Rosacea is a condition that can happen to every skin color, man or woman. I inherited it from my mother, and I remember a black female classmate wound up getting rosacea back then (since black or brown skin cannot flush red, rosacea looks more like a combination of a rash with a cluster of pimples from what I remember).
The best over the counter ingredient for rosacea is an ingredient you are not going to like: sulfur. The first product I ever got specifically for rosacea is Prosacea.
It works fine, but it comes in a small tube and is rather expensive if you get rosacea breakouts like I have a tendency to have. I did some research and found out that buying the sulfur on its own is more effective and cheaper. The only drawback is, obviously, the smell.
I bought this on amazon:
I tried it as directed for a few weeks, and it works a lot better than the Prosacea. The only drawback is the slight rotten egg smell that comes with sulfur. It does fade, but I always try to only add just enough to cover my cheeks, nose, and chin.
Azelaic Acid and metronidazole are other active, less smelly ingredients. Azelaic Acid has anti-inflammatory properties, and metronidazole reduces redness and pimples caused by rosecea. From what I see, metronidazole is prescription only.
Anything with cucumber is great for rosecea.
Here are a few more over-the-counter products:
-Eucerin Redness Relief Night Creme
-Cetaphil Redness Relieving Night Moisturizer
-FaceTory Oats Calming Glow Weightless Facial Oil