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Our name says it: CōTZ stands for "Contains Only Titanium and Zinc."

All CōTZ sunscreens use Zinc Oxide alone or in combination with Titanium Dioxide. No chemical sunscreen filters. Some mineral sunscreens can be chalky or pasty. Not CōTZ. CōTZ mineral sunscreens are a delight to use, so daily sun protection is a pleasure, not a chore.

Mineral vs. Chemical Sunscreens:

ZINC OXIDE and TITANIUM DIOXIDE are the only FDA-approved sunscreen ingredients that are minerals. Mineral sunscreens and chemical sunscreens work differently.
Mineral sunscreens
(Zinc Oxide and Titanium Dioxide):
Work by reflecting harmful UVA-UVB rays away from your skin – like millions of tiny mirrors
Do NOT penetrate the skin
Are NATURALLY gentle and non-irritating
Do NOT breakdown in sunlight
Chemical sunscreens
(sometimes called "classic" or "organic" sunscreens)
Work by absorbing UVA-UVB energy on/in the skin and converting it to heat
May penetrate the skin
May be irritating to skin and eyes
Break down in sunlight

CōTZ MINERAL SUNSCREENS

REFLECT HARMFUL UV RAYS AWAY FROM YOUR SKIN:

CHEMICAL BASED SUNSCREENS

ABSORB HARMFUL UV RAYS ON/IN YOUR SKIN SURFACE:

All CōTZ sunscreens offer broad spectrum UVA-UVB protection

THE DIFFERENCE BETWEEN UVA & UVB RAYS

UVA RAYS:

Consistently present during all daylight hours and across the year. These rays are as damaging at 9:00am in December as at 2:00pm in July
Penetrate more deeply into the skin
Pass through window glass (yes, while you are driving!)
Responsible for signs of aging such as fine lines, wrinkles, and uneven pigmentation
Increase your risk of skin cancer

UVB RAYS:

Primarily responsible for burning the top layer of the skin
Vary in intensity depending on the time of year

The SPF shown on a sunscreen only measures its effect on UVB rays. Be sure that your sunscreen offers an SPF of 30 or higher. SPF, or "Sun Protection Factor" is calculated such that SPF 30 means the product is blocking 97% of UVB radiation. SPF 50 means it is blocking 98% of UVB radiation. SPF is important, but not enough. Choose sun protection that's broad spectrum, which means that it protects the skin from both UVA and UVB rays.