concealer with sunscreen
You'll find concealers with sun protection. The sunscreen is to protect your skin from the skin damaging UV rays you are constantly exposed to in the sun.
A little sunlight is good for you as it helps your skin produce vitamin D. 10 minutes of sunshine each day is more than enough.
The UV rays from the sun can damage the skin. Yes, you could get sunburnt. That is obvious. But even if you do not get sunburnt, excess sunlight can cause your skin to age faster than it should
On top of that, excessive sun exposure could lead to skin cancer.
That is why you should always use a sunscreen. Using makeup with sunscreen is one of the ways to protect your skin.
These concealers do more than conceal your dark rings and blemishes. These concealers contain sunscreen, which protect your skin from sun damage.