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Broad Spectrum SPF 30 Sunscreen Cream

This formulation base utilizes Hallstar’s elegant sunscreen solvent and emollient HallBrite® BHB towards optimizing solvent polarity, to which the triplet state quenching photostabilizer HallBrite® PSF has been added, providing substantial additional photostabilization to the composition. In vivo testing (five subjects) indicates static SPF 34, while in vitro testing suggests PFA (PPD) ~12. Critical Wavelength = 379 nm.

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PhaseINCI Name [INN/USAN] (Other Information)Trade Name% WtFunction
AHomosalate [Homosalate] 7.00UV Filter / Sunscreen Agent
Butyloctyl SalicylateHALLBRITE® BHB*5.00Sunscreen Solvent / Emollient
C12-15 Alkyl Benzoate 4.00Sunscreen Solvent / Emollient
Undecylcrylene DimethiconeHALLBRITE® PSF*4.00Photostabilizer
BButyl Methoxydibenzoylmethane [Avobenzone] 3.00UV Filter / Sunscreen Agent
CGlyceryl StearateHALLSTAR® GMS PURE0.90Emulsifier
PEG-100 StearateHALLSTAR® PEG 4400 MS0.80Emulsifier
Cetearyl AlcoholHALLSTAR® TA-1618 CETEARYL ALCOHOL0.50Thickener (Nonaqueous)
VP/Eicosene Copolymer 1.00Film Former
Potassium Cetyl Phosphate, Hydrogenated Palm Glycerides 2.20Emulsifier
DStyrene/Acrylates Copolymer (hollow spherical, 325 nm) 3.00SPF Booster
EWater (Aqua) (deionized)  up to 100Volatile Carrier
Disodium EDTA 0.05Chelating Agent
Xanthan Gum (pharma grade) 0.20Humectant
FPreservative a.n.Preservative
Glycerin 3.00Humectant
GAcrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80  1.50Thickener (Aqueous)
Silica (spherical, 12 µm) 2.00Feel Modification / Enhancement


1In a secondary vessel, add phase A ingredients with mixing until homogenous, then add phase B to A and start heating to 85°C.
2Then add phase C to AB, in order. Once phase ABC is at temperature and homogenous, add phase D to ABC and mix until well dispersed.
3To the main vessel, add the water from phase E with mixing and dissolve Disodium EDTA, then add Xanthan, mixing until fully incorporated.
4Start heating phase E to 80°C and then add premix phase F.
5When both phases ABCD and EF are at temperature and homogenous, slowly add oil phase ABCD to water phase EF with prop mixing.
6Homogenize and cool batch for 3 minutes and then return to prop mixing with continued cooling. Once batch is under 50°C, add phase G ingredients, with mixing until uniform. Replace any water lost and mix until smooth. Perform quality assuarnce checks.


AppearanceOff-White Cream
Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s)11000 - 18000
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

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