Momentous Magnesium Bisglycinate review

Momentous Magnesium Bisglycinate takes the top spot because it pairs the sleep-friendly glycinate form with an outside certification at a low price. Each two-capsule serving gives 200mg of magnesium as magnesium bisglycinate, and the page tells buyers to take it 30 to 60 minutes before bed. The ingredients panel lists only the capsule shell, silica, magnesium stearate and microcrystalline cellulose next to the magnesium, and Momentous says the product is NSF Certified for Sport. The page also reports a Light Labs test from July 2026 covering 11 substances. A one-time bottle of 30 servings costs $16.99, about $0.57 a night, and the subscription takes it to $12.74. It is HSA and FSA eligible and comes with a 30 day money back guarantee. The catch is that this is a new release with 15 reviews so far, and one bottle only lasts a month. Shoppers who want a longer track record can pick Thorne's powder, which carries the same certification.

Who it is for

sleepers who want a certified capsule at a low price

Price

$16.99 one-time for 30 servings; Subscribe 25% Off brings it to $12.74.

One-Time Purchase $16.99
Quoted from the vendor pricing page on November 13, 2026.

Key features

• 200mg of magnesium as magnesium bisglycinate per 2-capsule serving
• 30 servings per container
• NSF Certified for Sport per the product page
• Directions: 2 capsules 30 to 60 minutes before bed
• Tested by Light Labs in July 2026 for 11 substances

Strengths and weaknesses

• Strength: $16.99 one-time, about $0.57 per serving, or $12.74 with a subscription
• Strength: HSA and FSA eligible with a 30 day money back guarantee
• Strength: No added sugar and no proprietary blend, per the ingredient panel
• Weakness: Listed as a new release with only 15 reviews on the page
• Weakness: 30 servings means a reorder every month at the suggested dose
• Weakness: Free US shipping only starts at $99

Key facts

• Form: Magnesium bisglycinate capsules
• Magnesium per serving: 200mg (2 capsules)
• Servings: 30
• Certification: NSF Certified for Sport
• Price per serving: About $0.57 one-time

Where it ranks

Momentous Magnesium Bisglycinate is No. 1 in our Best Magnesium Supplements verdict.