InSPAration Joy Aromatherapy Crystals are a soothing blend of fruits and wildflowers that will enhance any spa, allowing your worries to drift away on the current. Its unique formula contains moisturizers to virtually eliminate dry skin no matter how long you spend in your spa or hot tub, instead leaving bathers with silky smooth skin. Best of all, Joy Aromatherapy Crystals are safe for use with all tub surfaces and will not cause foam buildup, making it a great choice for any spa or hot tub owner.