Local retailers are still selling a synthetic high under the K2 name, with one minor change to the packaging.
New legislation banned two chemicals used in the product at midnight on Thursday, making it a criminal offence to possess, sell or supply it.
But a day later the same packaging was back in stock with a slight modification - a small sticker on the front which reads, "This product is fully compliant as of 9th of May, 2013".
Hawke's Bay Today was able to pick up a 2.5g bag from a store in Napier for the same price as before - $20 - and at no stage was ID requested by the store clerk.
No ingredients are listed on either the old or new packet, making it impossible to tell the difference, simply by looking at it.
Both have identical instructions for use and recommend that K2 be smoked "responsibly" and "in moderation".
A concerned local man, who did not wish to be named, sent an email to Hawke's Bay Today expressing his horror that the brand had appeared again.
"Went to the dairy today with a mate that was buying legals, he asked if there was K2 and to our surprise there is. Looks exactly the same except they put a sticker on it saying that it's compliant as of the 9th of May," he said.
Having such easy access to K2 and substances like it, simply continued to feed a growing addiction, he added.
His answer? To cut the supply off at its source - dairies and stores that continue to stock it behind the counter, next to the lollies and ice cream.
"Its about time some people did something to stop these dealers. It's only going to get more ugly. What does it take to stop them selling it?
"The new law is too far away. What will hit Hawke's Bay next? The legal crack that's around. I sure don't want to see teens hitting a crack pipe outside Maccas after school."