Plant-based repellent. Repels mosquitoes that may carry west nile virus. Plant-based repellent unscented lotion. Off! Botanicals insect repellent's unique formula uses a plant-based ingredient to repel mosquitoes for up to 2 hours. Off! Botanicals insect repellent is effective, dependable protection that feels great on-not sticky or greasy. Contains no added fragrances or dyes. Repels mosquitoes, black flies, gnats, and no-see-ums.