It seems natural that since we have such makeup as lipstick and mascara we would likewise have foundation. Withmore is a rough place, and any joy worth their salt knows that you're less likely to get work if you have a massive bruise on your face from the last mark. I'm sure there are other reasons one might want to conceal a bruise. Foundation of the makeup variety could be used to cover bruises, and bruises only. Putting makeup in an open wound seems like... a bad idea, and it wouldn't do anything to your benefit.
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