A circular rash isn't always ringworm. While the bullseye circle rash is typical of ringworm, a fungal infection, the cause also can be an allergic reaction, skin disorder, or other type of skin ...

You'll need one of the best ring lights if you're looking to improve ... If you want the characteristic halo reflection in your eye, which is extremely common in beauty and fashion content ...

Forbes contributors publish independent expert analyses and insights. Jamie Carter is an award-winning reporter who covers the night sky.