ZMA Capsules, 810mg, 270 Pack
by Bulk
Compare Prices
Bulk's ZMA is a chelated zinc/magnesium/B6 formula intended to mirror the original SNAC Systems ratio, taken as 3 capsules before bed. Best for Regular gym-goers and athletes seeking overnight recovery support and People with mild sleep difficulties or restless legs.
According to the AIScored 0–100 scoring system, ZMA Capsules, 810mg, 270 Pack by Bulk scores 62.0/100, ranking #17 out of 24 products in Sleep Support (2026). Strongest category: Value For Money (74.0/100). Weakest: Certifications (22.0/100).
Is ZMA Capsules, 810mg, 270 Pack worth buying?
“Bulk's ZMA Capsules deliver noticeably deeper sleep according to reviewers, primarily because the chelated forms (zinc and magnesium aspartate) absorb far better than the cheap oxide versions most competitors use. Scoring 62/100 with a full 90-day supply, it's genuinely the best-value properly formulated ZMA available on Amazon UK.”
What Do Reviewers Say About ZMA Capsules, 810mg, 270 Pack?
Sample excerpts from currently available source material used in this product analysis.
"THE REAL DEAL. This is the original - 450mg magnesium chelate, 30mg zinc aspartate, 10.5mg Vitamin B12 which is the patented version and the ratio which increased testosterone by 33% in a large group of American football players. You know t..."
"Didn't agree with me. I like Bulk as a company and generally love the quality and price of their products. Whilst I'm sure this product contains what it's supposed to, the forms of Magnesium in the product (Citrate and Oxide) can produce di..."
"Excellent quality. Was taking 3 tablets per day one hour before sleep. I struggle with restless legs and it takes me a long time to get to sleep. These helped me rest and sleep better! I realised this when I ran out... after 2 days of not t..."
"Good results at a reasonable price. Great product at a reasonable price. It may be the placebo effect but I always sleep a little better with ZMA in my system. I train regularly (Martial arts, yoga and cycling) so recovery is very important..."
"Best sleep I've ever had. I've been recommending ZMA supplementation for many years. ZMA is not a testosterone booster. Yes, research shows that it may help athletes maintain higher testosterone levels during intense training periods, thoug..."
How does ZMA Capsules, 810mg, 270 Pack score?
Detailed score breakdown and key findings from our analysis of 15 reviews across 1 source.
Pros
- +Multiple reviewers report meaningfully improved sleep quality, including deeper sleep and vivid dreams consistent with mineral absorption
- +Uses chelated forms (Zinc Monomethionine Aspartate, Magnesium Aspartate) for better bioavailability versus oxide forms
- +Praised as the best-value properly dosed ZMA available on Amazon UK, with a 90-day supply per bottle
- +Supports recovery for athletes and gym-goers — several users note lower performance when they stop taking it
- +Reported to help with restless legs and general fatigue reduction at recommended bedtime dose
Cons
- -Four separate reviews report broken or missing tamper seals — a significant and recurring quality control failure
- -At least one user reports the formula was changed to zinc sulphate, causing serious reactions in those with sulphate sensitivity or MTHFR gene variants
- -Digestive side effects (cramps, wind, diarrhoea) reported, potentially linked to magnesium form or dose
- -Not third-party tested, limiting confidence in label accuracy and purity for athletes subject to doping controls
Best For
Watch Out
- !Inspect tamper seal immediately on delivery — multiple customers received bottles with broken or absent seals
- !Recent batches may use zinc sulphate rather than zinc monomethionine; check current label if you have sulphate sensitivity or MTHFR mutations
- !Magnesium at 150mg elemental per serving may cause loose stools or cramps in sensitive individuals — start with 1–2 capsules to assess tolerance
- !Not third-party tested; unsuitable for competitive athletes requiring certified-clean supplements
What is ZMA Capsules, 810mg, 270 Pack?
ZMA Capsules, 810mg, 270 Pack is a sleep support product by Bulk in capsule form, scoring 62.0/100 on AIScored.
- • Bulk ZMA is a scientifically formulated blend of Zinc, Magnesium, and Vitamin B6 in their most bioavailable forms.
- • Zinc contributes to the maintenance of normal testosterone levels and immune function, while Magnesium supports normal muscle function and helps reduce tiredness and fatigue.
- • Vitamin B6 contributes to normal hormonal regulation.
- • Take 3 capsules before bed for optimal absorption.
- • Each bottle provides a 90-day supply.
What's Inside ZMA Capsules, 810mg, 270 Pack?
ZMA Capsules, 810mg, 270 Pack contains 3 active ingredients: Zinc (as Zinc Monomethionine Aspartate), Magnesium (as Magnesium Aspartate), Vitamin B6 (as Pyridoxine HCl).
Active Ingredients
- Zinc (as Zinc Monomethionine Aspartate)
- 10mg
- Magnesium (as Magnesium Aspartate)
- 150mg
- Vitamin B6 (as Pyridoxine HCl)
- 3.5mg
Is ZMA Capsules, 810mg, 270 Pack Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Price History (90 days)
Quick Facts
- Form
- Capsule
- Dose
- 810mg (3 capsules)
- Serving
- 3 capsules
- Servings
- 90
- Vegan
- Yes
Frequently Asked Questions
Is ZMA Capsules, 810mg, 270 Pack worth buying in 2026? ▼
What is the best price for ZMA Capsules, 810mg, 270 Pack in the UK? ▼
What are the pros and cons of ZMA Capsules, 810mg, 270 Pack? ▼
Is ZMA Capsules, 810mg, 270 Pack third-party tested? ▼
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
What Are Other Top Sleep Support?
Other top-rated sleep support you might want to compare.
BetterYou Magnesium Sleep Kids' Body Lotion, Pure Magnesium Chloride with Lavender and Chamomile Essential Oils, Paediatrician Approved, Dermatologically Tested and Suitable for Sensitive Skin
BetterYou
BiOptimizers Sleep Breakthrough 60 Capsules
BIOptimizers
5-HTP 100mg per Capsule 120 Capsules 4 Month Supply High Strength 5 HTP Supplement from Griffonia Seed Extract with Serotonin & Melatonin Conversion Support for Sleep, Mood & Relaxation - Health4All
Health4All
5HTP Night Support - Sleep Gummies for Adults - 90 Vegan Melatonin Alternative Gummies - Passionfruit Taste - High Strength Griffonia Simplicifolia, L-Theanine, Lavender & Chamomile - Nu U Nutrition
Nu U Nutrition
Feedback & Suggestions
Spotted an issue? Wrong price, incorrect data, or something else off? Let us know and we'll fix it.
Missing a product you'd like us to review? Tell us the product name and we'll consider adding it.