Is Kratom Legal in Colorado: Age Limits, Local Bans, and Penalties

Kratom is legal in Colorado for adults 21 and older, provided the product meets the state’s purity and labeling standards and you are not in a municipality that has banned it. The rules come from Senate Bill 22-120, which took effect July 1, 2024, and Senate Bill 25-072, which takes effect August 12, 2026 and tightens the framework further.

The 21-and-Over Rule

Colorado sets the minimum purchase age at 21, the top of the range among the 18 states that regulate kratom sales.¹ Retailers must ask for government-issued photo ID before every sale.² Stores also cannot display or store kratom in a way that lets someone under 21 access it, so expect to find it behind a counter or in a locked case.³

The statutes target sellers, not buyers. They prohibit sales, distribution, and display to underage individuals rather than penalizing possession by a minor.

What a Legal Kratom Product Looks Like

Not every kratom product on a shelf is compliant. Colorado’s rules limit both what can be inside the package and how it is presented:

No synthesized or semi-synthesized alkaloids. Only compounds naturally occurring in the kratom leaf are permitted.³
7-hydroxymitragynine cannot exceed 2% of the product’s total alkaloid content.³
No adulterated or contaminated products.
No confections or products that mimic candy or otherwise appeal to children (under SB 25-072).³
No combustible or vaporizable kratom products (under SB 25-072).³

Labels must clearly identify the manufacturer’s name and address and list all ingredients.² SB 25-072 adds further required disclosures. Selling a product without a compliant label is itself a violation.

One caution about marketing claims: no kratom product has been approved by the FDA as a drug. Claims that kratom treats pain, anxiety, depression, or opioid withdrawal violate federal rules against false or misleading labeling, regardless of what Colorado allows on the sales side.⁴ The FDA has also found significant levels of lead and nickel in some kratom products at concentrations exceeding safe daily oral exposure limits, which is part of why Colorado’s testing rules exist.⁵

Towns Where the Rules Are Different

State legality does not override every local ordinance. A few Colorado municipalities have gone their own way.

Parker banned retail kratom sales outright in October 2019. No person can sell or offer to sell any kratom product intended for human consumption within town limits, and violations carry fines of up to $500 per offense.⁶

Castle Rock did not ban kratom. Its town council prohibited sales to anyone under 18, with a $300 fine for violations.⁷ Because that is looser than the statewide 21-and-over rule, the state age floor now controls.

Denver sells kratom under the same state framework that governs the rest of Colorado.⁸ Other Front Range towns may have their own ordinances, so if you are buying or carrying kratom while traveling through smaller municipalities, check locally before assuming statewide rules apply.

Penalties for Selling Outside the Rules

Under SB 22-120, selling kratom to someone under 21 or failing to check ID is a civil infraction with a $200 fine.² SB 25-072 reclassifies these prohibited activities as deceptive trade practices under the Colorado Consumer Protection Act, which brings broader enforcement tools and potentially larger penalties than the flat-fine structure.³ A retailer caught selling adulterated products, skipping age verification, or marketing candy-flavored kratom aimed at younger buyers can be pursued under the state’s consumer protection apparatus rather than a modest civil fine.

Driving and Drug Testing

Kratom is not part of Colorado’s standard DUI blood or breath tests, but the state’s impaired driving statute covers driving under the influence of any drug. Colorado’s Drug Recognition Expert program classifies mitragynine under the “Narcotic Analgesic” category, alongside opioids. If a DRE officer suspects impairment and you disclose kratom use, that admission can support a DUID charge even without a standardized test for kratom levels.

Standard 5-panel and 10-panel urine screens used for most workplace testing do not detect kratom. Because it is not federally scheduled, labs do not include mitragynine or 7-hydroxymitragynine unless someone specifically requests specialized testing. Some employers with zero-tolerance policies, particularly in safety-sensitive roles, can order expanded panels that include kratom. Legal to buy is not the same as safe on the job.

Federal Status in Brief

Kratom is not a controlled substance under federal law. The DEA lists it as a “Drug and Chemical of Concern” but has never scheduled it under the Controlled Substances Act.⁹ There is no federal minimum age to buy it, and the TSA does not restrict it in carry-on or checked luggage for domestic flights. What federal law does not do is validate any therapeutic use; the FDA considers health claims about kratom unproven and potentially unlawful.⁴

1
Association of State and Territorial Health Officials. Kratom 101: What You Need to Know
2
Colorado General Assembly. SB22-120 Regulation of Kratom Processors
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Colorado General Assembly. SB25-072 Regulation of Kratom
4
FDA. FDA and Kratom
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FDA. Laboratory Analysis of Kratom Products for Heavy Metals
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Parker Police. Parker Bans the Sale of Kratom
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CBS News. Castle Rock Bans Sale of Herbal Supplement Kratom
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5280. Breaking: Denver to Lift Hold on Kratom
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Congress.gov. Kratom Regulation: Federal Status and State Approaches