ZnO-Only Sunscreen SPF 30 is a high-performance formula using zinc oxide as its only filter. The combination of HallBrite® BHB and SolaStay® S1 helps to optimize dispersion quality and prevent ROS generation. Natural emollient and structuring agents Olivem® VS Feel, Oliwax® LC and Biochemica® Shea Butter Organic help to greenify the package and add moisturizing benefits. The final product is non-whitening with a smooth, non-greasy skin-feel.
Phase Trade Name INCI Name % w/w
A HallStar® IPM-NF Isopropyl Myristate 5.00
SolaFresh™️ Diethylhexyl 2,6-Naphthalate 10.00
HallBrite® BHB Butyloctyl Salicylate 5.00
SolaStay® S1 Ethylhexyl Methoxycrylene 3.00
  Zinc Oxide [Zinc Oxide], Triethoxycaprylylsilane (30-200 nm primary particle size) 20.00
B   VP/Eicosene Copolymer 0.75
Oliwax® LC Cetyl Palmitate, Sorbitan Palmitate, Sorbitan Olivate 2.00
Olivem® VS Feel Cetearyl Alcohol, Cetyl Palmitate, Sorbitan Palmitate, Sorbitan Oleate 2.50
C   Glycerin 2.50
  Xanthan Gum (pharma grade) 0.20
D Water Water (aqua) Up to 100
E   Trisodium Ethylenediamine Disuccinate (37% active) 0.20
  Potassium Cetyl Phosphate 1.00
F Preservative   a.n.

Procedure for ZnO-Only Sunscreen SPF 30

  1. To a secondary vessel add phase A and start mixing. Add phase B with mixing. Heat to 80°C and then add phase C.
  2. To the main vessel add premixture of phase D, start mixing and add phase E. Heat phase DE to 75 – 80°C and then add phase F.
  3. When both phases are homogeneous and at their designated temperatures, slowly add phase ABC to phase DEF with prop mixing.
  4. After 5 minutes of mixing, homogenize batch for 5 minutes, and then start cooling with central mixing.
  5. When batch is < 50°C, add phase G with mixing
  6. Continue mixing until batch is at room temperature, replacing any water lost to evaporation and mixing until smooth.

Product Characteristics

Appearance (25°C): Off-white lotion
Viscosity (10 rpm, Brk, RVDV-E, T-B, after 24h at room temperature, mPa·s): 3500 – 5500
pH as is: 7.5 – 8.5
ZnO-Only Sunscreen SPF 30

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Formulation No. JZ14-269