This sunscreen lotion formulation was designed to provide broad spectrum (SPF/PFA ≤3), PA ++++, label SPF 50 performance. HallBrite® BHB (Butyloctyl Salicylate) in HallBrite® EZ-FLO TDX aids UV filter solubility and enhances product feel. This formulation was subjected to in vitro analysis and delivered SPF ~ 56, PFA (PPD) ~ 20 (PA ++++), performance with critical wavelength 379 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | |
| Homosalate [Homosalate] | 10.00 | UV Filter / Sunscreen Agent | ||
| Butyloctyl Salicylate, Titanium Dioxide (nano) [Titanium Dioxide] (40%), Triceteareth-4 Phosphate, Dimethicone Crosspolymer, Silica | HALLBRITE® EZ-FLO TDX | 10.00 | UV Filter/Sunscreen Agent / Carrier System | |
| B | Benzophenone-3 [Oxybenzone] | 3.00 | UV Filter / Sunscreen Agent | |
| Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | ||
| C | VP/Eicosene Copolymer | 1.00 | Film Former | |
| Cetearyl Olivate, Sorbitan Olivate | OLIVEM® 1000 | 2.00 | Self-Emulsifier / Liquid Crystal Maker | |
| Glyceryl Stearate | HALLSTAR® GMS PURE | 1.40 | Emulsifier | |
| Cetyl Palmitate, Sorbitan Palmitate, Sorbitan Olivate | OLIWAX® LC | 2.00 | Stabilizing Agent / Liquid Crystal Promoter | |
| PEG-100 Stearate | HALLSTAR® PEG 4400 MS | 0.60 | Co-emulsifier | |
| D | Water (Aqua) | up to 100 | Volatile Carrier | |
| Glycerin | 3.00 | Humectant | ||
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Xanthan Gum (pharma grade) | 0.20 | Thickener (Aqueous) | ||
| Potassium Cetyl Phosphate | 1.20 | Emulsifier | ||
| E | Cylcopentasiloxane, Cyclohexasiloxane | 4.00 | Transient Emollient / Feel Enhancement | |
| Preservative | a.n. | Emollient | ||
| Aluminum Starch Octenylsuccinate | 2.00 | Deoiling Agent |
| 1 | To a secondary vessel, add phase A and start mixing. Add phase B with mixing. Start heating to 75°C. Add phase C to phase AB and mix well until uniform. |
| 2 | To the main vessel add phase D, mixing until fully incorporated. Heat to 75°C. |
| 3 | When both phases are homogeneous at their designated temperature, very slowly add phase ABC to phase D. |
| 4 | Homogenize phase ABCD for 3 minutes, then switch to center-stir mixing. |
| 5 | Start to cool to room temperature. When batch is below 50°C add phase E to phase ABCD and mix until uniform. |
| Appearance (25°C) | Off-white lotion |
| Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s) | 9000 - 14000 |
| pH (as is) | 5.0 - 6.0 |
*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
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