Pure essential oils, massage oils, and household oils like coconut or olive oil should never be used in your hot tub, they can damage seals, clog filters, disrupt water chemistry, and even void your warranty. Instead, choose hot tub-safe options such as water-dispersible spa crystals (lavender, eucalyptus, citrus, vanilla), fragrance beads, or liquid aromatherapy blends designed for spa use. These dissolve or disperse completely, protect your system, and maintain sanitizer effectiveness.
For therapeutic benefits, lavender aids relaxation and sleep, eucalyptus supports respiratory clarity, peppermint boosts energy and muscle recovery, and chamomile soothes skin and anxiety. Add aromatherapy only after heating and chemical balancing, starting with half the recommended dose, and store products in a cool, dry place away from sunlight and spa chemicals.