<human>:  What is the best skin care routine for combination skin?
<bot>: 
1. Cleanse your skin twice a day using a gentle, non-irritating cleanser.
2. Exfoliate your skin at least once a week using a gentle scrub or chemical exfoliant.
3. Apply a hydrating serum tailored to your combination skin type.
4. Apply an oil-free moisturizer to help balance oil production.
5. Use a facial mask once a week to hydrate and rejuvenate your skin.
6. Protect your skin with a broad-spectrum sunscreen every day.