MSM (MethylSulphonylMethane) Powder - 100% Edible
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- $ 22.99
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- $ 22.99
- Regular Price
- $ 22.99
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MSM Supplement Powder — OptiMSM® 99.9% Pure
Pharmaceutical-grade methylsulfonylmethane (MSM) — the only GRAS-designated MSM on the market, packaged in Madera, California and third-party tested for purity.
Ideal Applications
FEATURES
✅ OptiMSM® — The Only GRAS-Designated MSM
Greenway Biotech carries OptiMSM®, manufactured by Bergstrom Nutrition — the only MSM awarded the FDA's GRAS (Generally Recognized As Safe) designation. This is the gold standard in MSM purity and safety.
🔬 99.9% Pure Methylsulfonylmethane
Each batch is third-party tested and verified at 99.9% purity. No fillers, binders, anti-caking agents, or flow agents — just pharmaceutical-grade MSM powder.
🧪 Third-Party Tested for Purity
Independently lab tested for identity, purity, and heavy metal content every batch. Results are on file and available upon request.
🇺🇸 Packaged in Madera, California
Repackaged at our FDA-registered facility in Madera, CA under strict quality control protocols — the same facility handling all Greenway Biotech personal care and wellness products.
💊 Edible Grade — Safe for Oral Use
MSM powder is edible grade and suitable for oral supplementation. Many users dissolve it in distilled or filtered water with a natural sweetener to offset the mildly bitter taste.
⚗️ ~34% Elemental Sulfur
MSM is approximately 34% elemental sulfur by weight — making it one of the most bioavailable organic sulfur sources available as a dietary supplement.
🦴 Supports Collagen & Keratin Production
Sulfur is a critical component in the formation of collagen and keratin — the structural proteins responsible for healthy skin, hair, and nail integrity.
🛡️ Supports Glutathione Production
MSM is studied for its role in supporting the body's natural production of glutathione, one of the most important endogenous antioxidants. Many users incorporate it specifically for this reason.
🌿 Naturally Occurring Compound
MSM (methylsulfonylmethane) is a naturally occurring sulfur compound found in vertebrates, plants, and many foods. Supplementation restores levels that are often diminished through modern food processing and cooking.
📦 Available in 1 lb, 2 lb & 4 lb Sizes
Choose the size that fits your routine — from a 1 lb starter bag to a 4 lb supply for ongoing daily use. Resealable packaging keeps powder fresh between uses.
WHAT IS MSM?
What Is MSM (Methylsulfonylmethane)?
MSM — short for methylsulfonylmethane — is a naturally occurring organic sulfur compound found in all vertebrates, including humans. It is present in small amounts in fresh fruits, vegetables, grains, and animal products, but much of it is lost during cooking, processing, or storage. Supplementation is commonly used to restore levels that modern diets may not fully supply.
Despite often being described simply as a "sulfur supplement," MSM does more than donate sulfur. It actively supports sulfur metabolism and helps incorporate sulfur more efficiently throughout the body — including into proteins, connective tissue, and antioxidant pathways. Approximately 34% of its molecular weight is elemental sulfur.
Why Powder Form?
Powder allows for flexible dosing by body weight, faster dissolution, and easy incorporation into water or juice. It is also more economical per gram than capsule forms. Many users who need higher daily amounts (3–6 g) find powder significantly more practical than swallowing multiple capsules. The powder can also be loaded into empty capsules if preferred — a common workaround for those sensitive to the taste.
Why OptiMSM®?
Not all MSM is manufactured equally. OptiMSM®, produced by Bergstrom Nutrition, is the only MSM to receive the FDA's GRAS (Generally Recognized As Safe) designation — the result of extensive safety research, including long-term human clinical studies. It is produced via a proprietary distillation process that achieves 99.9% purity without the recrystallization methods that may leave residual impurities in lower-grade products.
| Active Compound | Methylsulfonylmethane (MSM) — (CH₃)₂SO₂ |
|---|---|
| Brand | OptiMSM® by Bergstrom Nutrition |
| Purity | 99.9% pure MSM |
| Sulfur Content | ~34% elemental sulfur by weight |
| Grade | Edible / Dietary Supplement Grade |
| FDA Status | GRAS Designated (Generally Recognized As Safe) |
| Form | Fine white crystalline powder |
| Taste | Mildly bitter — dissolve in water with honey or maple syrup |
| Sizes Available | 1 lb, 2 lb, 4 lb resealable bags |
| Packaged At | Madera, California (FDA-registered facility) |
| Testing | Third-party lab tested, heavy metal screened |
HOW TO USE
Basic Oral Supplementation
- Measure your dose using the body-weight guideline in the Dosage & Timing Guide below (or use the MSM Calculator).
- Dissolve the powder in 8–12 oz of distilled or filtered water. Avoid chlorinated tap water — chlorine may interfere with sulfur uptake.
- Add a small amount of honey, maple syrup, or coconut sugar to offset the mild bitterness, if desired.
- Divide your daily dose into two equal servings — one in the morning, one in the afternoon or evening. Splitting the dose supports more consistent absorption throughout the day.
- MSM may be taken with or between meals.
Loading into Capsules
- Purchase size 00 empty gelatin or vegetarian capsules (widely available online or at health food stores).
- Use a capsule-filling tray for efficiency, or fill individually by hand.
- A standard size 00 capsule holds approximately 0.5–0.7 g of MSM powder.
- For a 3 g dose, you will need approximately 5–6 size 00 capsules per serving.
Topical Application
- Mix a small amount of MSM powder with a carrier lotion, aloe vera gel, or distilled water to create a simple topical solution.
- Apply to the target area and allow to absorb. Conduct a small patch test for first use.
- Discontinue if irritation develops.
Pro Tip: Start Low, Build Gradually
Many experienced users recommend starting at 1–2 g per day for the first week, then increasing to your full body-weight dose over 2–3 weeks. This gradual approach allows your body to adjust and may reduce the likelihood of mild initial responses (temporary fatigue or loose stools) that some new users notice when jumping straight to a full dose.
When MSM Powder Is the Right Choice
- You want flexible dosing adjustable by body weight
- You need higher daily amounts (3 g or more) and want to avoid swallowing many capsules
- You are comfortable dissolving powder in water or juice
- You want the most economical per-gram cost
- You intend to use it both orally and topically
When to Consider Other Options
- You need pre-measured doses for travel or on-the-go use → MSM capsules are more portable
- You strongly dislike any bitterness and cannot easily mask the taste → capsule form may be a better fit
MSM SUPPLEMENT CALCULATOR
DOSAGE & TIMING GUIDE
MSM Dosage & Timing Guide
There is no established Recommended Daily Allowance (RDA) for MSM. Research and common supplementation practice suggest effective amounts typically range from 1.5 to 6 grams per day. The following guidelines are based on the body-weight approach reflected in OptiMSM® clinical research.
Body-Weight Dosage Reference
| Body Weight | Daily Dose | Per Serving (÷2) | Approx. Measure |
|---|---|---|---|
| 100 lbs (45 kg) | 4 g | 2 g | ½ tsp per serving |
| 125 lbs (57 kg) | 5 g | 2.5 g | ⅝ tsp per serving |
| 150 lbs (68 kg) | 6 g | 3 g | ¾ tsp per serving |
| 175 lbs (79 kg) | 7 g | 3.5 g | ~⅞ tsp per serving |
| 200 lbs (91 kg) | 8 g | 4 g | 1 tsp per serving |
Timing Recommendations
- Split into two servings: Morning and afternoon/evening — this is associated with more consistent sulfur availability and better overall absorption.
- With or without food: MSM may be taken on an empty stomach or with meals. Some users find it easier on the stomach when taken with food.
- Avoid late evening for sensitive individuals: MSM's role in supporting energy production means some users notice mild stimulating effects. If this occurs, shift the second dose to mid-afternoon.
- Consistency matters: Many users report noticeable differences only after 4–8 weeks of consistent daily use.
Water Quality Note
Always dissolve MSM in distilled, filtered, or reverse osmosis (RO) water. Chlorine in municipal tap water may interfere with sulfur absorption. This applies equally to other mineral supplements such as magnesium.
Upper Range & Side Effects
Studies examining MSM at up to 9 grams per day in healthy adults have reported a favorable safety profile. Side effects most commonly associated with higher doses or rapid dose escalation include mild intestinal discomfort, loose stools, or temporary headache. These typically resolve as the body adjusts. If they persist, reduce the dose and increase more gradually over several weeks.
COMPARE MSM FORMS
MSM Powder vs. MSM Capsules
Both forms deliver the same active compound — methylsulfonylmethane. The difference is entirely in convenience, flexibility, and cost.
| Factor | MSM Powder | MSM Capsules |
|---|---|---|
| Active Compound | Methylsulfonylmethane (same) | Methylsulfonylmethane (same) |
| Dose Flexibility | ✅ Fully adjustable by body weight | Fixed per capsule (typically 500–1,000 mg) |
| Cost Per Gram | ✅ Lower — more economical at scale | Higher — includes capsule manufacturing cost |
| Ease of Use | Requires measuring and mixing | ✅ Convenient — no preparation required |
| Taste | Mildly bitter — maskable with sweetener | ✅ No taste — fully encapsulated |
| Higher Doses (4–8 g/day) | ✅ Easy — one or two servings covers full dose | Requires swallowing 6–16 capsules for same dose |
| Topical Use | ✅ Can be mixed into lotion or gel directly | Capsule must be opened and emptied |
| Travel Convenience | Bulk bag is less portable | ✅ Pre-counted, easy to travel with |
| Absorption Speed | ✅ Dissolved powder may begin absorbing faster | Capsule shell must dissolve first |
| Best For | Daily home supplementation at body-weight doses | On-the-go use, taste-sensitive individuals, low doses |
SAFETY & HANDLING
Personal Protective Equipment (PPE)
- No special PPE required for normal handling and oral supplementation
- Avoid inhaling fine powder dust when measuring large amounts — fine powders may cause minor respiratory irritation
- Wash hands after measuring if preparing topical solutions
Storage Guidelines
- Store in a cool, dry location away from direct sunlight and humidity
- Keep in the original resealable bag or transfer to an airtight container — MSM may clump if exposed to moisture
- No refrigeration required — room temperature storage is appropriate
- Keep out of reach of children
Application Precautions
- For oral supplementation and/or topical use — not for agricultural or industrial applications
- Individuals who are pregnant or breastfeeding should consult their healthcare provider before use — sufficient safety data in these populations is not available
- Individuals taking blood-thinning medications (e.g., warfarin) should consult their physician before use
- No formal drug interactions have been documented in research, but physician consultation is always recommended when combining with prescription medications
- If you are sensitive to sulfa drugs, note that MSM is a structurally distinct organic sulfur compound — no allergic cross-reactivity has been identified in research, but consult your provider if uncertain
- Discontinue use and consult a healthcare professional if persistent adverse reactions develop
First Aid
- Eye contact: Flush with clean water for 15 minutes. Seek medical attention if irritation persists
- Skin contact: Rinse with water. Discontinue topical use if irritation develops
- Ingestion (excessive amount): Contact Poison Control (1-800-222-1222) or seek medical attention. Do not induce vomiting
- Inhalation of dust: Move to fresh air. Seek medical attention if respiratory symptoms persist
Refer to the Safety Data Sheet (SDS) for complete safety information.
COMPLETE YOUR WELLNESS ROUTINE
Magnesium & Mineral Wellness
Magnesium Oil Spray
Dead Sea USP-grade magnesium chloride spray. Many users pair MSM supplementation with topical magnesium for a complementary mineral wellness approach.
Epsom Salt
USP-grade magnesium sulfate for relaxing bath soaks. A natural pairing with MSM for those focused on muscle comfort and post-activity recovery routines.
Magnesium Chloride USP
Dead Sea USP magnesium chloride powder — use orally as a magnesium supplement or to make DIY magnesium oil. Pairs well with MSM for comprehensive mineral support.
Magnesium Cream
Ready-to-use topical magnesium cream for targeted application. A convenient complement to MSM for those focused on joint and muscle comfort.
FREQUENTLY ASKED QUESTIONS
What is OptiMSM® and why does it matter?
OptiMSM® is a branded form of methylsulfonylmethane manufactured by Bergstrom Nutrition using a proprietary distillation process. It is the only MSM to receive the FDA's GRAS (Generally Recognized As Safe) designation, based on extensive safety studies including long-term human clinical trials. Not all MSM on the market is manufactured to this standard — recrystallized MSM products may retain trace impurities. Greenway Biotech carries OptiMSM® exclusively.
How much MSM should I take per day?
A widely used starting point is 4 grams (approximately 1 teaspoon) per 100 pounds of body weight per day, divided into two equal servings. For example, someone weighing 150 pounds would typically take around 6 grams daily — 3 grams morning and 3 grams afternoon. Research suggests effective amounts generally fall between 1.5 and 6 grams per day for healthy adults. Use the MSM Calculator on this page to estimate your dose and see how long a bag will last at your usage rate. Read the full Complete Guide to MSM Powder for more detail. Consult your healthcare provider for personalized guidance.
Why should MSM be taken twice a day?
Splitting your daily dose into two servings helps maintain more consistent sulfur levels throughout the day. The digestive system can only absorb a finite amount at once, and spacing intake optimizes how much MSM is actually absorbed versus excreted. Once-daily dosing is common among those who find splitting inconvenient, though twice-daily is generally considered the more effective approach based on absorption dynamics.
Why use distilled or filtered water instead of tap water?
Chlorine in municipal tap water may interfere with sulfur uptake. Using distilled, filtered, or reverse osmosis (RO) water removes chlorine and other potential disruptors, supporting cleaner absorption. This is a widely cited recommendation among MSM practitioners and is consistent with guidance for other mineral supplements.
What does MSM taste like, and how can I make it easier to take?
MSM powder has a mildly bitter, slightly sulfurous taste that most people find easy to mask. Common approaches include dissolving it in fresh juice, adding raw honey, maple syrup, or coconut sugar to the water, or blending it into a smoothie. Those who cannot tolerate any bitterness can load the powder into empty size 00 gelatin or vegetarian capsules — each holds approximately 0.5–0.7 grams, so a 3 g dose requires about 5–6 capsules per serving.
What are the most common reasons people take MSM?
MSM is one of the most widely used dietary sulfur supplements. Common reasons include joint and connective tissue support, skin and hair health through collagen and keratin production, post-exercise muscle comfort, immune support via glutathione pathways, and general cellular detox support. Explore the research: 4 Amazing Benefits of MSM You Should Know and How Can MSM Boost Your Immune System?
Can MSM help with seasonal allergies?
Some research suggests MSM may support the body's response to environmental allergens, possibly through its role in modulating inflammatory pathways. Many people incorporate MSM as part of their seasonal wellness routine. Read more: Can MSM Help Relieve Seasonal Allergies?
Is MSM safe to take long-term?
OptiMSM® is the most extensively studied form of MSM available and has a favorable safety record in human trials. Studies have examined doses up to 9 grams per day without identifying serious adverse effects. As with any supplement, we recommend consulting your healthcare provider if you have existing health conditions, take prescription medications, or are pregnant or breastfeeding.
Who should consult a doctor before taking MSM?
The following individuals should speak with their healthcare provider before starting MSM supplementation: those who are pregnant or breastfeeding; individuals taking blood-thinning medications such as warfarin; those with kidney disease or impaired kidney function; and anyone uncertain about interactions with existing prescriptions. No formal drug interactions have been documented, but personalized guidance from a healthcare provider is always the prudent approach.
GROW WITH CONFIDENCE
Quality & Purity Standards
- OptiMSM® by Bergstrom Nutrition — the only FDA GRAS-designated MSM on the market
- 99.9% purity verified via proprietary distillation manufacturing process
- Third-party lab tested for purity and heavy metal content every batch
- Edible / dietary supplement grade — suitable for oral use
- Repackaged at our FDA-registered facility in Madera, California
- No fillers, binders, anti-caking agents, or flow agents added
Returns & Guarantee
- 90-day money-back guarantee on all Greenway Biotech products
- If you are not satisfied for any reason within 90 days of purchase, contact us and we will make it right
- See our full Returns & Shipping policy for details
Sustainability
- Resealable bags minimize packaging waste and preserve product freshness between uses
- We are actively evaluating compostable and recyclable packaging options as we expand our Madera facility operations
- Concentrated supplement format means a lower packaging-to-product ratio compared to liquid or pre-dosed alternatives
Charitable Contributions
Greenway Biotech, Inc. is committed to giving back to the communities that support us. A portion of our proceeds supports local agricultural education programs in the San Joaquin Valley and broader health and wellness initiatives. We believe access to quality supplementation and clean growing inputs should not be a luxury.
About Greenway Biotech, Inc.
Greenway Biotech, Inc. has been serving home gardeners, commercial growers, and wellness-focused customers since 1989. Originally based in Southern California, we relocated to Madera, CA — in the heart of the San Joaquin Valley — to be closer to the agricultural customers who depend on us. Our FDA-registered facility at 17861 Road 24, Madera, CA 93638 operates under strict quality protocols for both our fertilizer and personal care product lines. We are a family-owned business and take technical accuracy, regulatory compliance, and customer trust seriously in everything we do.
DOCUMENTS
DISCOVER MORE
- The Complete Guide to MSM Powder: Benefits, Usage, and Safety — Everything you need to know before and after starting supplementation
- 4 Amazing Benefits of MSM You Should Know — Skin, joints, detox, and energy: why organic sulfur matters
- How Can MSM Boost Your Immune System? — MSM's role in glutathione production and inflammatory response support
- Can MSM Help Relieve Seasonal Allergies? — What the research says about MSM and environmental allergen response
HAVE QUESTIONS?
Check out our full FAQ page or contact our experts for personalized advice.
