This water-in-oil, zinc oxide-only sunscreen cream provides SPF 50 sun protection without using organic UV filters. PEG-free Olivem® 2090 is the only emulsifier used in this cold process. SolaPure™ Glo is a multifunctional emollient with antioxidant benefits. Moisturizing Biochemica® Sweet Almond Oil and structuring HallStar® Zinc Stearate are great agents within this W/O system. In vitro analysis suggests SPF ~ 55, PFA (PPD COLIPA 2011) ~ 18, UVA1/UV = 0.82, and critical wavelength 373 nm.
| Phase | INCI Name [INN/USAN] (Other Information) | Trade Name | % Wt | Function |
|---|---|---|---|---|
| A | Prunus Amygdalus Dulcis (Sweet Almond) Oil | Biochemica® Sweet Almond Oil | 26.00 | Emollient |
| Butyloctyl Salicylate | HallBrite® BHB* | 5.00 | Emollient / Sunscreen Solvent | |
| Ethylhexyl Methoxycrylene | SolaStay® S1* | 3.00 | Photostabilizer | |
| Polyglyceryl-4 Olivate/Polyricinoleate | Olivem® 2090 | 4.00 | Multifunctional Cold Process Emulsifier | |
| Vegetable Oil (and) Simmondsia Chinensis (Jojoba) Seed Oil (and) Curcuma Longa (Turmeric) Root Extract | SolaPure™ Glo | 6.00 | Multifunctional Emollient | |
| B | Zinc Oxide | 25.00 | UV Filter / Sunscreen Agent | |
| C | Zinc Stearate | HALLSTAR® ZINC STEARATE | 1.00 | Gellant |
| D | Water (Aqua) | up to 100 | Volatile Carrier | |
| Glycerin | 2.00 | Humectant | ||
| Sodium Chloride | 1.00 | Stabilizing Agent | ||
| Preservative | a.n. | Preservative |
PREPARATIVE PROCEDURE
| 1 | To the main vessel, add phase A with mixing until uniform. Heat up to melt SolaPure™ Glo if needed |
| 2 | Add phase B into phase A, and mix strongly until uniform, then add phase C and mix until uniform |
| 3 | To a secondary vessel add phase D with mixing: |
| 4 | When ABC and D phases are homogeneous, very slowly add phase D to phase ABC; |
| 5 | After combination, strongly mix or homogenize until uniform. |
PRODUCT CHARACTERISTICS (25°C)
| Appearance | Off-white cream |
| Viscosity (20 rpm, Brk, RV DV-II, T-D, after 24h at room temperature; mPa∙s) | 25000 - 40000 |
*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 hallstarbeauty.com