This oil-in-water formulation was designed to provide broad spectrum (SPF/PFA ≤3) performance. SolaStay® S1 (Ethylhexyl Methoxycrylene) in HallBrite® EZ-FLO TDX Plus mitigates the photocatalytic and reactive oxygen species-generating activities of titanium dioxide, rapidly and efficiently quenching the excited states of Avobenzone and protecting it from photodegradation — thus improving sunscreen performance.
HallBrite® BHB in HallBrite® EZ-FLO TDX Plus aids wetting and dispersion of the titanium dioxide and contributes to UV filter solubility and enhanced product feel.
In vivo testing yielded static SPF 55, PFA 16 in a Korean lab. In vitro SPF ~55, PFA ~18 with critical wavelength 379 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Caprylic/Capric Triglyceride | 2.50 | Emollient | |
| Ethylhexyl Methoxycinnamate [Octinoxate] | 7.50 | UV Filter / Sunscreen Agent | ||
| Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (23%), C12-15 Alkyl Benzoate, Ethylhexyl Methoxycrylene, Triceteareth-4 Phosphate, Dimethicone Crosspolymer, Silica | HALLBRITE® EZ-FLO TDX PLUS* | 17.00 | UV Filter/Sunscreen Agent / Photostabilizer / Carrier System | |
| B | 4-Methylbenzylidene Camphor [Enzacamene] | 4.00 | UV Filter / Sunscreen Agent | |
| C | VP/Eicosene Copolymer | 1.00 | Film Former / Water Resistance Enhancer | |
| Glyceryl Stearate | HALLSTAR® GMS PURE | 2.30 | Emulsifier | |
| PEG-100 Stearate | HALLSTAR® PEG 4400 MS | 1.60 | Co-emulsifier | |
| Potassium Cetyl Phosphate, Hydrogenated Palm Glycerides | 3.00 | Emulsifier | ||
| D | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| E | Water (Aqua) (deionized) | up to 100 | Volatile Carrier | |
| Glycerin | 3.00 | Humectant | ||
| F | Disodium EDTA | 0.05 | Chelating Agent | |
| Xanthan Gum (pharma grade) | 0.30 | Thickener (Aqueous) | ||
| G | Preservative | a.n. | Preservative | |
| Cyclopentasiloxane | 5.00 | Feel Modification / Enhancement | ||
| Aluminum Starch Octenylsuccinate | 2.00 | Deoiling Agent | ||
| H | Acrylamide/Sodium Acryloyldimethyltaurate Copolymer, Isohexadecane, Polysorbate 80 | 1.00 | Thickener (Aqueous) |
| 1 | To a secondary vessel add phase A, start mixing and slowly add phase B components individually with continued mixing. |
| 2 | Heat phase AB to 85°C, add phase C ingredients with mixing, and then add phase D and mix until phase D is fully dissolved. |
| 3 | To the main vessel add phase E, start mixing and then add phase F items in order and heat phase EF to 80°C. |
| 4 | When both phases are homogeneous and at their designated temperatures, slowly add phase ABCD to phase EF with mixing. |
| 5 | Homogenize batch intensively for 3 minutes, start cooling and when the batch is below 50°C, add phase G items one by one with mixing. |
| 6 | Add phase H if the batch is too thin. |
| 7 | When the batch is uniform add deionized water to correct for evaporative losses and continue mixing until smooth. |
| Appearance | Off-white to pale yellow cream |
| Viscosity (Brk, RV DV-II, T-D, 20 rpm, after 24h at room temperature; mPa∙s) | 15000 - 24000 |
| pH | 5.0 - 6.0 |
*Patented and Patent Pending
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