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]
| Situation | Response |
|---|---|
| 150 mg per serving | Count the elemental amount |
| 2017 warning letter | Historical disease-claim enforcement |
| Safety for you | Depends on dose and clinical context |

Sources for this article
- 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. - 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. - 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. - 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.