Which series of Oprah cosmetics is suitable for women aged 35-40?

Now Oprah has three series, namely, balance moisturizing series, whitening series and time lock series. Generally, time locks are suitable for older people, and white ones are suitable for people with darker skin. Balanced moisturizing series has relatively few nutrients and is suitable for younger people. But we can't simply judge which series to use by age, it depends on the specific situation of the skin.