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Broad Spectrum SPF 50+ Sunscreen Cream

This sunscreen cream was designed to provide broad spectrum (SPF/PFA ≤3) performance. SolaStay® S1 is incorporated to rapidly and efficiently quench the excited states of Avobenzone, protecting it from photodegradation and so improving sunscreen performance. HallBrite® BHB contributes to UV filter solubility and enhanced product feel. This formulation was subjected to in vitro analysis and delivered SPF ~60, PFA (PPD) ~23 performance with critical wavelength 378 nm.

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PhaseINCI Name [INN/USAN] (Other Information)Trade Name% WtFunction
AEthylhexyl MethoxycryleneSolaStay® S1*2.50Photostabilizer
Homosalate [Homosalate] 15.00UV Filter / Sunscreen Agent
Butyloctyl SalicylateHALLBRITE® BHB*5.00Sunscreen Solvent / Emollient
C12-15 Alkyl Benzoate 8.00Sunscreen Solvent
BButyl Methoxydibenzoylmethane [Avobenzone] 2.50UV Filter / Sunscreen Agent
Benzophenone-3 [Oxybenzone] 3.50UV Filter / Sunscreen Agent
CVP/Eicosene Copolymer 1.00Film Former
Glyceryl StearateHALLSTAR® GMS PURE1.60Emulsifier
PEG-100 StearateHALLSTAR® PEG 4400 MS1.50Emulsifier
Potassium Cetyl Phosphate, Hydrogenated Palm Glycerides 2.60Emulsifier
DStyrene/Acrylates Copolymer (hollow spherical, 325 nm) 4.00SPF 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  0.50Thickener (Aqueous) / Emulsion Stabilizer

PREPARATIVE PROCEDURE

1To a secondary vessel add phase A, start mixing, add phase B, heat phase AB to 85°C and then add, in order, phase C ingredients.
2After phase ABC is homogeneous and after phase EF has been prepared, add phase D to phase ABC (right before later combining oil and water phases), mixing well.
3Add the water from phase E to the main vessel, dissolve Disodium EDTA and, with continued mixing, add the Xanthan Gum.
4When the Xanthan Gum is fully incorporated, start heating phase E to 80°C and add premix of phase F with continued mixing.
5When both phases are homogeneous and at their designated temperatures, slowly add oil phase ABCD to water phase EF with prop mixing.
6After prop mixing for 2 minutes, homogenize for 3 minutes and then return to prop mixing and begin cooling batch.
7When batch is below 50°C add phase G and continue mixing and cooling until batch is at room temperature.
8Replace any water lost to evaporation, mix batch until smooth and perform quality assurance checks.

PRODUCT CHARACTERISTICS (25°C)

Appearance Off-white to pale yellow cream
Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s) 6000 - 10000
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: customerservice@hallstar.com Web Site: hallstar.com