I just read a short book about QR composting. According to the author (M. E. Bruce - “Common Sense Compost Making), the activator works through radiation of processed weed ingredients - here is mainly nettle and yarrow with the addition of honey for enzymes. For this reason, dosage is small and homoeopathic size.
She is purely under influence of Dr. Stainer with his biodynamic preparations for composting she says she simplified. Radiation is the key