To provide you with a good answer to this question, we have to make the distinction between face and body moisturizers.
You should moisturize your face twice a day, in the morning and in the evening, before going to bed. For best results, you should apply the lotion on your neck and chest as well. If you see patches of dead skin on your face, dermatologists recommend that you also use an exfoliant that can help you get rid of any unaesthetic-looking flakes. You should use an exfoliant once a week.
The lotion that you choose should contain no ingredients that might cause irritations. To keep your skin looking youthful, the experts recommend that you opt for a lotion that contains natural extracts from cucumber and aloe, antioxidants, vitamin A and vitamin E.
It is recommended that you  apply the body lotion right after showering. After you get out of the shower, gently pat your skin until it is dry, and then moisturize. If you take showers daily, you don’t have to apply a moisturizer after every bath you take. Instead, use lotion on those parts of your skin that are dry such as your elbows, feet, and heels.
Whenever you take a bath or a shower, it is best to avoid harsh soaps and any type of excessive washing such as scrubbing vigorously. Instead, you should be gentle with your skin and you should use soothing soaps that are fragrance-free. Some experts recommend that seniors avoid daily showers.