Magnesium Oil vs Magnesium Glycinate: Which Should You Take?
One goes on your skin, the other you swallow, and they're not really solving the same problem. Here's how magnesium oil and magnesium glycinate actually compare, so you can pick based on what you're trying to achieve.
Quick answer
Magnesium glycinate is an oral supplement, absorbed through the digestive tract, with more established research behind it for raising magnesium levels and supporting sleep. Magnesium oil is a topical magnesium chloride spray that bypasses digestion, appealing if oral magnesium upsets your stomach, but how much it actually delivers into your bloodstream through skin is genuinely disputed. If you're correcting a deficiency, glycinate is the better-evidenced pick. If you want something to rub into a sore muscle, magnesium oil is a reasonable, low-risk option.
At a Glance
| Magnesium Oil | Magnesium Glycinate |
|---|---|
| Topical (spray or lotion) | Oral (capsule or powder) |
| Bypasses digestion | Absorbed via the digestive tract |
| Absorption through skin is disputed | Well-documented absorption pathway |
| Mainly used for local muscle tension | Mainly used for sleep, relaxation, correcting deficiency |
| Can cause tingling or mild stinging on skin | Generally gentle on the stomach compared to other oral forms |
Magnesium Glycinate
Magnesium glycinate is magnesium bound to the amino acid glycine, taken as a capsule or powder. It's absorbed through the digestive tract, and this chelated form is generally considered easier on the stomach than forms like magnesium oxide or magnesium citrate, which can cause a laxative effect at higher doses. It's most often used for sleep quality, general relaxation, and correcting a diagnosed magnesium deficiency, since oral magnesium has a well-documented absorption pathway.
Typical commercial products provide somewhere around 100 to 400 mg of elemental magnesium per serving, though the right amount for you depends on your diet and any medical guidance you've received. The National Institutes of Health lists the adult Recommended Dietary Allowance at roughly 310 to 420 mg per day, including what you get from food.
Magnesium Oil
Magnesium oil is a concentrated magnesium chloride solution applied to skin, usually as a spray. It bypasses the digestive tract entirely, which is appealing if oral magnesium causes stomach upset, but how much magnesium actually crosses intact skin into the bloodstream is genuinely debated among researchers. It's most commonly used for applying directly to sore or tense muscles, rather than as a way to systematically raise magnesium levels. See our full magnesium oil benefits breakdown for more detail.
Which Should You Choose?
If your goal is correcting a magnesium deficiency, ideally confirmed by a doctor, or supporting sleep through raising your overall magnesium levels, glycinate is the better-evidenced choice, since it's absorbed through a well-documented pathway. If your goal is applying something directly to a sore, tense muscle, or you specifically want to avoid the digestive tract, magnesium oil is a reasonable, low-risk thing to try, just without over-relying on the idea that it's delivering a measured systemic dose the way a pill does.
Some people use both, for different reasons, since one is swallowed and the other is applied to skin, they don't directly interact. If you're managing a health condition or take regular medication, particularly anything affecting kidney function, mention both to your doctor.
Considering the topical option?
We reviewed a magnesium chloride spray sourced from Zechstein seabed deposits, formulated to reduce the sting common in this category.
Read the WellaNaturals Magnesium Oil reviewRelated reading
Frequently Asked Questions
What does magnesium glycinate do?
Magnesium glycinate is magnesium bound to the amino acid glycine, taken orally. It's absorbed through the digestive tract and is generally considered gentler on the stomach than forms like magnesium oxide. It's most commonly used for sleep quality and general relaxation, and to correct a diagnosed magnesium deficiency.
How much magnesium glycinate should I take?
This depends on the product and your individual needs, most commercial supplements provide somewhere around 100 to 400 mg of elemental magnesium per serving. The National Institutes of Health lists the adult Recommended Dietary Allowance at roughly 310 to 420 mg per day (including food sources), but a doctor or pharmacist can advise on a specific dose for you.
When should I take magnesium glycinate?
Many people take it in the evening, since it's commonly used to support sleep and relaxation, but there's no strict rule requiring evening dosing. Consistency matters more than the exact time of day. Taking it with food can reduce mild stomach upset.
Is magnesium oil or magnesium glycinate better?
They're not really interchangeable. Glycinate has more established research behind it for raising magnesium levels and supporting sleep. Magnesium oil bypasses digestion but how much is absorbed through skin is disputed. If you're correcting a deficiency, glycinate is the better-evidenced choice. If you want something to apply directly to a sore muscle, magnesium oil is a reasonable option.
Can I use magnesium oil and take magnesium glycinate at the same time?
Generally yes, since one is applied to skin and the other is swallowed. That said, magnesium supplementation from any source adds up, so mention both to your doctor if you're managing a health condition or taking regular medication.
This article is for general information and isn't medical advice. Statements have not been evaluated by the FDA and aren't intended to diagnose, treat, cure or prevent any disease. Speak to your doctor before starting any new supplement. This page contains an affiliate link to a product review; see our Editorial Policy.