The TheraFace Hot and Cold Rings, which attach to your TheraFace PRO device, feature a combined 6 varying temperature settings to better help your skin absorb creams, help reduce facial puffiness, improve radiance, and much more. Hot Ring: Relaxes and reduces tension, Decreases muscle spasms, Increases blood flow. Cold Ring: Decreases pain, Decreases inflammation, Decreases muscle spasms. *Therabody TheraFace Hot and Cold Rings prices are too low for additional discounts or coupons to be applied.