Sterling silver will tarnish over time, this can be caused by perfume to simply toxins in the air around us. It is simply part of silver, fortunately we can do something to help prevent this. Firstly storing your jewellery in a dry air tight bag will prevent this from happening. Secondly follow the guidance on your care leaflet you should receive with your order. Finally, you can purchase a polishing cloth on my website, this will help prevent & remove tarnish from your silver jewellery. For a professional polish please contact me via email, prices range from as little as £10.