Palmer's Olive Oil Formula Invigorating Hot Oil Treatment. Feel the power of Extra Virgin Olive Oil revitalizing your hair and scalp. Palmer's Olive Oil Formula Invigorating Hot Oil Treatment, a self-warming hot oil treamtent, penetrates deep to restore moisture and shine to rough damaged hair then cools in minutes for a stimulating scalp experience. Instantly replenishes and brings body to dull, lifeless hair.