Buy CBD from a seller that publishes a current certificate of analysis (COA) for each batch, lists the exact CBD and THC content, and ships only to states where hemp-derived CBD is legal. Match the product form to your goal: tinctures for flexible dosing, capsules for consistent servings, topicals for localized use. If the listing hides lab results or promises to cure a disease, close the tab and shop elsewhere.
What to look for when you buy CBD online
- Batch-specific COA from an ISO 17025 accredited lab. The report should show cannabinoid potency, residual solvents, pesticides, heavy metals, and microbials.
- Clear THC disclosure. Hemp products must stay at or below 0.3% THC on a dry weight basis under federal law, but some states set stricter limits.
- Dosing guidance in milligrams per serving and per container. A bottle that says 1000 mg without a serving size tells you little.
- Extraction method. CO2 and ethanol extraction are common. The label should name the method and the carrier oil, such as MCT or hemp seed oil.
- Contact information and a physical US address. A support email alone makes returns and questions harder.
Parameter bands that help you compare products
Use these ranges as a filter, not as a promise of effect.
- THC content: 0.0% to 0.3% for hemp. If you want zero THC, look for THC-free or broad spectrum and confirm on the COA.
- CBD per serving: 5 mg to 10 mg for a low starting point, 15 mg to 25 mg for a common middle range, 50 mg and above for high-dose products. Start low and adjust.
- Spectrum: isolate (only CBD), broad spectrum (multiple cannabinoids, no THC), full spectrum (includes trace THC and other compounds).
- Bottle size and total milligrams: a 30 mL tincture at 1000 mg total gives about 33 mg per 1 mL dropper. Check the math before you compare prices.
- Lab test date: within the last 12 months, and prefer a report tied to the batch number printed on the package.
Pitfalls to avoid
- No COA or a COA that does not match the batch number on the product.
- Health claims that say CBD treats cancer, Alzheimer's, or other diseases. The FDA has not approved CBD for those uses.
- Very low prices with no potency data. Cheap CBD often means low potency or undisclosed fillers.
- Third-party marketplace listings with no brand website or lab access.
- Shipping to states with restrictions. Check your state hemp and CBD rules before you order.
- Full spectrum products if you are subject to drug testing. Trace THC can accumulate.
FAQ
Is it legal to buy CBD online in the US? Hemp-derived CBD with no more than 0.3% THC is legal under federal law, but some states and local jurisdictions add limits. Check your state before purchase.
What is a COA? A certificate of analysis is a lab report for a specific batch. It shows cannabinoid content and contaminant testing. A seller who will not share one is a poor bet.
How much CBD should I take? There is no standard dose. Many people start with 5 mg to 10 mg per day and adjust. Talk with a clinician if you take prescription drugs or have a health condition.
Does CBD get you high? CBD alone does not produce a high. Full spectrum products can contain trace THC, which may show on a drug test.