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ReMag magnesium: current label and the historical FDA warning

ReMag is a magnesium chloride supplement. Its formulation, your health circumstances and the meaning of an FDA warning should be evaluated separately.

Read the evidence ↓

Supplement Science Insights Editorial Team

Published September 23, 2026

Read the elemental magnesium amount

The inspected manufacturer page lists 150 mg magnesium from magnesium chloride per serving, with water as another ingredient. Count the elemental magnesium along with other products. Terms about particle size or absorption do not eliminate the usual concerns about excess intake or impaired kidney function. [1][2]

The 2017 letter concerned disease claims

FDA’s June 27, 2017 letter to New Capstone named ReMag among products marketed with claims that established intended drug uses. That historical letter is not, by itself, a current recall, a test of every bottle or evidence that a particular user has been poisoned. It also is not evidence of approved disease treatment. [3]

Assess suitability without relying on a marketing promise

Imagine choosing the liquid because it is described as highly absorbed. Review the actual serving, kidney function and medicines rather than assuming absorption language guarantees safety or benefit. This overview has not independently tested the product or established its present regulatory status from the historical letter. [2][4]

Hypothetical example — recognize the appropriate next step
SituationResponse
150 mg per servingCount the elemental amount
2017 warning letterHistorical disease-claim enforcement
Safety for youDepends on dose and clinical context
ReMag magnesium: current label and the historical FDA warning — original article outline diagram
Original editorial diagram of this article’s sections; no product photograph or clinical finding is depicted.

Sources for this article

  1. ReMag® | Picometer Magnesium for Cellular Energy | RnA ReSet
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
  2. Magnesium - Health Professional Fact Sheet
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
  3. New Capstone, Inc - 525164 - 06/27/2017 | FDA
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.
  4. Dietary Supplements: What You Need to Know
    Source consulted: 2026-09-20. This is a reference resource, not a claim that we conducted the studies or tested a product.