I went to buy a premium foundation, bought Estee Lauder Double Wear- no help from the sales team and it seemed ok. Went outside to check in the sunlight, after it had oxidised. Im 40 years old with goodish skin but the foundation looks dry and scaly in some places. Should I really moisturise up before or mix something in with the foundation. I like a dewy look. It is good coverage but how can I make it more moisturising....many thanks in advance