My bad. I have missed his reference to 12 weeks. I was referring to his quote that we would know results in 4 to 6 weeks.
As pointed out, phase 1 is only checking individual components of the formula. This will give guidance towards the final combination formula. So the final combination formula, wont be ready for testing until phase 1 is complete.
The length on the phase two is unknown. if they can find the “goldilocks” formula early on, with great results, it could be done and dusted quickly. If more trials to get the formula just right are required, it would need more time. I am guessing this is why there is no timeline for phase 2.