Category: Kratom Basics

7-OH and kratom-derived products are legal in most US states, but laws change quickly. This page summarizes the current state-by-state picture.

Generally legal states

Most US states allow the sale and possession of 7-OH and kratom products to adults 21+. This includes the majority of the Northeast, Midwest, South and West Coast.

Restricted states

A handful of states and municipalities have specific restrictions or bans. NUMBZ automatically blocks restricted ZIP codes at checkout.

How to check your state

Before ordering, check the FAQ for the latest state list and any pending legislation. You can also email us with your ZIP code.

International

NUMBZ currently ships to the United States only. Laws vary widely by country.

Disclaimer

This article is informational and not legal advice. Consult local authorities for the most current guidance.

Understanding how long 7-OH stays in your system helps you plan serving schedules, travel and any drug-test considerations.

Typical timeline

7-OH typically has a gradual onset (30–60 minutes), peaks within 1–2 hours, and tapers over several hours. Most users feel effects for 4–6 hours.

Half-life

The half-life of 7-hydroxymitragynine is not as well-documented as that of common compounds. Based on user reports, the body clears most of it within 24–48 hours.

Drug testing

Standard drug panels do not screen for 7-OH. Specialized panels may detect it but are uncommon. Check with your employer or test administrator if concerned.

Building tolerance

Like many active compounds, regular use can build tolerance. Most users cycle their servings or take regular breaks to maintain sensitivity.

Many buyers ask whether 7-OH tablets are addictive. This article gives a balanced, evidence-based overview.

What we know

7-OH has been the subject of growing research. Like any active compound, regular use can build tolerance. Some users experience mild withdrawal symptoms after long periods of frequent use.

Risk factors

Higher doses, more frequent use, and combining with other substances increase risk. Lower doses and moderate use reduce risk.

How to reduce risk

• Use the lowest effective dose.
• Take regular breaks.
• Do not mix with alcohol or other substances.
• Track your use honestly.

NUMBZ position

NUMBZ sells 7-OH products to adults 21+ who use them responsibly. We do not market to minors, encourage daily use, or make health claims. Read our Terms.

Kratom contains over 40 identified alkaloids. This beginner’s guide covers the most important ones — what they are, what they do, and why they matter.

Mitragynine (MIT)

The most abundant alkaloid in raw leaf. About 1–2% of dry weight in mature leaves.

7-Hydroxymitragynine (7-OH)

A downstream oxidation product of MIT. Present only in trace amounts in raw leaf but much more pharmacologically active.

Speciogynine

A smooth-muscle relaxant alkaloid present in smaller amounts.

Paynantheine

Another minor alkaloid that contributes to the plant’s overall profile.

Speciociliatine

A trace alkaloid similar in structure to MIT.

Why does this matter?

Pure 7-OH extracts deliver one specific alkaloid at a high dose. Whole-plant or 7-OH + MIT products deliver a broader alkaloid profile. Both formats have their place — read more.

Kratom is often sold by strain color — red, green, white and sometimes yellow. This guide explains what the colors mean and whether they matter for 7-OH products.

Red strains

Traditionally associated with relaxing effects. Red Bali, Red Maeng Da and Red Borneo are popular names.

Green strains

Middle-of-the-road — often described as balanced. Green Malay and Green Thai are common.

White strains

Traditionally associated with more energizing effects. White Borneo and White Indo are popular.

Yellow strains

A newer category, often a blend or a specific fermentation process.

Do colors matter for 7-OH tablets?

For refined 7-OH extracts, strain color is largely irrelevant — the alkaloid has been isolated and standardized. For raw leaf or full-spectrum products, the color can be a useful shorthand.

Kratom has a rich traditional history in Southeast Asia that goes back centuries. This article covers the cultural origins, traditional preparation methods and the modern path to global markets.

Traditional origins

Kratom leaves were traditionally chewed by laborers in Thailand and Malaysia for stamina during long workdays. The plant was valued for both its energizing and relaxing properties depending on the dose.

Cultural significance

Kratom was woven into the daily life of rural communities — used in social settings, in folk medicine and in religious rituals.

Regulation shifts

In the early 20th century, several Southeast Asian countries began regulating kratom. Thailand criminalized it in 1943, then decriminalized it again in 2021.

Modern global market

By the 2000s, kratom and kratom-derived products — including 7-OH — had become a global industry. Modern chewable tablets are the latest evolution.

This is one of the most common questions from new buyers. Short answer: no. Kratom is the plant; 7-OH is one of its alkaloids. Here is a fuller explanation.

The plant

Kratom (Mitragyna speciosa) is a tree. The leaf contains dozens of alkaloids, fiber, water and other plant material.

The extract

7-OH is a specific alkaloid isolated from the leaf. Modern extracts deliver just the alkaloid, in a much more concentrated form.

The product

A 7-OH tablet contains a measured dose of the extract, blended with a flavor system, pressed into a chewable tablet. Browse the format.

What about MIT?

Mitragynine (MIT) is the most abundant alkaloid in raw leaf. Many products combine 7-OH and MIT for a more traditional profile — see 7-OH + MIT blends.

Mitragynine (MIT) and 7-hydroxymitragynine (7-OH) are the two most studied alkaloids in kratom. They sound similar but behave very differently. This guide explains how.

Mitragynine (MIT)

The most abundant alkaloid in raw kratom leaf (typically 1–2% by weight). It is the primary active compound in traditional kratom products.

7-Hydroxymitragynine (7-OH)

A downstream oxidation product of mitragynine. Present only in trace amounts in raw leaf (about 0.01–0.05%), but pharmacologically much more active. Refined 7-OH extracts deliver a much higher concentration.

How they interact

In raw leaf, MIT and 7-OH work together. Refined 7-OH extracts isolate the more active compound; 7-OH + MIT blends combine both.

Which is better?

Neither is “better” — it depends on what you want. Pure 7-OH gives a single-alkaloid experience. 7-OH + MIT blends offer a more traditional, full-spectrum profile. NUMBZ sells both.

Modern 7-OH tablets are only as good as the extract they are made from. This guide explains the extraction process from raw kratom leaf to a chewable tablet.

Step 1 — Sourcing

Quality 7-OH starts with quality kratom leaf. Reputable vendors source from Southeast Asian growers with consistent cultivars.

Step 2 — Extraction

The leaf is processed to concentrate the 7-OH alkaloid. Multiple extraction methods exist — chromatography, solvent extraction, and other proprietary techniques. The goal is a clean, standardized extract.

Step 3 — Standardization

The extract is tested and adjusted so every batch contains the labeled amount of 7-OH. This is the key to consistent per-tablet potency.

Step 4 — Tablet formulation

The standardized extract is blended with a flavor system and pressed into chewable tablets.

Step 5 — Lab verification

Every batch is third-party tested. Request a COA for your NUMBZ batch.

Kratom (Mitragyna speciosa) is a tropical evergreen tree native to Southeast Asia. Its leaves have been used traditionally for centuries. This beginner’s guide explains what kratom is, how it is used, and how modern extracts like 7-hydroxymitragynine (7-OH) fit in.

Origin

Kratom grows in Thailand, Indonesia, Malaysia, Myanmar and Papua New Guinea. Different regions produce different alkaloid profiles, which is why some kratom is more relaxing and some more stimulating.

Alkaloids

Kratom leaves contain over 40 alkaloids, with mitragynine and 7-hydroxymitragynine being the most studied.

Traditional use

For centuries, Southeast Asian workers chewed fresh kratom leaves or brewed them into tea. The effects varied by strain, dose and individual.

Modern formats

Today, kratom is sold as raw leaf, powder, capsules, extracts and chewable tablets. 7-OH tablets are the most modern and consistent format.

Is kratom legal?

Kratom and 7-OH products are legal in most US states. Check our FAQ for state-by-state guidance.