This study analyzed over 100 online vape shops , finding that roughly 35% offer mail-order purchases of liquid cannabinoid products, often leveraging the legality of hemp-derived compounds.

If you are looking for research papers on the availability and sourcing of liquid THC, one of the most interesting and recent studies is published in January 2026. This paper explores the modern landscape where liquid THC (primarily as infused beverages) is sold across various legal and gray markets.

For those looking at medical-grade liquid THC, this resource details the availability of Dronabinol (synthetic THC) as an oral solution (5 mg/mL), which is prescribed by physicians and dispensed through pharmacies for specific conditions like chemotherapy-induced nausea.

Here are a few key academic papers and findings on where liquid THC is purchased and how the market is evolving:

A deep dive into the consumer market, this study found that while 81.6% of users now purchase through legal channels , a significant portion (roughly 25%) still obtain these products from family or friends . It also points out that many consumers struggle to accurately estimate the THC dosage in liquid form.

Public health considerations about tetrahydrocannabinol (THC)

This research discusses the shift from illegal to legal retail sources. It notes that as legal stores become more geographically proximate and prices drop, consumers are increasingly choosing them over illegal delivery services due to perceived safety and convenience.

This paper highlights that THC-infused liquids are now available in licensed cannabis dispensaries, online, certain bars/restaurants, and even large alcohol retailers (like Total Wine). It specifically notes how the 2018 Farm Bill allowed hemp-derived THC drinks to be sold widely because liquid weight makes it easier to stay under the 0.3% Delta-9 THC dry-weight threshold.