Quote:
Originally Posted by HoaNui
Auxins, I have been told, have to be handled with care as they are suspected of causing, or do cause, cancer.
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IAA is a growth regulator and is used the same as Thrive, to stimulate the root growth. The one you maybe thinking of is the one used in agent orange. IAA is recognized as beening safe and is used by many growers. It is also expensive but a little goes a long way and is much less costly than Thrive. Do some googleing and see if it is for you. Good luck.