Life Extension MSM, 1000 mg, methylsulfonylmethane, Supports Healthy Joints, antioxidant…
- Msm
- Capsule
- Methylsulfonylmethane (MSM)
- 100
- More reviewed than 66%
A straightforward single-ingredient MSM capsule at a solid 1000mg dose, reasonable for those wanting to isolate MSM rather than take it in a blend.
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How it ranks among the 68 msm we track
4.6★ across 831 Amazon ratings, Bayesian-smoothed toward the category average.
831 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
500+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 68 msm we track - how the scorecard works · full msm data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
Life Extension's MSM (methylsulfonylmethane) supplement provides 1000mg per capsule, 100 capsules per bottle, marketed for joint health and antioxidant support. It's gluten free and non-GMO.
MSM is a sulfur compound often taken alongside other joint-support ingredients, though here it's offered on its own. Life Extension positions it around inhibiting oxidative stress and preserving joint mobility, per the listed benefits.
- 1000mg MSM per serving
- 100 capsules
- Gluten free
- Non-GMO
Who it's for
Fits people already using or curious about MSM specifically for joint support, rather than a broader joint formula with glucosamine or turmeric added. Not the choice for anyone wanting a multi-ingredient joint blend in one capsule.
Strengths and trade-offs
Drawn from this product's published specifications.
- 1000mg MSM per capsule
- Gluten free and non-GMO
- Single ingredient, no added blend
- No absorption enhancers or co-ingredients included
Performance notes
At 1000mg per capsule, the dose lines up with common MSM supplementation levels, and the listed benefits center on oxidative stress and joint mobility. The capsules are gluten free with no allergens noted.
Specifications
| Brand | Life |
|---|---|
| Model | 00451 |
| Form | Capsule |
| Supplement Type | Methylsulfonylmethane (MSM) |
| Count | 100 |
| Benefits | Helps inhibit oxidative stress, Preserves joint mobility & function |
| Flavor | Unflavored |
| Diet | Gluten Free |
| Allergens | Gluten Free |
How it compares
This product against the closest alternatives we track in msm.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Life Extension MSM, 1000 mg, methylsulfonylmethane, Supports Healthy Joints, antioxidant…This product | 4.6 / 5 | 831 | 4.3 / 5 |
| Arazo Nutrition Glucosamine Chondroitin Turmeric Msm BoswelliaArazo | 4.4 / 5 | 34,800 | 4.5 / 5 |
| Doctor's Best MSM Powder Supplement for Men & WomenDoctor's | 4.5 / 5 | 17,000 | 4.5 / 5 |
| NOW Supplements, MSM (Methylsulfonylmethane) 1,000 mg, Joint Health*, 240 Veg CapsulesNow | 4.6 / 5 | 5,900 | 4.5 / 5 |
| Organic Sulfur CrystalsORGANIC | 4.5 / 5 | 5,900 | 4.4 / 5 |
Similar msm from other brands
Questions about the Life 00451
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much MSM is in each capsule?
1000mg per serving.
How many capsules come in the bottle?
100.
Is it gluten free?
Yes, listed as gluten free and non-GMO.