Skin Care Review: sudden Change Under eye gel

I have been bothered with puffiness and circles under my eyes for some time. I was delighted when Sudden Change came along. I have been using Sudden Change Under eye Gel for sometime now. It really does work to remove puffiness but I have had trouble lately with it leaving a powdery deposit on my skin which spoils the effect. Could you tell me what I am doing wrong and what I can do to avoid this? My skin may be slightly dry but I understand the gel must be used without putting on moisturiser first. Do I use my finger to apply the gel or is there a better method? I. Pirie