Tea tree, lavender and peppermint scalp treatment. Snake Oil treats dandruff and it smells like it means business. Melt it on to your fingertips, and massage it right into your scalp. Leave the oils to do their work for twenty minutes or so, and wash it off with Soak and Float shampoo. Dandruff is caused by many things and made worse by stress. Tea tree kills off the offending microbes and natural butters soften the scalp to nurse it back into shape.