They are (mucuna pruriens), from what I've heard on hubermanlab podcast, 100% made of L-Dopa or dopamine. I Don't rememberI've tried Now Foods Mucuna Pruriens in the past, but felt nothing. It says on the label 15% L-Dopa. Perhaps the percentage of L-Dopa has something to do with the effects of this.
Does the product you bought show a percentage of L-Dopa ?