This sunscreen lotion spray formulation was designed to provide broad spectrum (SPF/PFA <3) label SPF 30 performance. SolaStay® S1 provides very rapid and efficient excited state quenching of Avobenzone, protecting it from photodegradation. HallBrite® BHB contributes to UV filter solubility and enhances product feel. This formulation was subjected to in vitro analysis and delivered SPF ~35 , PFA (PPD) ~15 performance with critical wavelength 375 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Water (Aqua) (deionized) | up to 100 | Volatile Carrier | |
| Disodium EDTA | 0.05 | Chelating Agent | ||
| Xanthan Gum (pharma grade) | 0.25 | Thickener (Aqueous) | ||
| B | Homosalate [Homosalate] | 10.00 | UV Filter / Sunscreen Agent | |
| Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | ||
| C12-15 Alkyl Benzoate | 5.00 | Emollient | ||
| Butyloctyl Salicylate | HALLBRITE® BHB* | 5.00 | Emollient | |
| Ethylhexyl Methoxycrylene | SolaStay® S1* | 2.00 | Photostabilizer | |
| Diisobutyl Adipate | HALLTRESS® DIBA SPECIAL | 3.00 | Solvent | |
| C | Butyl Methoxydibenzoylmethane [Avobenzone] | 2.50 | UV Filter / Sunscreen Agent | |
| Benzophenone-3 [Oxybenzone] | 4.00 | UV Filter / Sunscreen Agent | ||
| D | VP/Eicosene Copolymer | 1.50 | Film Former | |
| Ceteareth-25, Disodium Ethylene Dicocamide PEG-15 Disulfate | 3.00 | Emulsifier | ||
| Tri-C14-15 Alkyl Citrate | 1.50 | Conditioning Agent | ||
| E | Microcrystalline Cellulose, Cellulose Gum (4% aqueous) | 10.00 | Thickener (Aqueous) | |
| F | Preservative | a.n. | Preservative | |
| Glycerin | 3.00 | Humectant | ||
| G | Cyclopentasiloxane | 2.00 | Emollient | |
| Olea Europaea (Olive) Leaf Extract, Water | EUROL® BT | 0.20 | Multifunctional Active Ingredient |
| 1 | To the main vessel add the Water of phase A, start mixing, add the remaining phase A ingredients in order, and heat to 70°C. |
| 2 | To a secondary vessel add phase B, start mixing, add phase C, heat to 70°C, and then add phase D. |
| 3 | With both phases at 70°C, add phase BCD to phase A with stirring. After mixing for 5 mins, start cooling and homogenize for 3 minutes. |
| 4 | Continue mixing with cooling. At 50°C or lower, very slowly add phase E, and mix for 20 minutes. |
| 5 | Combine and add phase F, then add phase G. When batch is at 35°C or lower, add phase H with mixing. |
| 6 | Replace any water lost to evaporation and mix until smooth. |
| Appearance | Off White - Pale Yellow Thin Liquid |
| Viscosity (Brk, RVDV-II, Sp 4, 20 rpm, after 24 h at room temperature; mPa·s) | 1350 - 2250 |
| pH | 5.5 - 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
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