No, Catrya finds a problem...

"It's beautiful," you mutter under your breath as the colors leave you entranced.

"But I think it's fake," Catrya interrupts as she steps forward and grabs the vial out of your hand. "Or, at least, it's very weak."

The shopkeeper's face changes from anticipation to potentially sell you a very rare potion to dismay and shock. "This has extremely high magical potential! I've run many tests on this mix! What would you know about how strong it is just by looking at it?"

Catrya laughs off the accusation before removing the rubber stopper and lifting the vial up to her nose to smell it. She takes a big whiff, then scrunches up her nose at the unpleasant aroma. "It has a strong catalyst, yes, but the actual magic element is barely there." To prove her suspicions, she tips the vial to her lips and takes the tiniest of sips. After swirling it around in her mouth for a moment she spits it back into the vial, replaces the stopper, and tosses it nonchalantly back at the shopkeeper. "Whatever you were gonna charge us for that, it isn't worth it."

"How would you know that? This is made with the finest ingredients I could get my hands on!" the shopkeeper retorts.