Without seeing your skin it's hard to prescribe to you what to use. Normally use Purifier day and night, however you could use Nimue day in the morning and Purifier at night. Weekly exfoliate with exfoliating enzyme, followed by a mask for your skin classification. After about 2 months when your skin is really working for itself you can introduce either Active Lotion or Active Gel once a week, this really is ace stuff!
SPF 20 is probably the best product for all skin classifications as 80% of ageing is caused by uv damage from the sun - even when indoors! You should apply it regularly during daylight hours - hourly if possible, but hey I live in the real world so at least several times a day.