GNC MSM 1000mg Supplement
- Msm
- Capsule
- Gelatin
- 180
A large-supply, single-ingredient MSM capsule for buyers who prefer to control their joint supplement stack separately rather than take a bundled formula.
As an Amazon Associate, ProductDome may earn a commission from qualifying purchases made through links on this page.
How it ranks among the 68 msm we track
4.6★ across 140 Amazon ratings, Bayesian-smoothed toward the category average.
140 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ 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: medium - useful but incomplete evidence.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
GNC's MSM supplement delivers 1000 mg of methylsulfonylmethane per gelatin capsule across a 180 serving bottle, sold as a single-ingredient formula for joint cartilage support rather than a combo blend.
Where many joint products bundle MSM together with glucosamine and chondroitin, this GNC version keeps it to MSM alone, which suits buyers who already take those other ingredients separately or simply want to isolate MSM. The 180 serving count makes it a longer-running bottle than most single-ingredient joint supplements.
- 1000 mg MSM per capsule
- 180 servings
- Gelatin capsule, unflavored
- GNC brand, model 156224
Who it's for
People who want MSM on its own rather than as part of a combination joint formula. It is not suitable for anyone avoiding gelatin, since the capsules use it as the supplement type.
Strengths and trade-offs
Drawn from this product's published specifications.
- 180 servings is a large supply for a single-ingredient formula
- Straightforward 1000 mg MSM dose per capsule
- Isolated ingredient for buyers who stack supplements themselves
- Gelatin capsules are not vegetarian or vegan
- Listing's benefit description is generic and offers no specific dosing guidance beyond the 1000 mg figure
Performance notes
MSM is a sulfur-containing compound commonly associated with connective tissue and joint cartilage support, which is why it appears across many joint health formulas either alone or combined with other ingredients. This GNC bottle isolates it at 1000 mg per capsule rather than blending it with anything else.
Specifications
| Brand | GNC |
|---|---|
| Model | 156224 |
| Form | Capsule |
| Supplement Type | Gelatin |
| Count | 180 |
| Benefits | Supports overall health and wellness |
| Flavor | Unflavored |
How it compares
This product against the closest alternatives we track in msm.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| GNC MSM 1000mg SupplementThis product | 4.6 / 5 | 140 | 4.0 / 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 GNC 156224
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much MSM is in each GNC capsule?
1000 mg per serving.
How many servings come in GNC's MSM supplement bottle?
180 servings.
Are GNC's MSM capsules vegetarian?
No, the listing states the supplement type is gelatin, which is not vegetarian or vegan.