All of our caps, glass bottles, and silicone sleeves are leadless, non-toxic, BPA, BPS, phthalate, and cadmium-free. Our products undergo some of the most rigorous consumer product testing available. We make sure that our products meet and exceed high-bar standards globally such as FDA, CPSIA, California Prop 65 and REACH.We offer pure borosilicate glass that us undecorated. Cadmium is often found in decorated glassware that is colored or tinted which we do not offer as these metallic inks and pigments can lead to contamination.