Effectiveness of Biotulin
First the effectiveness of the Spilanthol contained in Biotulin was tested under laboratory conditions using a muscle contraction model (NO animal testing!). Then, the same test was repeated on human study participants.
Even the tiniest amount of Spilanthol is enough to completely relax the muscles beneath the skin treated.
The subsequent trial on the human guinea pigs (also using a minute amount of the formula) confirmed the results already obtained from the muscle contraction model: within just 60 minutes after applying Biotulin Supreme Skin Gel the skin became as smooth and tighten as after Botulinum Toxin injections.