You can buy CBD almost anywhere now: from a brand's own website, natural grocers, pharmacies, smoke shops, gas stations, farmers markets and pet stores. The place matters less than one question: can you see a lab report for the exact batch you are buying, and can you return the product if it is wrong? Channels where the answer is usually yes carry less risk. Channels where it is usually no carry more.
Location is not a quality guarantee in either direction. A national store shelf can still hold a mislabeled product, and a small maker at a market can hand you a clean, current report on the spot. So the checks travel with you, whatever door you walk through.
A quick word about who is writing this. I am a chemist and I formulate CBD products for Proof, and we sell CBD online, so weigh my view with that in mind. I have kept the advice criteria-based so it works for any brand.
Why the channel matters less than the checks
Studies have found label problems wherever researchers looked. In a JAMA study of 84 CBD extracts bought online in 2016, only about 31% contained within 10% of the CBD on the label, and THC was detected in 18 of them (Bonn-Miller et al., JAMA 2017). A later study bought 105 hemp-derived topical products in July and August 2020, 45 from pharmacies, grocery stores and beauty stores in Baltimore and 60 online. Of the 89 that listed a CBD amount, only 24% were accurately labeled, and THC was detected in 35% of all 105 (Spindle et al., JAMA Network Open 2022).
Neither study tells you which store to trust today. Both tell you the label alone is not enough, whether you are clicking "add to cart" or standing in an aisle.
Where to buy CBD: the channels compared
This is a general guide, not a ranking of any retailer. "Risk" here means how hard it usually is to confirm what is in the bottle and to get your money back.
| Channel | What you usually find | How easy to check the COA | Returns | Risk |
|---|---|---|---|---|
| Brand website (direct) | The brand's full line, with product pages and policies | Often easy: many brands post batch COAs online | Written policy on the site | Low to medium (watch for fake stores) |
| Natural grocers and wellness shops | A curated shelf, often topicals and oils | Varies: look for a QR code or ask staff | Store policy, often generous | Low to medium |
| Pharmacies and big chains | Topicals and some oils from larger brands | Varies: the shelf rarely shows the report | Store policy | Medium |
| Smoke shops, gas stations, convenience stores | CBD next to delta-8 and other intoxicating hemp products | Often hard: may need a QR code or a web search | Often final sale | Higher |
| Amazon and other marketplaces | On Amazon.com, "hemp" products that are not supposed to contain CBD | Rarely possible from the listing | Marketplace policy | Higher for CBD shoppers |
| Farmers markets and pop-ups | Small local makers | You can ask the maker directly | Informal, ask first | Varies widely |
| Vet clinics and pet stores | Pet CBD oils and chews | Varies: ask for the batch report | Store or clinic policy | Low to medium |
Buying direct from a brand online
Buying from a brand's own site usually gives you the most information: the full ingredient list, the serving size, the COAs and the return policy, all in one place. It is also the one channel where you can email the people who made the product.
What to check: a COA with a batch number you can match to what arrives, a named lab, a real address and contact page, and a return policy you can read before checkout. For our part, our reports are on our lab testing page, the batch number and expiry date are printed on each box, and our 30-day money-back guarantee is written out in full.
The main risk online is not the channel but fake or deceptive stores, including "free trial" offers that turn into subscriptions. Our guide to buying CBD online safely covers the red flags. Shipping rules differ by state, which our piece on whether CBD can ship to your state explains.
Grocers, wellness shops and pharmacies
Natural grocers and larger chains feel safer, and a store with a buyer who vets brands can be a good filter. The 2020 topicals study above is a useful reminder, though: its in-store samples came from pharmacies, grocery stores and beauty stores, and label accuracy was still a problem.
In a store, look for a QR code or batch number on the package and scan it before you buy. If the code leads to a generic page with no batch match, give it no more weight than any other unverified label. Store return policies are often friendlier than brand policies, which is a genuine plus. (If you are in Sonoma County, Proof is on the shelf at select local stores, and the same checks apply to us there.)
Smoke shops, gas stations and convenience stores
These shops often sell CBD on the same shelf as delta-8 THC and other intoxicating hemp products. The FDA notes that delta-8 products "may be purchased online, as well as at a variety of retailers, including convenience stores and gas stations, where there may not be age limits" (FDA). Packaging can look similar, and both may say "hemp."
If you buy here, read the total THC on the lab report, check the seal, and ask about returns before paying. Our full checklist is in gas station and smoke shop CBD: what to check.
Amazon and other marketplaces
As of 25 September 2026, Amazon's seller policy on drugs and drug paraphernalia lists "Cannabidiol (CBD) and intoxicating hemp products" among the products that can't be sold, including "full-spectrum or broad-spectrum hemp oil, balms, or capsules." It adds a note that Amazon Fresh and Whole Foods Market permit "certain topical CBD products" (Amazon Seller Central).
So a "hemp oil" listing on the main store is, under Amazon's own rules, not supposed to be a CBD product. Read the ingredient list: if it says hemp seed oil, you are looking at a seed oil, not a CBD extract. Our guide to whether CBD on Amazon is real shows how to read those listings.
Farmers markets, pet stores and other places
Farmers markets and pop-up events can be a good way to meet small makers. Ask for the batch COA on your phone right there; a maker who has it ready is showing you something. Returns are usually informal, so ask before you pay.
For pets, vet clinics and pet stores each have strengths, and species matters. Our guide to where to buy CBD for pets compares them, and it is worth talking to your veterinarian first.
Licensed cannabis dispensaries are a separate, state-licensed channel whose products can contain THC, so if you shop there, the same label and lab checks apply and you should ask which products contain THC.
FAQ
Is it safer to buy CBD online or in a store?
Neither is automatically safer. Published tests have found mislabeled products bought online and in stores. What lowers your risk is a batch COA you can match, a named lab and a return policy you can read.
Can I buy CBD oil on Amazon?
As of 25 September 2026, Amazon's seller policy prohibits CBD listings on its main store, with a note that Amazon Fresh and Whole Foods Market permit certain topical CBD products. A "hemp oil" listing there is not supposed to be a CBD product.
What should I look for on a CBD product in a store?
A CBD amount in milligrams per container and per serving, a batch number or QR code linked to a COA, total THC on that report, sealed packaging and a clear return option.
Is gas station CBD bad?
Not by definition, but it is harder to verify. Intoxicating hemp products are often sold alongside it, reports can be hard to find, and returns are often not offered.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.