Perfume oils are typically used on the skin or clothes as a substitute for traditional scents and alcohol-based perfumes. It masks body odor and helps one smell nice without having a large personal fragrant status. Overall, they provide a more potent, natural scent than mainstream alcohol-based perfumes.
Oil-based perfumes are more effective and give you more coverage, therefore it's best to use an oil-based perfume. It's safe to apply.