Red and near-infrared light induces intracellular Ca2+ flux via the activation of glutamate N-methyl-D-aspartate receptors.

*JustLight products are intended for topical heating for the purpose of elevating tissue temperature for temporary relief of minor muscle pain, joint pain, arthritis pain, muscle spasms, temporary relaxation of muscle, and temporary increase in local blood circulation. JustLight products are not intended to diagnose, cure, or prevent specific diseases of medical conditions. The JustLight website is for education and information purposes only and is not intended as medical advice or a substitute for medical advice. JustLight does not intend these products to cure any physical, skin, or mental conditions solely from their use. A qualified health professional should always be consulted prior to using the products, and professional medical attention should be sought with regard to any serious or life-threatening conditions.