Hello, Welcome to healthcare magic. I understand from your query that you are concerned about rosacea and ageing skin. You have not mentioned your age. As a moisturizer, you could use one containing colloidal oatmeal like aveeno. apply immediately after washing your face when it is still damp and reapply often. You could look for a cream containing retinol. It will help for both your rosacea and act as an anti-ageing cream. However, this can worsen your dryness. Hence use only for short periods initially for a few months ( 1 -2 hours) and gradually increase the duration of contact, For sagging skin, there are options like thread lift, fillers and botox. You need a complete evaluation by a dermatologist who will suggest the right treatment or a combination of treatments for you. Hope this helps you. Take care.