Where to buy vapes in Denver, a dispensary or a vape shop, depends on what is inside the cartridge. A THC cart, a nicotine disposable and a bare 510 battery can look nearly the same on a counter, but Colorado sends each one through a different kind of store with its own license and its own rules. Knowing which is which saves a wasted trip, and it explains why one clerk can't sell you what the shop across the street can.

THC Cartridges Come From Licensed Marijuana Stores

THC cartridges come from licensed marijuana stores in Colorado, and since 2023 that includes the hemp-derived kind. SB23-271 bars making or distributing intoxicating cannabinoids such as delta-8, HHC and THC-O as hemp products in the state except for export, and limits them to businesses licensed by the Marijuana Enforcement Division. A delta-8 vape on a smoke shop shelf is a product that shop is not allowed to sell, whatever the package says.

Smoke and vape shops can still carry hemp products that stay inside the state's limits, such as CBD vapes. Under C.R.S. 25-5-427, a hemp product with more than 1.25 mg of THC per serving, or a CBD to THC ratio below 20 to 1, can't be sold to anyone under 21.

Nicotine Vapes and Hardware Come From Vape and Smoke Shops

Nicotine vapes and hardware come from vape and smoke shops, and in Denver each location needs two licenses to sell them: a state retailer license from the Colorado Department of Revenue and a Denver retail tobacco license, renewed every year. Those shops are where you find disposables, pod systems, e-liquid, coils and the plain 510-thread batteries that most THC cartridges screw onto.

The legal age is 21 for all of it, and Colorado goes further than federal law on ID. Stores must ask for a government photo ID from anyone who looks under 50, where the federal rule stops at 30, so expect to show yours unless you clearly look 50 or older.

Buying online is mostly off the table. Colorado bans shipping or delivering nicotine products, vapes included, straight to consumers. The one exception is a licensed Colorado store with a state delivery permit that sends its own employee, 21 or older, to check ID at the door. For most people that means buying in person, and when you need a battery or a pod tonight, VapePenStores keeps a list of Denver vape and smoke shops that shows which ones are open right now.

Denver's Flavor Ban Covers Nicotine, Not Cannabis

Denver's flavor ban covers tobacco and nicotine products, not cannabis, and the city has enforced it since January 1, 2026. City Council passed it 11 to 1 in December 2024, and voters kept it in November 2025, when Referendum 310 passed with about 70% of the vote. A Denver District Court judge dismissed a vape shop group's lawsuit against it in June 2026, so the ban stands.

The rule reaches any tobacco or nicotine product with a taste or smell other than tobacco, or with a cooling or numbing effect. That takes in fruit and dessert disposables, and also menthol and mint, which catches a lot of people off guard. The only exemption is shisha made for a hookah. According to the city's flavor ban FAQ and fine schedule, a store pays $1,000 for a first violation, and a fourth brings a $5,000 fine and a one-year license suspension.

Because the ordinance is written around tobacco and nicotine, a flavored THC cartridge from a licensed marijuana store falls under the state's marijuana rules instead. Denver isn't alone, either: Golden bans all flavored tobacco and nicotine products and Boulder bans flavored vape products, though Colorado still has no statewide flavor ban.

Why Nicotine Vapes Cost More in Colorado

Nicotine vapes cost more in Colorado because of a state tax that voters approved as Proposition EE in 2020. Distributors pay 56% of the manufacturer's list price on vapes and e-liquids throughout 2026, and the rate rises to 62% on July 1, 2027. That tax is built into the shelf price, and the register then adds the 2.9% state sales tax plus city, county and district sales taxes.

Getting Rid of a Dead Vape in Denver

Getting rid of a dead vape in Denver takes one more step than the trash can. The city's Waste Directory says e-cigarettes don't go in the recycling cart: pull the battery and take it to a battery drop-off, and if the battery can't be removed, as with most disposables, treat the whole device as household hazardous waste. The EPA gives the same advice, because lithium batteries can cause fires and the nicotine left inside is toxic.

Denver residents get one Household Hazardous Waste At-Your-Door pickup a year for a $15 co-pay, and household batteries are on the accepted list.

So THC carts, hemp-derived delta-8 included, come from a licensed marijuana store. Nicotine vapes, e-liquid and batteries come from a licensed vape or smoke shop. Both will ask for ID, and inside Denver city limits, flavored and menthol nicotine vapes are off the shelf entirely.

Informational only; not legal advice. Laws change, so check the current rules before you buy. Adults 21+.

Sources: SB23-271, Colorado General Assembly; C.R.S. 25-5-427; Colorado Laws Related to Tobacco Sales to Minors, 2025 edition; Denver retail tobacco store license; Denver tobacco fine schedule; KDVR, Referendum 310 results; Colorado Politics, June 25, 2026; halfwheel on Golden; City of Boulder; Colorado Nicotine Products Tax Guide, January 2026; Denver Household Hazardous Waste At-Your-Door.

Photo: Larimer Square, Denver, by Pdubs.94 via Wikimedia Commons, CC BY 4.0, cropped.