Experts share long-term impacts after one identical twin used botox and one didn't in 20 year experiment
The scientific study concluded: "Long-term treatment with botox can prevent the development of imprinted facial lines that ...
Identical twins shared major difference after one used botox for 20 years and the other didn't
A set of twins took part in a study in 2006 tracking the differences when one used botox and the other didn't.