You should ideally get a facial once a month, but if you are seeing an esthetician regularly for specialized treatments, then a 6-8 week gap between facials is a must as our skin needs that much time to regenerate. However, problem skins & acne prone skins needs facials more frequently or when your esthetician advises so. Seasonal changes, pregnancy, changes in diet, and/or using improper skin care products also cause changes in your skin, therefore a facial is a must.