Bonusan's cPNI-8U has been specially developed for healthcare professionals. Its four ingredients have an optimal synergy for effective use. Thanks to manganese, cPNI-8U contributes to normal energy-yielding metabolism. CPNI-8U contributes to normal energy-yielding metabolism thanks to manganese. Specially developed for healthcare professionals. With finely ground spirulina and chlorella. How to use: Unless otherwise advised, it is recommended to take 3 capsules daily as soon as possible after your last meal, preferably around 8 p.m. Do not exceed the recommended daily dose.