Quick Summary:
Date Tested: 5/28/2025
In this Cotz Sensitive Non-Tinted mineral SPF 40 sunscreen lotion review, I find a solid performing sunscreen. Thanks go to Alisa for the sunscreen sample!
The Cotz Sensitive Non-Tinted mineral SPF 40 is a mineral sunscreen formulation which contains Zinc Oxide at 20%. The Cotz brand markets a vegan, gluten free, and natural approach to skincare.
The Cotz Sensitive Non-Tinted mineral SPF 40 sunscreen lotion reduced 91.87% of irradiated UVA, 88.26% UVB, and 91.65% of total UVI. Good results for a SPF 40. For reference, a high performing SPF 50 tests within the 95%-99% UV blocking range.
Cotz Sensitive Non-Tinted mineral SPF 40 sunscreen lotion ingredients
Active ingredients: Zinc Oxide (20%)
Inactive Ingredients: C12-15 Alkyl Benzoate, Caprylhydroxamic Acid, Caprylyl Glycol, Cetyl PEG/PPG-10/1 Dimethicone, Cyclohexasiloxane, Cyclopentasiloxane, Dimethicone, Dimethicone Crosspolymer, Dimethicone/Vinyl Dimethicone Crosspolymer, Dimethiconol, Disodium EDTA, Glycerin, Hydrogen Dimethicone, Microcrystalline Wax, PEG-10 Dimethicone, PEG-30 Dipolyhydroxystearate, Polyglyceryl-4 Isostearate, Polyhydroxystearic Acid, Polysorbate 20, Sodium Chloride, Stearyl Dimethicone, Tetrahexyldecyl Ascorbate, Tocopheryl Acetate, Triethanolamine, Triethoxycaprylylsilane, Water
Manufacturers Website: www.cotzskincare.com
Cotz Sensitive Non-Tinted mineral SPF 40 characteristics at a glance:
- Sensitive-Skin Friendly: Fragrance-free, non-irritating formula.
- Dewy & Hydrating: Adds moisture without feeling greasy.
- Water-Resistant: Keeps you protected for up to 40 minutes.
- Reef-Friendly: Safe for the ocean.
- Viscosity is low.
Prepared slide BEFORE testing
The Cotz Sensitive Non-Tinted mineral SPF 40 sunscreen distributed very somewhat thinly towards the middle of the slide sample. Layer thickness looks adequate to provide good protection.
Cotz Sensitive Non-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 | 78.45 | 78.86 | |
| UVA | 41233.5 | 3353.5 | 91.87% |
| UVB | 2287.5 | 268.5 | 88.26% |
| UVI | 24.34 | 2.03 | 91.65% |
Want to know more about how I test sunscreen? Head here to read about the details.
Testing notes:
A solid SPF 40. Right on UV filtering target!
Want to try the Cotz Sensitive Non-Tinted mineral SPF 40 sunscreen lotion?
SPF 40 protection in a non-tinted formula!
Disclosure: the Amazon link shown is the only affiliate link I am sharing on this post. I will earn a commission if you click on the amazon listed product link and place an order (at no cost to you). I do not collect any personally identifying information. Every little bit helps to keep this site up and running, I do appreciate it!