipid
Prunus Amygdalus Dulcis (Sweet Almond) Oil, Hydrogenated Vegetable Oil, Camellia Sinensis Leaf PowderBIOCHEMICA® MATCHA GREEN TEA BUTTER1.00Emollient
BTitanium Dioxide [Titanium Dioxide], Aluminum Hydroxide (60 nm primary particle size) 3.80UV Filter / Sunscreen Agent
CVP/Eicosene Copolymer 1.00Film Former
Cetearyl AlcoholHALLSTAR® TA-1618 CETEARYL ALCOHOL0.35Emulsion Stabilizer
Glyceryl StearateHALLSTAR® GMS PURE2.20Emulsifier
PEG-100 StearateHALLSTAR® PEG 4400 MS2.40Emulsifier
DStyrene/Acrylates Copolymer (hollow spherical, 325 nm) 2.40SPF Booster
EWater (Aqua) (deionized) up to 100Volatile Carrier
Disodium EDTA 0.05Chelating Agent
Xanthan Gum (pharma grade) 0.30Thickener (Aqueous)
FPreservative a.n.Preservative
Glycerin 4.00Humectant
GSilica (spherical, 12 µm) 2.00Deoiling Agent


1To a secondary vessel add phase A, start mixing and slowly add phase B to phase A with continued mixing.
2Heat phase AB to 80°C and then add phase C ingredients with mixing. Add phase D right before combining with water phase and mix well.
3To the main vessel add the Water of phase E, start mixing, add the Disodium EDTA and then add the Xanthan Gum and heat this phase to 75°C.
4When both phases are homogeneous and at their designated temperatures, slowly add oil phase ABCD to water phase E with prop mixing.
5Homogenize combined phases for 3 minutes and resume prop mixing.
6Start cooling and when batch is below 50°C add premix of phase F and then phase G with continued mixing.
7Replace any water lost to evaporation and mix batch until smooth and at desired filling temperature.


Appearance Off-White, thick lotion
Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s) 4300 - 7300
pH 6.0 - 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: