Botox injections may be addictive. According to recent research by Dr. Carter Singh, over 50% of those who use Botox expressed a lack of control over the natural ageing process. Nearly 50% expressed anger at people criticising them for Botox use. Over 40% expressed a compulsive motive for using Botox repetitively and over 50% reported actually "feeling" younger, rather than just looking younger.

Dr Singh said regular Botox users seemed to have a greater concern about the ageing process, and their inability to control it.

He said: "Botox has a good safety profile, but it also has potentially addictive qualities.