"This is a particularly nasty drug that not only adversely affects the users, but also causes significant harm to the family and friends of those using the drug.
"There can also be an increase in crime in a community as a result of drug users trying to fund their habit," he said.
"Methamphetamine in the community and those dealing the drug are a priority for police and we will continue to work with a variety of agencies and individuals to encourage those affected by methamphetamine to ask for help - a community response to mitigating the negative impact of this drug is required, there are a number of very good local and national services available to the public to help those using to get drug free."
Both women were remanded in custody and due to reappear in Dunedin District Court on 15 December.
Additional people could also be charged, police said.
Anyone with information on the manufacture and supply of illicit drugs can report this anonymously by ringing Crimestoppers on 0800 555 111