canna boost is one off the best the buds will swell in the last 2 weeks and the the time line from the seed company is only if u did everything pefect i find it takes atleast 10-14 days longer than advertised from 12/12 switch. the powder your looking for is shooting powder from house and garden but i would not gor that way just be patiet and what the magic happen. i do use a advanced overdrive and budcandy with my canna lineup and humbolt snowstorm and gravity with graet results to boost the pk side of the nutes. my humble 02