This globally positioned formula delivers superior broad-spectrum protection with daily wear quality esthetics by using elegant sunscreen solvent HallBrite®BHB with HallBrite®PSF, the silicone-based triplet state quencher, to photostabilize Avobenzone. In vitro testing suggest SPF ~ 32, PFA (PPD) ~12. Critical wavelength = 379nm.
Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
---|---|---|---|---|
A | Homosalate [Homosalate] | 7.50 | UV Filter / Sunscreen Agent | |
Ethylhexyl Salicylate [Octisalate] | 5.00 | UV Filter / Sunscreen Agent | ||
Octocrylene [Octocrilene] | 2.75 | UV Filter / Sunscreen Agent | ||
Butyloctyl Salicylate | HALLBRITE® BHB* | 5.00 | Emollient / Sunscreen Solvent | |
Undecylcrylene Dimethicone | HALLBRITE® PSF* | 3.00 | Photostabilizer | |
C12-15 Alkyl Benzoate | 8.00 | Sunscreen Solvent | ||
B | Butyl Methoxydibenzoylmethane [Avobenzone] | 3.00 | UV Filter / Sunscreen Agent | |
C | Ceteareth-25, Disodium Ethylene Dicocamide PEG-15 Disulfate | 3.00 | Emulsifier / Dispersant | |
Tri-C14-15 Alkyl Citrate | 1.50 | Emollient | ||
VP/Eicosene Copolymer | 1.00 | Film Former | ||
D | Styrene/Acrylates Copolymer (hollow spherical, 325 nm) | 4.00 | SPF Booster | |
E | Water (Aqua) (deionized) | up to 100 | Volatile Carrier | |
Disodium EDTA | 0.05 | Chelating Agent | ||
Xanthan Gum (pharma grade) | 0.15 | Thickener (Aqueous) | ||
F | Preservative | a.n. | Preservative | |
Glycerin | 4.00 | Humectant | ||
G | Microcrystalline Cellulose, Cellulose Gum | 0.40 | Suspension Aid | |
Water (Aqua) (deionized) | up to 100 | Volatile Carrier |
1 | To a secondary vessel, add phase A, and start mixing. Disperse phase B with mixing, and start heating AB to 70°C. |
2 | Then add phase C in order with mixing. When phase ABC homogenous, add phase D and mix until D is well dispersed. |
3 | Add water of phase E to the main vessel. Disolve EDTA with mixing. When EDTA dissolved, add Xanthan gum and mix until fully incorporated. |
4 | Start heating phase E to 70°C. |
5 | When both phase are homogenous, and at their designated temperature, add oil phase ABCD to water phase E with prop mixing. |
6 | After mixing for five minutes, start cooling and homogenize until batch reaches 55°C. Resume sweep mixing with conitue cooling. |
7 | At 50°C or lower, add premixed phase F. Then, very slowly add premixed phase G and continue mixing for 20 minutes. |
8 | Replace any water lost to evaporation, and mix until smooth. |
9 | When at desired filling temperature, stop cooling and mixing, perform final quality assurance checks and package product. |
Appearance | Off-White Fluid Liquid |
Viscosity (Brk, RVDV-II, T-D, 20 rpm, after 24 h at room temperature; mPa·s) | 750 - 1250 |
pH | 6.0 - 7.0 |
*Patented and Patent Pending
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