Sorry! Product is made by Bonide, not Fertilome:
“This unique concentrate of 4-10-3 fertilizer plus IBA Growth Hormone stimulates fast, strong root development and reduces transplant shock. Highly recommended for promoting greener, more vigorous plants. Use when planting new flowers, trees and shrubs.”
https://www.jungseed.com/product/J51115/1020
Ah-Ha! Did you notice the active ingredient? That same stuff: Indole-3-butyric Acid
I have 3/4+ gallon of this version:
https://www.amazon.com/Green-Light-Organic-Stimulator-Solution/dp/B000BZ8HHW
It does seem to help rooting when transplanting from those 6-packs, in particular.