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Insect Repellent 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) on closelyrelated formula JZ5-69 suggests static SPF ~34, while in vitro testing suggest PFA (PPD) ~12. Critical wavelength = 379nm. This formula also contains andiroba oil, a natural product with documented insect repellent properties, for which insect repellency claims cannot currently be made in the U.S.

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PhaseINCI Name [INN/USAN] (Other Information)Trade Name% WtFunction
AHomosalate [Homosalate] 7.00UV Filter / Sunscreen Agent
C12-15 Alkyl Benzoate 4.00Solvent
Butyloctyl SalicylateHALLBRITE® BHB*5.00Sunscreen Solvent / Emollient
Undecylcrylene DimethiconeHALLBRITE® PSF*4.00Photostabilizer
BButyl Methoxydibenzoylmethane [Avobenzone] 3.00UV Filter / Sunscreen Agent
CGlyceryl StearateHALLSTAR® GMS PURE1.70Emulsifier
PEG-100 StearateHALLSTAR® PEG 4400 MS MB1.50Co-emulsifier
Carapa Guaianensis Seed OilBIOCHEMICA® ANDIROBA OIL NATURAL8.00Multifunctional Emollient
VP/Eicosene Copolymer 1.00Film Former
Potassium Cetyl Phosphate, Hydrogenated Palm Glycerides 1.80Emulsifier
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) 0.20Thickener (Aqueous)
FPreservative a.n.Preservative
Glycerin 3.00Humectant
GAcrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80  1.00Thickener (Aqueous)
Silica (spherical, 12 µm) 2.00Deoiling Agent

PREPARATIVE PROCEDURE

1To a secondary vessel, add phase A and start mixing. Add phase B, het to 85°C, and then add phase C individually.
2When AB homogenous, add phase D and mix this oil phase until D is well dissolved
3Add water of phase E to the main vessel, dissolve EDTA with continue mixing and then add Xanthan gum, stirring until fully incorporated.
4Start heating phase E to 80°C and add premix phase F to the water phase with mixing.
5When both phases are homogenous, and at their designated temperature, slowly add the oil phase ABCD to the water phase EF with mixing.
6Start homogenizing and cooling. When the batch reaches 55°C, start sweet mixing and continue cooling. Add simulgel and continue mixing until fully incorporated.
7Add Silica and continue mixing until incorporated. When completely smooth, perform final quality assurance checks.

PRODUCT CHARACTERISTICS (25°C)

AppearanceOff-White Cream Cream
Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s)7000 - 10000
pH5.5 - 6.5

*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: customerservice@hallstar.com Web Site: hallstar.com