The SO SO Dark Tanning Serum, is the ultimate luxury skincare mixed with the darkest eco cert tanning agents to soak into the skin, giving flawless results from application. With an instant bronzing guide that glides over the skin giving a perfect finish from the start, so you can look perfect and bronzed as your ultra, extra, very dark tan begins to develop. So So Dark has been under development for years to bring you the darkest possible results whilst delivering the highest possible skincare and hydration to your skin. If your looking for the smoothest most tanned skin around, you won't be disappointed with this unbelievable glow from start to finish.