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Sunscreen Cream SPF 50

Very rapid singlet state quencher SolaStay® S1 is utilized to impart photostability to Butyl Methoxydibenzoylmethane (Avobenzone). This composition was subjected to in vitro analysis and delivered SPF ~60, PFA (PPD) ~21 performance with critical wavelength 378 nm.

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PhaseINCI Name [INN/USAN] (Other Information)Trade Name% WtFunction
AEthylhexyl MethoxycryleneSolaStay® S1*4.00Photostabilizer
Butyloctyl SalicylateHALLBRITE® BHB*5.00Emollient / Sunscreen Solvent
Ethylhexyl Salicylate [Octisalate] 5.00UV Filter / Sunscreen Agent
Diisobutyl AdipateHALLTRESS® DIBA SPECIAL5.00Sunscreen Solvent
B4-Methylbenzylidene Camphor [Enzacamene] 2.00UV Filter / Sunscreen Agent
Butyl Methoxydibenzoylmethane [Avobenzone] 3.20UV Filter / Sunscreen Agent
CCetearyl AlcoholHALLSTAR® TA-1618 CETEARYL ALCOHOL0.80Thickener (Nonaqueous)
VP/Eicosene Copolymer 1.00Film Former
polysorbate 60; POE (20) sorbitan monostearate 2.00Emulsifier
Glyceryl StearateHALLSTAR® GMS PURE2.30Emulsifier
PEG-100 StearateHALLSTAR® PEG 4400 MS1.40Co-emulsifier
DWater (Aqua) (deionized) up to 100Volatile Carrier
Disodium EDTA 0.05Chelating Agent
Xanthan Gum (pharma grade) 0.15Thickener (Aqueous)
EPreservative a.n.Preservative
Butylene Glycol 3.00Humectant
FWater (Aqua) (deionized)  20.00Volatile Carrier
Phenylbenzimidazole Sulfonic Acid [Ensulizole] 4.00UV Filter / Sunscreen Agent
Sodium Hydroxide (20% aqueous) 2.80pH Adjuster
GCyclopentasiloxane 2.00Feel Modification / Enhancement
Silica (spherical, 12 µm) 2.00Feel Modification / Enhancement
Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80  2.00Thickener (Aqueous)

PREPARATIVE PROCEDURE

1In a secondary Vessel, combine Phase A and mix well. Disolve Phase B with mixing, and heat AB to 80C
2Add phase C with mixing until homogenous
3In the mian vessel, add water of phase D, and dissolve EDTA. When EDTA dissolve, add Xanthan gum and mix until fully incorporated
4Heat main vessel to 80C. Add premix of phase E
5When Oil phase (ABC) and water phase (DE) are both homogeneous and at designated temperatures, slowly add ABC into DE with prop mixing
6Homogenize for 3 mins. Resume prop mixing, and start cool down with mixing.
7Add premixed phase F into ABCDE (pH 7.5-8.0)
8When batch is >50C, add phase G individualy with mixing
9When the batch is uniform, add deionized water to correct for evaporative losses. Continue mixing with smooth.

PRODUCT CHARACTERISTICS (25°C)

Appearance Off White Cream
Viscosity (Brk, RV DV-II, T-D, 20rpm, after 24h at room temperature; mPa·s) 12500 - 28500
pH 6.5 - 7.5

*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