Health buffs around the world are getting more picky and critical with what they are taking. Thanks to loads of information available, scrutinizing what is good and what is even better is a no-sweat task. Large manufacturing companies for instance are making innovations not only in packaging but on how the content is made. As certain standards for good manufacturing practices for all classified food supplements have been implemented last year (by law in the US), businesses are not wasting time in catching up with the latest trend and technology.
The best processing technique by far is the chelation of liquid vitamin supplements. Chelation is defined as removing or limiting heavy metals from solutions resulting to a safer product. Heavy metals include Arsenic, Mercury, Manganese, Zinc and other elements which are usually present in certain substances and compounds. Although some of these metals are needed by the body for proper functioning, inducing in large amounts can cause serious health hazards such as nervous system degradation, heavy metal poisoning and worst, death.
Others have patented ways of chelating; some even say they have naturally-chelated ingredients. For as long as the supplement product passes FDA standards, more or less, it is considered safe (but again, food supplements including liquid vitamins claim no therapeutic benefits). Be warned though because for the time being, further testing of those not classified as medicines is not obliged by law. Thus, food supplements do not undergo any sort of mandated testing outside of company procedures.
Packaging is no less a big concern when it comes to the total safety and potency of products. Same with the foil-blister-bottle tablet/pill issue of the 90s, bottling is also debated. Since pure clear glass bottles and vials became the center of sun exposure and spoilage concerns in the 80s, more durable and coated materials now abound the market. The plastic-leakage issue is still alive nevertheless. But companies vary in the quality of plastic they use (some use patented plastic-manufacturing processes) so see and feel the packaging if they pass your preferences. Some may be packaged convincingly but designs are not the main concern here. It is the quality altogether.