More From the OPMS Silver Line
Every Silver strain is batch matched to its listed alkaloid content. Compare the rest of the lineup in capsule and powder form.
Why OPMS
- A recognized name in kratom since 2010
- Known for its proprietary cold-water extraction, made without heat
- Each Silver batch is tested and blended to match its listed alkaloid profile
- Alkaloid content printed right on the package
- Third party lab tested by the manufacturer

OPMS Silver Line Red Sumatra Kratom Capsules
RED VEIN • 0.6G CAPSULES
The same Red Sumatra, portioned into capsules with no scale needed
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OPMS Silver Line Red Vein Maeng Da Kratom Capsules
RED VEIN • 0.6G CAPSULES
A classic red many save for unwinding in the evening
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OPMS Silver Line Green Vein Maeng Da Kratom Capsules
GREEN VEIN • 0.6G CAPSULES
A long time favorite green, pre measured and ready to go
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OPMS Silver Line Green Vein Malay Kratom Capsules
GREEN VEIN • 0.6G CAPSULES
A traditional Malay green for those who prefer capsules
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OPMS Silver Line Super Green Vein Borneo Kratom Powder
GREEN VEIN • POWDER
Loose Borneo leaf for those who like to measure by the gram
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OPMS Silver Line White Indo Kratom Powder
WHITE VEIN • POWDER
The white vein of the Silver line, a daytime pick
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Silver leaf powders and capsules, Gold extract capsules and the Black line, its strongest extracts
View the full lineup →OPMS Silver Line Red Sumatra Kratom Powder
✓ Third Party Lab Tested ✓ Red Vein Sumatra Leaf ✓ Batch Blended for Consistency ✓ 4oz or 16oz Pouch
OPMS Silver Red Sumatra is classic red vein kratom from mature Indonesian leaf, milled fine and packed by one of the most established names in the trade. OPMS has been part of the kratom world since 2010, and its Silver Line is where the brand keeps its straight leaf powders: no extract, no blending agents, just Sumatra red the way experienced kratom drinkers know it. Red vein is the color many people save for the evening, when the day is done and there's time for a slower cup. Choose a 4oz pouch to get acquainted or a 16oz pouch if Red Sumatra is already your house red.
What Sets Silver Red Sumatra Apart
- Pure Leaf, Nothing Added: Mitragyna speciosa leaf powder is the only ingredient
- Pouch After Pouch, the Same Red: OPMS tests each batch's alkaloid profile and blends batches to hit the content listed for this strain
- Alkaloids in Plain Sight: Mitragynine content is printed on every pack, so you know your batch before you open it
- Standard Leaf Strength: Silver is the OPMS leaf line, known in the trade as "1x", so it behaves like the plain kratom powder you already know
- Sumatra Heritage: Red vein leaf from the Indonesian island that gives this strain its name
Why People Reach For It
- An Evening Favorite: Red vein is the color customers pick for winding down the day, and Sumatra is one of the best known reds
- Your Amount, Your Scale: Powder lets you weigh exactly what you want, down to a fraction of a gram
- A Name You Recognize: OPMS is one of the most widely carried kratom brands in the country
- Mixes Your Way: Stir it into water, juice or tea, or go the classic toss and wash route
- Better Value by the Pound: The 16oz pouch is the most economical way to keep Silver Red Sumatra on hand
Pick Your Pouch
- 4oz (113g): The easy introduction. Enough to learn the strain at your own pace, in a resealable pouch that tucks into a cabinet
- 16oz (454g): The full pound for people who already know they like it. Fewer reorders, and the lowest cost per gram
Prefer to skip the scale? The same strain comes in OPMS Silver Line Red Sumatra Kratom Capsules.
Why Trust OPMS
- In Kratom Since 2010: OPMS, short for Optimized Plant Mediated Solutions, is one of the longest running brands in the category
- Cold Water Extraction: The brand is best known for its proprietary cold water process, built to keep the leaf's natural alkaloid profile intact without heat
- Three Clear Lines: Silver for leaf powders and capsules, Gold for concentrated extract capsules, Black for its strongest extracts, so you can choose by format and strength
- Batch Matched Silver Strains: Every Silver batch is profiled and blended to match the listed content for that strain
- Third Party Lab Tested: OPMS kratom is tested by an independent lab, with alkaloid content printed on the package
Why Shop With Us
- Direct Manufacturer Partnerships: We source straight from the brands we carry, so stock is factory direct
- Guaranteed Authentic: 100% genuine OPMS in original sealed packaging. With a brand this popular, that matters
- Held to AKA Standards: We choose kratom brands with American Kratom Association standards in mind, and every kratom brand we stock is third party lab tested
- Fast, Discreet Shipping: Quick, reliable processing and plain packaging on every order
- Knowledgeable Staff: Questions about strains or sizes? Reach a real person through our contact page
How to Use
- Start Low: Weigh about 1g on a digital scale. Kitchen spoons vary too much to be reliable
- Directions: Mix into water or a drink, or toss and wash it down. Wait before deciding on more
- Daily Maximum: Never more than 2g of powder in 24 hours
- Frequency: Do not use on consecutive days, and no more than 5 days per month (manufacturer limits)
- Storage: Keep sealed in a cool, dry place away from light, and reseal the pouch after each use
Frequently Asked Questions
What is OPMS Silver Red Sumatra kratom powder?
What does Silver Line mean?
How much mitragynine is in it?
How much should I start with?
How many servings are in each pouch?
Powder or capsules: which should I choose?
Is it lab tested?
What other OPMS Silver products do you carry?
What other red vein kratom powders do you carry?
How should I store the powder?
Ingredients
Ingredient: Mitragyna speciosa (kratom) leaf powder, red vein Sumatra
Other Ingredients: None listed
Per Pouch: 4oz (113g) or 16oz (454g) | about 13mg to 15.5mg mitragynine per gram depending on batch (see pack)
All OPMS kratom is third party lab tested by the manufacturer for purity and potency. View COAs here.
Warnings (click to view)
Shipping Restrictions (click to view)
FDA Disclaimer: These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.
- Product Type:
- Red vein kratom leaf powder
- Brand:
- OPMS (Silver Line)
- Package Quantity:
- 4oz (113g) or 16oz (454g) resealable pouch
- Strength:
- Standard leaf strength (Silver Line, known in the trade as 1x), not an extract
- Mitragynine Content:
- About 13mg to 15.5mg mitragynine per gram depending on batch; exact figure printed on each pack
- Alkaloid Profile:
- Each batch is profiled and blended to match the listed content for this strain
- Vein Color:
- Red
- Source Region:
- Sumatra, Indonesia
- Processing Method:
- Mature leaf milled to a fine powder, batch blended for consistency, no additives
- Ingredients:
- Mitragyna speciosa leaf powder only
- Lab Testing:
- Third party lab tested by the manufacturer for purity and potency
- Use Limits:
- Adults 21+ only. Start at about 1g on a digital scale. Max 2g in 24 hours, not on consecutive days, no more than 5 days per month (manufacturer limits)