01Gold Standard
Magnesium Bisglycinate
$2590 capsules
bisglycinatebioavailableNSF-certified
Bisglycinate form is highly bioavailable and doesn't cause GI issues. Glycine itself promotes relaxation. NSF Certified for Sport.
Quality Score12/12
Purity
Evidence
Transparency
Value
Strong Evidence
◈
Ingredients & Purity
Magnesium bound to glycine—amino acid with relaxation benefits. No fillers.
◇
Scientific Evidence
Glycinate bioavailability well-established. Glycine has clinical evidence for sleep.
○
Brand Transparency
NSF Certified. Batch testing.
□
Value Assessment
$25/90 capsules. Good value for quality form.
Why Not Alternatives?
Magnesium oxide (most common) has <4% absorption. Citrate causes diarrhea. Threonate is better for cognition but bisglycinate is better for sleep and muscle relaxation.