Magnesium Glycinate 400mg vs BetterYou Magnesium Body Spray
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Magnesium Glycinate 400mg and BetterYou Magnesium Body Spray.
Last verified: 07 Apr 2026 · Based on 89 reviews
Magnesium Glycinate 400mg scores 80.0/100 vs BetterYou Magnesium Body Spray at 73.0/100. Magnesium Glycinate 400mg wins on effectiveness, value for money, side effects. BetterYou Magnesium Body Spray is stronger on ingredient quality and certifications.
Which is better: Magnesium Glycinate 400mg or BetterYou Magnesium Body Spray?
Solgar wins overall with a score of 80 versus 73, thanks to superior effectiveness and a well-evidenced glycinate form that genuinely aids sleep and muscle recovery. Choose BetterYou instead if oral magnesium upsets your stomach — its pure Zechstein formula is ideal for topical, localised relief.
— AIScored Editorial Team
How Do the Scores Compare?
Magnesium Glycinate 400mg
Solgar
|
BetterYou Magnesium Body Spray
BetterYou
|
|
|---|---|---|
| Overall Score | 80.0 | 73.0 |
| Effectiveness |
79.0/100
Best
|
62.0/100 |
| Ingredient Quality | 88.0/100 |
90.0/100
Best
|
| Value for Money |
70.0/100
Best
|
68.0/100 |
| Side Effects |
76.0/100
Best
|
72.0/100 |
| Certifications | 84.0/100 |
92.0/100
Best
|
| Best Price | £12.25 Amazon UK → |
£8.33
Amazon UK →
Cheapest
|
| Price per Serving | N/A | £0.04 200 servings |
| Form | N/A | Spray |
| Dose | N/A | 150mg per 5 sprays |
| Third-Party Tested | ✗ No | ✓ Yes |
| Reviews Analysed | 76 | 13 |
Magnesium Glycinate 400mg
Pros
- ✓Strong user-reported improvement in sleep quality — faster onset and fewer nighttime awakenings
- ✓Effective at reducing leg cramps, muscle tension, and post-exercise soreness
- ✓Glycinate chelate offers high bioavailability and is generally gentle on the digestive system
- ✓Clean, minimal formula — gluten-free, dairy-free, non-GMO, kosher-certified; trusted Solgar brand
Cons
- ✗Paradoxical insomnia or restless sleep in a subset of users, possibly linked to MTHFR mutations or glycine sensitivity — magnesium threonate may suit these individuals better
- ✗Large tablet/capsule size noted as inconvenient by multiple reviewers
- ✗Premium brand pricing is higher than comparable chelated magnesium products
- ✗High doses may disrupt calcium balance, contributing to eye twitching or muscle symptoms in some users
Best For
BetterYou Magnesium Body Spray
Pros
- ✓Exceptionally clean formula — only Zechstein magnesium chloride and purified water, zero fillers or additives
- ✓Avoids GI side effects (loose stools, nausea) associated with oral magnesium supplements
- ✓Zechstein Inside certified source — one of the purest naturally occurring magnesium chloride deposits
- ✓Strong ethical certifications: Vegan Society, Leaping Bunny, Made in UK
Cons
- ✗Transdermal magnesium absorption has limited and contested clinical evidence compared to oral supplementation
- ✗Can cause a tingling or burning sensation on initial application, particularly on freshly shaved or sensitive skin
- ✗150mg per 5 sprays may require frequent reapplication to reach meaningful daily targets (recommended RDA ~300–400mg)
- ✗Topical application is less practical than a single daily tablet for consistent dosing
Best For
What does the data say about Magnesium Glycinate 400mg vs BetterYou Magnesium Body Spray?
These two products take fundamentally different approaches to magnesium supplementation. Solgar's Magnesium Glycinate delivers 400mg orally in chelated form, where magnesium is bound to glycine for improved absorption and digestive tolerance. BetterYou's Body Spray, by contrast, applies magnesium chloride directly to the skin — 150mg per five sprays — bypassing the gut entirely. Solgar scores 80/100 at £12.25, with particularly strong ingredient quality at 88/100. The BetterYou spray scores 73/100 at £8.33, but its ingredient quality is actually marginally higher at 90/100, reflecting its remarkably clean two-ingredient formula.
If you're after reliable systemic magnesium intake for sleep or muscle cramps, Solgar is the clearer option — user evidence for oral glycinate improving sleep quality is well-documented, even if effectiveness scores only 79/100. The spray suits people who already struggle with loose stools or nausea from oral supplements, or athletes wanting targeted muscle recovery after training.
Practically speaking, Solgar's tablet size draws complaints, and a small number of users experience paradoxical sleep disruption. The BetterYou spray can sting on sensitive skin. Worth noting: the spray carries third-party testing certification; Solgar does not.
Solgar Magnesium Glycinate 400mg is a premium chelated magnesium supplement widely praised by reviewers for improving sleep quality, reducing muscle cramps, and easing nervous tension.
What are the key differences?
Frequently Asked Questions
Which is better, Magnesium Glycinate 400mg or BetterYou Magnesium Body Spray? ▼
Is Magnesium Glycinate 400mg worth the price compared to BetterYou Magnesium Body Spray? ▼
Which has fewer side effects? ▼
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What the Data Says
Why is magnesium oxide less effective than glycinate?
Oxide scores 21 points lower than glycinate in our testing — and it's not close on ingredient quality either. Across 17 magnesium products in our database, glycinate averages 74.3/100 overall. Oxide sits at 53/100. That's a gap you can feel.
The ingredient quality difference is even starker: 83.3 for glycinate vs 37.0 for oxide. A 46.3-point gap. The best glycinate in our database, Solgar Magnesium Glycinate 400mg, scores 80/100 overall with 88/100 on ingredient quality. The oxide product (Nature Made) manages just 52 on effectiveness and 37 on ingredient quality.
The reason is bioavailability. Magnesium oxide has roughly 4% absorption — most of it passes straight through your gut unused. Glycinate is chelated (bound to the amino acid glycine), which your intestines absorb much more efficiently. You also get fewer digestive side effects, since unabsorbed magnesium in the gut is what causes the laxative effect oxide is known for.
Oxide is cheap, which is why it's still everywhere. But cheap per pill means nothing if your body can't use it. Glycinate or citrate (avg 74.5/100) are both better choices.
Which form of magnesium is best for sleep, anxiety, or muscle cramps?
Glycinate for sleep and anxiety. Citrate for cramps. L-threonate for brain function. Each form has a different strength, and our scores back this up.
Sleep and anxiety → Glycinate. Averaging 74.3/100 across our database, with the best (Solgar Glycinate 400mg) hitting 80/100. Glycine, the amino acid it's bound to, acts as an inhibitory neurotransmitter — it calms your nervous system on its own. That's a two-for-one benefit you don't get from other forms. Thorne Bisglycinate (74/100) is another solid option at a lower dose.
Muscle cramps → Citrate. Averaging 74.5/100 overall with 85.0 on ingredient quality. Citrate absorbs well and is gentler on your wallet than glycinate. Solgar Citrate leads the pack at 77/100. If cramps are your main issue, this is the practical choice.
Brain function → L-Threonate. Life Extension Neuro-Mag scores 73/100. This is the only form shown to meaningfully raise magnesium levels in the brain by crossing the blood-brain barrier. It's pricier, but nothing else does what it does.
All-round absorption → Doctor's Best High Absorption tops our entire magnesium database at 82/100 overall (83 effectiveness, 88 ingredient quality) using chelated magnesium.
The one form to skip? Oxide at 53/100. Its 4% absorption rate makes it a poor choice no matter what you're taking it for.
Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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