Ask your injector how they did the dilution. It should not be higher than 2.5 cc of saline. Go to a board certified derm or plastic surgeon. Cheap Botox is never good and good Botox is never cheap. Best wishes, Dr. Aldo
Injectors may use different dilution ratios when they reconstitute Botox. The dilution is not as critical as the number of actual units of botox injected at each site. However I think your question may be concerning an injector not giving the units charged for by "overdiluting". This can only be prevented by using a reputable physician for your injections.