A little extra warmth, cleanly made. Heat is a water-based, pH-balanced personal lubricant formulated with a low concentration of capsaicin for a gentle warming sensation that builds with movement. Safe for internal and external use. Water-based & pH-balanced Gentle warming sensation from low-dose capsaicin Vegan-friendly, fragrance-free & paraben-free Compatible with silicone devices and latex & polyisoprene condoms FDA 510(k) cleared · made in the USA