In 1956, Professor Haman firstly proposed the radical theory, found that the life of fisherman working in strong sunshine is shorter, and further proved that ultraviolet can excite the body to produce radicals through research, while radicals can promote the ageing of physiological cycle and speed up the coming of death
Up to 4 areas can be treated in a single session which lasts for about 25 minutes
In adults and older children, the total volume used should also stay within safe limits animal studies suggest up to about 30 mL (the full vial) can be given to an adult without benzyl-alcohol toxicity, but one should still use only the amount needed and discard the rest if sterility is lost
Helander IM, Nurmiaho-Lassila EL, Ahvenainen R et al (2001) Chitosan disrupts the barrier properties of the outer membrane of Gram-negative bacteria
Both units are used, but mcg is more common for B12 doses, mainly for smaller amounts