Want a premium food supplement to support your training or workout programme? Popular among serious, strength-focused athletes, Animal MSTAK has a comprehensive formula that includes naturally occurring amino acids - the building blocks of protein - and range of well-known plant based extracts. Take Animal MSTAK anytime during the day as the perfect complement to your resistance training routine. Want a premium food supplement to support your training or workout programme? Popular among serious, strength-focused athletes, Animal MStak has a comprehensive formula that includes naturally occurring amino acids - the building blocks of protein - and range of well-known plant based extracts. Take Animal MSTAK anytime during the day as the perfect complement to your resistance training routine. Includes an energy complex containing caffeine. Contains theobromine. Contains kola nut A supplement containing amino acids, and a touch of fruit and plant extracts. Read more about the product.