I know weird question but what should I keep my bf sperm in to prevent it from dying?

Let me explain. I have spent 100's of dollars on acne products just for acne to get worse. I am tired of evrytime I am stressed or eat something or have my cycle my face freaks out and I get acne. I am pretty desperate now and stumble that sperm is actually great for acne and I have a bf so I put two and two together in wha lah! This will be my skin care regimen or at least try it. I am experimentor so why not if science says yes. Although it actually kind of grosses me out...the smell and feeling of sperm but I am beautiful and I want beautiful skin. So if I am keeping it at home...how should I store it to prevent it from dying? Also I see my bf like maybe once a month because I am in school...more like 6 weeks. But help would be appreciated.