Magnesium Chloride vs Magnesium Glycinate
Two forms of the same compound. What differs is how much of it your body absorbs, how well you tolerate it and what it costs per month.
Side by side
Green marks the better value| Magnesium Chloride | Magnesium Glycinate | |
|---|---|---|
| Bioavailability | 50% | 90% |
| Safety rating | 8/10 | 9/10 |
| Cost per month | $20 | $25 |
| Daily dose | 200-600 mg oral + topical | 200-600 mg |
| Best timing | Oral evening topical as needed | Evening with or without food |
| Evidence level | A | A |
Verdict
Magnesium Glycinate wins on 2 of the measurable metrics.
It absorbs at 90% against 50%, which is the number that decides how much of the dose actually reaches you. It does cost more per month — that is the trade-off.
What actually differs
Magnesium Chloride
Highly bioavailable magnesium form excellent for both oral and topical use, offering rapid absorption and versatile application methods
- Versatile use
- Rapid absorption
- Topical option
- Good bioavailability
- Skin irritation potential
- Hygroscopic
- Salty taste
- Storage challenges
Magnesium Glycinate
Highly bioavailable chelated form of magnesium bound to glycine amino acids for superior absorption
- Superior absorption
- Gentle on stomach
- Calming effects
- High quality
- More expensive
- May cause drowsiness
- Lower elemental magnesium %
- Potential hypotension
How these numbers are read
- Bioavailability is the share of the dose that reaches your bloodstream — the single most useful number when choosing a form.
- Safety rating reflects tolerance at normal doses, not toxicity risk.
- Cost is per month at the typical daily dose, so a cheaper form taken at double the dose is not cheaper.
- Evidence level A means the form itself was studied, not just the parent compound.
Where to buy
Both forms deliver the same compound — pick by the numbers above, then check the label matches.
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Common questions
Which is better, Magnesium Chloride or Magnesium Glycinate?
Magnesium Glycinate absorbs better — 90% against 50%. Absorption decides how much of the dose actually reaches you, so it usually matters more than the milligrams printed on the label.
What is the difference between Magnesium Chloride and Magnesium Glycinate?
Both deliver the same active compound. They differ in how well the body takes them up, how they are tolerated and what a month costs: $20 against $25.
Can you take Magnesium Chloride and Magnesium Glycinate together?
You can, but there is rarely a reason to. Two forms of the same compound stack the same active dose, so the usual approach is to pick the better absorbed one and dose it properly.