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Source Naturals, MSM, 1000 mg, 120 Tablets

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$7.75 (50)
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In Stock
  • Expiration Date: May 2020
  • Shipping Weight: 0.47 lbs (0.21 kg)
  • Product Code: SNS-01289
  • UPC Code: 021078012894
  • Package Quantity: 120 Tablets
  • Dimensions: 2.4 x 2.4 x 4.4 in, 0.4 lbs (0.18 kg)
Product Overview


  • (Methylsulfonylmethane)
  • Dietary Sulfur Supplement
  • OptiMSM

MSM serves as an important source of bioavailable dietary sulfur, an element that plays a critical role in maintaining the integrity and elasticity of connective and other tissues. It is an important component of proteins found throughout the body, such as in hair, nails, skin and tendons. Vitamin C is necessary for the formation of connective tissue, amino acid metabolism, and hormone synthesis and serves as a key factor in the body’s immune system. Molybdenum is a trace element that is needed by the body for sulfur metabolism, oxygen transport, and detoxification.

Suggested Use

2 to 3 tablets daily

Other Ingredients

Sorbitol, stearic acid, modified cellulose gum, silica, and magnesium stearate

Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


Store in a cool, dry place

Not for use by women who are pregnant, may become pregnant, or breastfeeding.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 2 Tablets
Servings Per Container: 60
  Amount Per Serving %DV
Vitamin C (as ascorbic acid) 250 mg 417%
Molybdenum (as molybdenum chelate) 160 mcg 213%
Methylsulfonylmethane (OptiMSM) 2 g
†Daily Value not established.
iHerb Customer Reviews

Excellent product ... if you don't react

Posted by chriswillisau on Oct 09, 2016

Oh no!!! I started using these for chronic shoulder pain and I was amazed it took the edge off so I immediately placed an iHern order for more! That's 240 tablets ... but ... The day after I broke out in spots. I thought I had chicken pox, but it seems some people react to the sulfa. I was very disappointed because I've tried numerous things to take the edge off pain. This was the first product that showed promise. Now I'm stuck with 240 tablets - you have to laugh! The reaction has been with me for a week or two. When it's completely gone I'm going to try small amounts and build up to see at what point the reaction starts. It's only a skin reaction. No other issues are known, but super itchy. I therefore had to give this product 3 stars in my experience. However, if I didn't react, this product would be on my favourite product list with five stars.

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Good price

Posted by 4777886422314351010 on Aug 24, 2016

Good price

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Source Naturals MSM

Posted by 4886195747340075294 on Aug 05, 2016

This is my favorite MSM. I like how it has vitamin C and Molybdenum added.

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Product is fine

Posted by 5139071223734634302 on Jun 11, 2016

Can't tell you how it works as I cannot registrate anything after using it in a couple of months.

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the only One to Buy

Posted by Reviewer1344878 on May 22, 2015

the dogs get the powder but I take the tablets. it is the best MSM. I am really impressed with Source Naturals projects. keep on giving us the best, iHerb......

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