There are a load of benefits to added silica (which I'm sure is why farside is adding more than MC provides), detailed here:
Stronger cell walls
Stronger cells mean bigger stems
Increased resistance to environmental stress
Increased resistance to pathogens
Increased resistance to pests
Enhanced metabolic functions
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Stronger cell walls
Stronger cells mean bigger stems
Increased resistance to environmental stress
Increased resistance to pathogens
Increased resistance to pests
Enhanced metabolic functions