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White VeinKorthals' Collection No. 431 White Sumatra kratom capsules, 10 capsule bag
Korthals' Collection

No 431 White Sumatra Kratom Capsules

★ 5.0 · 1 reviews

White Sumatra kratom leaf in pre-measured capsules, for later in the day.

$ 100.00Lab tested
  • No. 431 White Sumatra from Korthals' Collection, a White Vein strain
  • Leaf powder already portioned into capsules, so there is nothing to weigh
  • Five bag sizes: 10, 30, 90, 180 or 360 capsules

Serving guideEveryday2 capsules

Start with two capsules and water, then give it at least an hour before you decide on more.

Serving guide only, not a product option. Start low and wait at least an hour before taking more.

Sizes marked Sold out may be available for in-store pickup. Find a store.

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Secure checkout 3rd-party lab tested

Like caffeine and sugar, kratom may be habit-forming. Use kratom responsibly and only as directed. Must be 21+ to purchase.

Overview

Korthals' Collection No. 431 White Sumatra is a White Vein kratom in pre-measured capsules. Known for its potential for calm and mood elevation, it is a fit for unwinding in the evening. The 10 capsule bag is an easy way to try it first.

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★ 5.0 · 1 reviews
Secure checkout 3rd-party lab tested
What to expect

Taking kratom capsules

How it feels

Many people describe kratom as a smooth, functional shift in how they feel. How much you take shapes the experience, and everyone responds a little differently, so let your first serving be your guide.

Give it time

Everyone responds differently, so there is no set timeline. With capsules, wait at least an hour before taking more.

How to start

Start with 2 capsules with water and wait at least an hour before taking more. Each capsule is pre-measured, so counting capsules keeps your serving consistent.

Good to know

  • Do not combine kratom with alcohol.
  • Use caution when driving or operating machinery until you know how kratom affects you.
  • Talk to a physician before use if you are pregnant, nursing, managing a medical condition or taking medication.
  • Some drug tests can detect kratom.

Must be 21+ to purchase. Like caffeine and sugar, kratom may be habit-forming. Use kratom responsibly and only as directed.

Serving guide

Find your serving

2 capsulesStart Low
4 capsulesStandard
6 capsulesExperienced

Like caffeine and sugar, kratom may be habit-forming. Use kratom responsibly and only as directed.

What's inside

Honest ingredients

White Sumatra is kratom leaf: the dried, milled leaf of the Mitragyna speciosa tree, portioned into capsules. Of the leaf's natural alkaloids, mitragynine is the most abundant.

How

How Does It Work?

No. 431 is White Sumatra leaf powder inside a capsule: nothing to weigh and nothing to stir. Take two with water and give them at least an hour before you think about more. Kratom affects everyone a little differently, so your first serving is the most useful guide to the next.

When

When Do I Use It?

Many people choose White Sumatra for later in the day, when the work is done and they are unwinding in the evening. A bag of capsules keeps it simple at home or away, with no powder to measure.

Kratom Strain

Choose your strain

Prefer powder? Shop No 131 White Sumatra Kratom Powder

Good to know

Questions, answered

Where does White Sumatra fit among our kratom strains?

We line up kratom strains as White, Aged, Mixed, Green, Yellow, Orange and Red. No. 431 White Sumatra carries a White Vein label, at the start of that line, and many people choose it for later in the day.

How many White Sumatra capsules should I take the first time?

Two capsules with water is the first serving. Give it at least an hour before deciding on more; four capsules is the middle of the range and six is the top. Never take more than you planned. Like caffeine and sugar, kratom may be habit-forming. Use kratom responsibly and only as directed.

Which size is right for a first try?

Start with the 10 capsule bag: five 2-capsule servings, enough to learn how White Sumatra suits you. If it becomes a regular, the larger bags cost less per capsule. Subscriptions deliver every 7, 14 or 30 days.

Is No. 431 White Sumatra lab tested?

Yes, as part of our white kratom testing. Murray-Brown Laboratories, an independent lab, tested a sample described as Korthals White Kratom for its alkaloid content; the certificate is dated December 2025. Our Test Results page lists that same certificate for several strains, including White Sumatra, so it is not a test of No. 431 alone. It is also linked on this page.

How should White Sumatra capsules be stored?

Seal the bag after each use and keep it somewhere cool and dry, out of direct sunlight. Store it out of reach of children and pets.

What is kratom?

Kratom comes from the leaves of the Mitragyna speciosa tree, native to Southeast Asia, where it has been part of daily life for centuries. The leaf is dried and milled into powder, then packed into capsules, brewed, or made into extracts. Its natural leaf compounds are called alkaloids, and mitragynine is the most abundant one.

How much kratom should I take?

There is no single answer, because everyone responds differently. Start with the lowest serving on the product page and give it time before deciding on more. Smaller servings are commonly chosen for a lift and larger servings for winding down. A small kitchen scale helps if you are using powder. Like caffeine and sugar, kratom may be habit-forming. Use kratom responsibly and only as directed.

How long should I wait before taking more?

Everyone responds differently, so there is no set timeline. Start with the lowest serving on the product page and give it time before taking more: at least an hour for capsules, and at least 30 minutes for other formats.

Can you ship kratom to my state?

We cannot ship kratom to Tennessee. Kratom is also restricted in a handful of other states and in some counties and cities. Our checkout will flag an address we are not able to ship kratom to, and the current list of restricted areas is in our site footer. If you are in a restricted area, our stores and our non-kratom selection are still open to you.

Can I pick it up in store?

Many kratom items are available for in-store pickup, and shelf selection can differ from what is online. Choose the pickup option on this page or at checkout to see which nearby locations have it in stock.

Free Shipping Over $100

Free shipping on orders over $100, exclusions apply. In-store pickup and local delivery at CBD Kratom stores.

Lab-Tested Quality

Independent lab results from Murray-Brown Laboratories are linked on this page.

Subscriptions Available

Subscribe and save on deliveries every 7, 14 or 30 days. Change or cancel anytime from your account.

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No. 431 White Sumatra Capsules$ 100.00