Bisglycinate or citrate?
Compare the ingredient and the label separately from a claim about better sleep.
| Comparison | Bisglycinate | Citrate |
|---|---|---|
| Form | Magnesium bisglycinate / glycinate | Magnesium citrate |
| Sleep trial | Studied against placebo in the 2025 experiment.Inspect trial | Not tested as a comparator in that experiment. |
| Absorption | No head-to-head sleep advantage established here. | NIH reports greater absorption than oxide in small studies.Read reference |
| Actual label below | Thorne: 200 mg per scoop | Solgar: 400 mg per 2 tablets |
Reading two magnesium labels
Two manufacturer listings, compared using elemental magnesium. These are US label and price references; German availability and local prices have not been checked.
Thorne
Magnesium Bisglycinate
- Container
- 60 scoops
- Label serving
- 1 scoop
- Listed price
- $52 USD
- Cost / 100 mg
- $0.43 USD
Ingredients & calculation
Magnesium bisglycinate; citric acid and monk fruit concentrate.
$52 ÷ (60 × 200 mg) × 100 = $0.43, rounded. Shipping and taxes excluded.
Solgar
Magnesium Citrate
- Sizes listed
- 60 / 120 tablets
- Label serving
- 2 tablets
- Per label serving
- 400 mg
- Listed price
- Not shown
Ingredients & label detail
*Per-tablet amount calculated from the two-tablet label serving. Other ingredients: vegetable cellulose, vegetable stearic acid, silica and vegetable glycerin.
Manufacturer pages checked 30 September 2026. Label servings describe the products. Neither brand has been established here as the product tested in the sleep trial.
Sources & further reading
Clinical papers, nutrition references and manufacturer labels are identified separately.