Klean Magnesium has a clean, interpretable label and exact NSF product records. The audit does not assume that taking magnesium improves sleep, recovery or performance in people who are already adequate. Product quality and evidence of need are different questions.
Score breakdown
| Area | Finding | Score |
|---|---|---|
| Formulation | Simple glycinate form and modest capsule dose | 21 / 25 |
| Transparency | Elemental amount and form disclosed | 19 / 20 |
| Laboratory verification | Exact NSF directory entries | 20 / 20 |
| Safety | Dose visible; health context still important | 12 / 15 |
| Company reliability | Strong product documentation | 8 / 10 |
| Value | Premium for a common mineral | 4 / 10 |
Formula and label
Each capsule provides 120 mg elemental magnesium as glycinate. The modest unit dose allows flexibility, but the brand’s suggested range can multiply total intake. Users must count other supplements and fortified foods rather than treating “more” as safer or more effective.
Laboratory and certification trail
Klean Magnesium appears in the NSF Certified for Sport directory, and the published label carries the mark. This is strong product-identity and sport-risk evidence. It does not diagnose deficiency or prove a recovery outcome.
Company accountability
Klean uses the same named external programme across its line and publishes downloadable product information. Those practices support accountability; professional-team usage does not affect the score.
Where this fits
Most defensible where a professional or dietary assessment identifies a gap. It is a weak purchase if the only rationale is a vague promise of deeper sleep or faster recovery.
Limits and update trigger
Not a treatment for cramps, insomnia or deficiency. Kidney disease, medication and total supplemental intake can materially change safety.
Evidence register
Source rule: Manufacturer pages establish the current label and company claims. Independent directories establish only the certification, product, region and batches they actually list. Popularity, awards and affiliate economics add zero points.
Official product page
No retailer or affiliate relationship is active on this page. Price, formula, serving size and certification can differ by country and variant.
Check the manufacturer page ↗