Light and non-greasy, this Octinoxate- and Oxybenzone-free anti-sand sunscreen gel apply to wet skin without a whitening effect. SolaStay® S1 provides very rapid and efficient excited state quenching of Avobenzone, protecting it from photo-degradation and improving sunscreen performance. HallBrite® BHB provides sunscreen solvency and emolliency. In vitro testing suggests SPF ~53, PFA (PPD) ~18 performance with critical wavelength = 379 nm and over four hours of water resistance. In vivo testing in a US laboratory (5 subjects) yielded static SPF 64, with 80-minute water resistant SPF 62.
|Sequence||Trade Name||INCI Name||%|
|A||Ethylhexyl Salicylate [Octisalate]||5.0|
|SolaStay® S1*||Ethylhexyl Methoxycrylene||3.0|
|C||OLIVEM® 2020||Ethylhexyl Olivate, Sodium Acrylates Copolymer, Polyglyceryl-4 Olivate||2.0|
|Styrene/Acrylates Copolymer (hollow spherical, 325 nm)||1.0|
|D||Water||up to 100|
1 To a secondary vessel add phase A, start mixing, add phase B and heat to 45 – 50°C. Start cooling after phase B is dissolved totally. 2 Add phase C into phase AB and mix until uniform. 3 To the main vessel add phase D, start mixing, add phase E and continue mixing until dissolved. 4 When both phases are homogeneous, slowly add phase ABC to phase DE with proper mixing until the emulsion is fully formed. 5 Add phase F with mixing until batch is uniform, replacing any water lost to evaporation and mixing until smooth.