Quick Summary:
Date Tested: 5/28/2025
In this Cotz Face Prime and Protect Tinted mineral SPF 40, I find a high performing sunscreen formulation. Thanks go to Alisa for the sunscreen sample!
The Cotz Face Prime and Protect Tinted mineral SPF 40 sunscreen lotion and makeup primer is a mineral sunscreen/makeup primer formulation which contains Titanium Dioxide at 8%, and Zinc Oxide at 3.8%. This brand touts its vegan, gluten free, and natural approach to skincare (as evidenced by its short list of inactive ingredients!).
The Cotz Face Prime and Protect Tinted mineral SPF 40 reduced 97.77% of irradiated UVA, 96.33% UVB, and 97.68% of total UVI. Good results most likely due the higher viscosity and layer thickness.
Cotz Face Prime and Protect Tinted mineral SPF 40 sunscreen ingredients
Active ingredients: Titanium Dioxide (8%), Zinc Oxide (3.8%)
Inactive Ingredients: Alumina, Cyclohexasiloxane, Cyclopentasiloxane, Dimethicone, Dimethicone Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethiconol, Iron Oxide, Lauryl PEG/PPG-18/18 Methicone, Hydrogen Dimethicone, PEG-10 Dimethicone
Manufacturers Website: www.cotzskincare.com
Cotz Face Prime and Protect Tinted mineral SPF 40 sunscreen characteristics at a glance:
- Animal Test-Free and Vegan
- Gluten Free
- Mineral sunscreen and makeup primer in one
- Viscosity is very high.
Prepared slide BEFORE testing
The Cotz Face Prime and Protect Tinted mineral SPF 40 distributed very evenly, and created a thick layer on the prepared slide sample.
Prepared slide AFTER testing
After the 2 hour test procedure, the sample exhibited evidence of desiccation. You can see how it now looks like a cute cell. This did not reduce the UV filtering ability of the formula during the 2h test.
Cotz Face Prime and Protect Tinted mineral SPF 40 UV blocking test results
Ultraviolet light quick reference:
UVA: The Ultraviolet wavelength from 315nm – 400nm. The “Aging UV light” – Causes wrinkles.
UVB: The Ultraviolet wavelength from 280nm – 315nm. The “Bad UV light” – Causes skin cancer.
UVI: The global sun UV index. The more a sunscreen can reduce the level of UVI, the better.
UV test results:
Ultraviolet sensor readings:
| Before Sunscreen | After Sunscreen | % UV Blocked | |
| TEMP | 74.49 | 72.61 | |
| UVA | 42936 | 955.75 | 97.77% |
| UVB | 2348 | 86.25 | 96.33% |
| UVI | 25.32 | 0.59 | 97.68% |
Want to know more about how I test sunscreen? Head here to read about the details.
Testing notes:
Protects well, goes on thick.
Want to try the Cotz Face Prime and Protect Tinted mineral SPF 40 sunscreen lotion?
High UV protection abilites.
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