Buy kratom online. Lab-tested kratom powder, capsules, extracts, and live plants — by the ounce or in bulk.
mitragyna speciosa
Red, green, white, yellow, and specialty house blends, 16 strains in all. Our kratom is lab-tested for heavy metals, microbial load, and alkaloid content, then shipped within 24 hours of your order.
heavy metals
Heavy-metal tested kratom.
Our kratom is screened for lead, arsenic, cadmium, and mercury against FDA action levels.
microbial
Full pathogen screen on our kratom.
Total plate count, yeast and mold, salmonella, E. coli — screened before any kratom goes on the shelf.
alkaloid content
Kratom alkaloids quantified.
Mitragynine and 7-hydroxymitragynine, quantified on our kratom lab panel. Request the COA for any product you've ordered.
about kratom
What is kratom?
Kratom is the dried, ground leaf of Mitragyna speciosa, a tropical evergreen tree native to Southeast Asia. The leaves contain a family of alkaloids — mitragynine and 7-hydroxy-mitragynine being the two best-studied — that have made kratom a traditional botanical for centuries in Indonesia, Malaysia, Thailand, and Papua New Guinea.
The tree itself is a member of the coffee family (Rubiaceae). Commercial kratom is made the old-fashioned way: mature leaves are hand-harvested, de-stemmed, dried, and milled into a fine powder. Almost everything that distinguishes one kratom product from another, the vein color, the strain name, the grind, comes down to when the leaf was picked and how it was dried.
Red, green, and white vein kratom — what's the difference?
The vein color refers to the color of the leaf's central vein at harvest, which corresponds loosely to the leaf's maturity. The same tree can produce all three depending on when the leaf is picked and how it's dried.
- Red vein — the most mature leaves, typically dried the longest.
- Green vein — harvested mid-maturity, between red and white; often the everyday pick.
- White vein — younger leaves, often dried indoors away from light.
- Specialty / yellow — usually a blend or an extended-drying technique. Each shop's specialty is its own thing.
Kratom strains: Maeng Da, Bali, Hulu, Sumatra
Strain names refer to the region of origin or the cultivar lineage, not the alkaloid profile directly. Maeng Da ("pimp grade" in Thai) is a marketing term that's come to mean a high-alkaloid select. Bali, Sumatra, Malay, and Hulu Kapuas all reference geographic origin.
We don't claim that any one strain is "stronger" or "better" — alkaloid content varies batch to batch. That's why we lab-test our kratom and post the report on request.
How kratom strain naming actually works
Put the two systems together and you can read almost any kratom label. The first word is usually the vein color (red, green, white). The second is the origin or lineage: Bali, Malay, Sumatra, Hulu Kapuas, Thai. So a Red Bali is mature, longer-dried leaf in the Bali style, and a Green Hulu is mid-maturity leaf from the Kapuas Hulu river region of Borneo. A strain name tells you two things, what the leaf looked like at harvest and where or how it was grown. That's all it tells you.
What a name does not describe is an outcome. There's no governing body making sure one vendor's Red Bali matches another's, and alkaloid content shifts with soil, season, and drying technique even within a single region. Two bags with identical names can be very different leaf. That's why the batch matters more than the name, and why a good vendor should be able to tell you something concrete about the specific lot you're buying.
What our kratom lab panel screens for
"Lab tested" gets stamped on a lot of kratom without much behind it, so here is specifically what our panel covers:
- Identity and potency: confirms the material is genuine Mitragyna speciosa and quantifies the mitragynine and 7-hydroxymitragynine content.
- Heavy metals: lead, arsenic, cadmium, and mercury, measured against FDA action levels.
- Microbial contamination: total plate count, yeast and mold, salmonella, and E. coli.
Testing is performed by third-party, ISO/IEC 17025 accredited laboratories, not by us in-house, which is the arrangement you should want. Certificates of analysis are available on request: request a COA and we'll send the lab report for your product.
Kratom grind and packaging: what to look for
You can learn a lot about kratom before a lab ever sees it. Well-processed powder is milled fine and consistent, with an even color and no visible chunks of stem or vein (stem and vein material bulks up weight but isn't leaf). It should smell green and planty, never musty; a damp or sour smell suggests the leaf wasn't dried properly, which is exactly the condition that lets mold take hold.
Packaging matters just as much, from any vendor. Look for a sealed, light-blocking bag with a clear product name and a lot or batch identifier printed on it. That little lot code is what lets a COA be matched to the actual bag in your hand; without it, a lab report is just a nice PDF. We sift and package our kratom in-house at our Portland shop and label it by hand.
Where to buy kratom: how to vet any vendor
There is a great deal of kratom for sale online, and almost none of it comes with a lab report attached. So the real question isn't where to buy kratom — it's who will show you their work. We'd rather you buy from a careful competitor than a careless anybody. Wherever you shop (including here), ask these questions before you order:
- Can you show me a COA? The answer should be yes, quickly, from a third-party accredited lab, and the report should be recent and reference a lot number you can match to your product.
- Where does the kratom come from? A vendor should be able to name the country and region of origin and describe how the leaf gets from grower to shelf. Vague answers usually mean a reseller who has never seen the supply chain.
- Do you verify age? Responsible vendors enforce an age minimum at purchase (we require 21+). A shop that will sell to anyone with a card isn't running the rest of its business carefully either.
- What food-safety practices do you follow? Ask about HACCP food-safety protocols, and whether any certification body (like a state department of agriculture) has actually inspected them.
- How do you handle state restrictions? Kratom is banned in a handful of states. A vendor willing to ship there anyway is telling you how they treat the rules in general.
How we source & test our kratom
Our kratom comes through our Portland shop and is tested for heavy metals, microbial contamination, and alkaloid content (mitragynine + 7-hydroxy-mitragynine). We're certified by the Oregon Department of Agriculture and follow HACCP food-safety protocols. Certificates of analysis are available on request — ask us and we'll send the lab report for your product.
A note on kratom use
We sell kratom for educational and research purposes only. The FDA has not evaluated kratom for any therapeutic use, and we can't legally make health claims. Do your own research, talk to a healthcare practitioner, and never combine with other substances without medical guidance. Must be 21+ to purchase.
concentrates
Kratom extracts
A kratom extract is concentrated Mitragyna speciosa: dried leaf reduced down so that a small amount of extract carries the alkaloids of a much larger amount of leaf. That's why extracts are measured in grams and sold in small jars while powder is sold by the ounce and kilo. We carry two extract tiers. Gold Reserve kratom extract is our mid-tier, with a stated 8.69% mitragynine concentration, and Black Reserve kratom extract is our strongest at 16% total alkaloids. Both are sold in 1 g and 10 g sizes. If you want a liquid format instead, the Basic Plant kratom shot is a ready-bottled liquid standardized to a fixed alkaloid content per bottle.
capsules
Kratom capsules
Kratom capsules are not a different product, they're a different package. Our capsules are pre-filled with the same milled leaf we sell as loose powder; the material is identical in both formats. Capsules cost a little more per ounce for the filling work, and powder gives you the better bulk price, so it comes down to convenience versus economy. Most of our strains come in both formats, including Green Maeng Da capsules, Red Bali capsules, and White Maeng Da capsules. Prefer to fill your own? We also carry empty gelatin and vegetable capsules and capsule-filling machines in our accessories section.
shipping
Where we ship kratom
Kratom is legal in most of the United States, and we ship it to every state where it's allowed. A handful of states ban it outright, and our checkout enforces that list automatically, so a restricted address gets flagged before you can pay. As of 2026-07-09, we cannot ship kratom to these 10 states:
- Alabama
- Arkansas
- California
- Connecticut
- Indiana
- Kansas
- Louisiana
- Tennessee
- Vermont
- Wisconsin
One partial exception: due to Oregon state regulations, we can't ship Red Vein and Green Vein kratom to Oregon addresses. Our white vein, yellow vein, and specialty kratom ship to Oregon without issue.
A few cities and counties also restrict kratom even though their state allows it, currently in Colorado, Florida, Idaho, Illinois, Massachusetts, Mississippi, New Hampshire. Checkout blocks the banned cities we can verify from your address; county-level rules are worth double-checking yourself. The full list of localities lives on our shipping restrictions page.
kratom faq
Kratom FAQ
Is kratom legal where I live?
How is your kratom tested?
Can I get a certificate of analysis (COA) for my kratom?
What's the difference between red, green, and white vein kratom?
What does "Maeng Da" mean?
How should I store kratom?
Is it legal to buy kratom online?
Which states can't you ship kratom to?
How fast do you ship kratom?
Do you sell kratom in bulk?
How do I buy kratom online from Herb Stomp?
Where can I buy kratom near me?
kratom guides
Kratom guides from our blog
kratom near me
Kratom near me: visit our Portland shop
If you're searching for kratom near me anywhere in the Portland metro, this is it. Our shop at 5700 NE Sandy Blvd, Portland, OR 97213 is open Monday to Friday, 10am–7pm, and Saturday, 12pm–7pm. It stocks every strain on this page, and we've been in Portland for 14 years (more on the about page). You can buy kratom near me off the same shelf we pack online orders from.
Outside Portland, the best kratom store near me is usually the one that ships fastest. Orders leave the shop within 24 hours via USPS or UPS, anywhere kratom is legal, so a search for stores with kratom near me often ends better with a tracking number than a drive. Full details on our shipping page.
What kratom buyers say about our shop
4.8 stars across 284 Google reviewsHoly moley. Kratom saved my life around 8 years ago. With severe chronic pain, the doctors had doped me up RX opiates for years. When I lost my insurance.. The inevitable happened, as it does for far too many. My life was destroyed very quickly, mostly by my own hand. Lost, hopeless, scared, angry... I finally found…
Herb Stomp (Sandy) is BY FAR the best Herb and Kratom store I have ever been to. In my 2.5 years of using Kratom, I have never been to a place as helpful as this! The employees are so so helpful! Usually when buying Kratom, I’m met with grumpy head shop owners who seem to want me to either spend out of my budget, or…
I moved this month from NW Portland to SE and have dealt with stores that sell kratom in many states across the U.S. and online for the last couple of years. I found the prices of kratom at Herb Stomp to be about 1/3 of the price and ~4x the amount of which I had been paying! The store offered $2 sample bags which I…