You're getting 350mg of **Magnesium** per serving in the bisglycinate form — one of the best-absorbed forms available, and gentle on your stomach. That dose sits right at the top of the 100–400mg clinical supplemental range, so you're well-covered whether your goal is sleep quality, stress relief, muscle recovery, or heart health. Deficiency is extremely common (estimated in over half the population), and this dose meaningfully addresses that gap.

The formula includes 5mg of **BioPerine** (black pepper extract), which is dosed at the minimum studied level to help enhance nutrient absorption. It's a minor addition, but it supports your body's ability to take in the magnesium more efficiently.

The tradeoff is pill burden — you need to take 4 capsules per serving to reach that 350mg dose. If swallowing multiple capsules daily is an issue, a powder format might be more practical for you at this dose level.

BioStacks
Solaray

Higher Absorption Magnesium Glycinate 350mg

4 Capsules · 60 servings · $0.53/serving

iHerbAmazon

Best for

Sleep

Ingredients (2)

Magnesium

100%

Dose

350 mg

Target

100–400 mg

Form

Premium

BioPerine

100%

Dose

5 mg

Target

5–20 mg

Form

—

Nutrition

Calories, macros & sodium.

  • Calories10 Calorie(s)

Other Ingredients (3)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

Track this supplement in your stack

Get personalized insights, interactions, and coverage recommendations.

Get Started Free

Similar Supplements

Products that cover similar health dimensions based on their ingredients.

High Absorption Magnesium Glycinate 350

KAL

High Absorption Magnesium Glycinate 350

😴 for Sleep

84
Magnesium Glycinate 350 mg

Solaray

Magnesium Glycinate 350 mg

😴 for Sleep

84
Magnesium Glycinate with BioPerine

Mason Natural

Magnesium Glycinate with BioPerine

❤️ for Heart

84
Mag Glycinate 350 mg

ZHOU

Mag Glycinate 350 mg

😴 for Sleep

84

Solaray

Higher Absorption Magnesium Glycinate 350mg

😴 for Sleep

84

Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

BioStacks

Know exactly what's in your supplements.

Navigate

  • Home
  • App Store
  • Google Play

Resources

  • Contact & Support
  • Pricing
  • Terms of Service
  • Privacy Policy
  • Refund Policy

Explore

  • Health Areas
  • Best Supplements
  • Nutrients
  • All Supplements

Popular Picks

  • Best Magnesium for Sleep
  • Best Collagen for Skin
  • Best Creatine for Muscle
  • Best Vitamin D for Bone Health
  • Best Probiotics for Digestion
  • Best CoQ10 for Heart
© 2026 BioStacks. All rights reserved. Not medical advice.