
SS Sport Supplies Magnesium Glycinate with Vitamin B6 Review
SS Sport Supplies · Last updated 10 April 2026
Trust Checklist0/6 passed
3rd Party Batch Tested
No public 3rd party batch test results available
No Fillers or Binders
Contains fillers, binders, or inactive ingredients
No Oxide Buffering
Contains or likely contains cheap magnesium oxide
Pure Magnesium Glycinate
Labelled as glycinate but likely oxide-buffered
GMP Certified Facility
GMP certification not confirmed
Made in the UK
Manufacturing location not confirmed as UK
Rating Breakdown
Pros & Cons
Pros
- Added Vitamin B6 supports magnesium metabolism
- 120-capsule supply is generous
- Competitive pricing at 57p per gram
- Simple 2-capsule daily serving
- 1,500mg strength per serving
Cons
- Lab tested 8% below label claim (291mg vs 315mg claimed)
- Only product in our test that was under-dosed
- Label maths suggest oxide buffering — same pattern as other competitors
- Lesser-known Amazon-only brand with limited reputation
- No third-party test results publicly available
- Generic black bottle packaging doesn't inspire confidence
Product Details
- Magnesium Form
- Bisglycinate (Glycinate) — Likely Oxide-Buffered
- Dosage per Serving
- 1,500mg magnesium glycinate
- Elemental Magnesium
- 315mg (claimed) — 291mg (lab tested, 8% under)
- Serving Size
- 2 capsules
- Servings per Container
- 60
- Price
- £9.99
- Price per Serving
- £0.17
- Other Ingredients
- Vitamin B6 (Pyridoxine Hydrochloride) 1.4mg, Vegetable Capsule Shell (HydroxyPropylMethylCellulose)
- Certifications
- Made in Britain, Vegetarian Society Approved, GMO Free
Full Review
Ingredient Quality
SS Sport Supplies' Magnesium Glycinate with Vitamin B6 has two problems revealed by our independent lab testing. First, it's the only product in our comparison that was under-dosed: we found 291mg of elemental magnesium versus the 315mg claimed — an 8% shortfall. Second, as with other products in this test, the high elemental claim from a glycinate label suggests oxide buffering.
The product comes in a black bottle with teal accents, claiming 1,500mg strength per serving with 120 capsules. The addition of Vitamin B6 is the formula's one genuine positive. B6 supports cellular magnesium uptake and is a sensible inclusion in a magnesium supplement. But a useful co-nutrient doesn't compensate for a product that doesn't deliver what the label promises.
Value Analysis
At 57p per gram of elemental magnesium, Sport Supplies sits mid-range on price. The 120-capsule supply is generous if the single-capsule serving holds up. However, value calculations based on a 315mg label claim need to be adjusted down to the 291mg reality. And if a portion of that 291mg is from oxide rather than the glycinate stated on the label, the true absorbed value drops further.
Effectiveness
The under-dosing issue directly impacts effectiveness. You're not getting the dose you think you're getting. If we also factor in likely oxide buffering, the bioavailable magnesium per serving could be significantly lower than the 291mg lab result suggests. The B6 addition partially mitigates this by improving absorption of whatever genuine glycinate is present, but it's not enough to overcome the fundamental dosing and transparency issues.
Who Is This Best For?
We struggle to recommend SS Sport Supplies when it's the only product that failed to meet its own label claim in our lab testing. The brand's limited track record, Amazon-only distribution, and lack of independent testing data compound the concern. There are better options at similar price points.
Where to Buy
Prices are approximate and may vary. As an affiliate, we may earn a commission from qualifying purchases at no extra cost to you. This does not influence our reviews or rankings of SS Sport Supplies Magnesium Glycinate with Vitamin B6.
SS Sport Supplies Magnesium Glycinate with Vitamin B6 FAQ
How much was Sport Supplies Magnesium under-dosed?
Our independent lab testing found 291mg of elemental magnesium per serving versus the 315mg claimed on the label — an 8% shortfall. This was the only product in our test that came in below its stated dose.
Does the added Vitamin B6 help?
Vitamin B6 does support magnesium absorption and metabolism, so it's a useful addition. However, it doesn't compensate for an under-dosed product with transparency concerns about the magnesium form being used.