Use a gentle cleanser to completely wash your face before gently patting it dry. Allow your skin to breathe (and do not apply any additional moisturizers, serums, or treatments). Examine your cheeks, chin, nose, and forehead for any shine after 30 minutes.
1: Evaluate whether your skin feels parched after another 30 minutes, especially if you smile or make any other facial gestures. Your skin is most likely dry if it feels tight.
2: Your skin is most likely normal/combination if there is a perceptible sheen on your nose and forehead.
3: You have oily skin if you have a shine on your cheeks in addition to your forehead and nose.
The demands of our skin might change over time, so it's important to take the time to figure out what they are so that it can operate and look its best. Keeping your skin's health in mind and "checking in" frequently to see whether any changes to your existing regimen are required can keep it balanced and healthy.
For more information read this blog post.