MSM,
does it really help with Improvement of skin wrinkles, elasticity, and hydration?
research showsThe skin-aging evidence for MSM is concentrated in one small research program involving an industry-affiliated author, supporting C. The placebo-controlled portion included only 20 participants, and the subsequent 63-person dose comparison had no placebo group. A 49-person trial of a formula containing hyaluronic acid and L-carnosine cannot isolate the effect of MSM.
ads claimMarketing uses phrases such as edible Botox, collagen synthesis, wrinkle erasure, and hydration from within. The actual placebo-controlled single-ingredient evidence centers on a 20-person pilot, while marketed skin products often combine MSM with vitamin C, copper, collagen, or hyaluronic acid.
Useful facts when choosing a product
- In Korea, MSM health functional foods are mainly marketed for joint and cartilage health, with a monograph intake of 1.5-2.0 g/day. This is not recognition or proof of a skin benefit.
- The single-ingredient skin study used 1-3 g/day for 16 weeks, whereas the combination trial used 400 mg/day of MSM for 60 days.
- Korean inner-beauty products may combine vitamin C, copper, collagen, and hyaluronic acid, making their composition different from the study products.
- Gastrointestinal discomfort, headache, or allergy should be monitored during oral use, and long-term high-dose safety in pregnancy and lactation is not established.
What the research actually shows
Part I of the 2022 study by Muizzuddin and Benjamin assigned 20 participants to MSM at 3 g/day or placebo for 16 weeks and reported improvement in wrinkles and roughness. Part II included 63 participants taking 1 g or 3 g/day but lacked a placebo group, permitting only baseline and dose comparisons. The 2019 Guaitolini trial gave a final sample of 49 participants a combination of 200 mg hyaluronic acid, 500 mg L-carnosine, and 400 mg MSM or placebo for 60 days and reported improvements in hydration, elasticity, and some periocular wrinkles, but component contributions were not separable. Joint-pain studies were not used as evidence for this skin claim.
Why this is classified as C (42)
Human signals support C rather than D. However, the placebo-controlled sample for MSM alone was 20, while the remaining evidence came from a non-placebo dose comparison or a combination product and included industry affiliation, placing the score at the lower end of C with 42 points.
Counterpoint. Instrument-measured signals at 1-3 g/day justify independent replication. This verdict evaluates skin aging rather than the separate joint claim.
Rejudgment record. New verdict — The placebo-controlled skin trial of MSM alone enrolled 20 participants, the follow-up lacked placebo, and combination-product and industry-link limitations cap the rating at C
Cross-check — Codex and Claude
Evidence Table
| Study | Design | Sample | Funding | Endpoint | Result | Weight |
|---|---|---|---|---|---|---|
| Muizzuddin N, Benjamin R. 2022 | Placebo-controlled pilot plus a dose comparison without placebo | 63 | One author was employed by an MSM ingredient company | Facial wrinkles, roughness, elasticity, and hydration | The 20-person placebo comparison showed a positive signal at 3 g/day, while the 63-person portion reported baseline changes with 1 g and 3 g but had no placebo group. | Key |
| Guaitolini E et al. 2019 | Randomized single-blind placebo-controlled combination-product trial | 49 | Explicit study funding not stated | Skin hydration, elasticity, sebum, and wrinkles | The hyaluronic acid, L-carnosine, and MSM combination improved hydration, elasticity, and some periocular wrinkles, but the effect of MSM alone was not isolated. | Supportive |
Receipt — 2 References
All 2 cited sources were verified for existence at the original page (as of 2026-07-18).
Reviewed and approved: Chamgap Editorial Team · Approval date: 2026-07-18 · Corrections: none
Cite this verdict
[Chamgap] MSM (methylsulfonylmethane) x skin wrinkles, elasticity, and hydration — Evidence Grade C·42. 2 cited sources checked. Source: https://chamgap.com/en/verdicts/skin-hair/msm-skin-wrinkles-elasticity-hydration/ · CC BY 4.0CC BY 4.0 — free to use with attribution; do not distort grades, numbers, or verdict meaning.
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