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Engn
Photo and title link to Amazon · paid link, a search, not a verified listing · the rating is unaffected
Dose integrity
45% weight
4.54/10
Value
30% weight
3.41/10
Consensus
25% weight
9.40/10
$2.20
median
Consensus source: 4.7/5 across 3,281 buyer reviews on the brand's storefront · source ↗ · captured 2026-10-18. Brand-site reviews skew positive; see how we rate.
5.42/ 10
Composite score · 100% of category weighting covered
Nutrition
| Nutrition (per serving) | Amount |
|---|---|
| Protein | not enough data |
| Calories | not enough data |
| Total Carbs | not enough data |
| Sugar | not enough data |
| Sugar Alcohols | not enough data |
| Fat | not enough data |
| Fiber | not enough data |
| Sodium | not enough data |
Dose audit
| Ingredient | Disclosed dose | Clinical threshold | Status | Source |
|---|---|---|---|---|
| Choline Bitartrate | 700 mg | 2,000 mg | UNDER | Naber, Hommel & Colzato, Sci Rep 2015;5:13188 — trial dosing 2 g |
| Betaine Anhydrous | 1,000 mg | 2,500 mg | UNDER | Cholewa et al., J Int Soc Sports Nutr 2013 — 2.5 g/day |
| L-Tyrosine | 250 mg | 2,000 mg | UNDER | Colzato et al., Front Behav Neurosci 2013;7:200 (PMID 24379768) — a single 2.0 g oral dose in healthy adults |
| Caffeine | 300 mg | 200 mg | MET | Guest et al., ISSN Position Stand 2021, J Int Soc Sports Nutr 2021;18:1 (PMID 33388079) — 3-6 mg/kg; the threshold is the low end, 3 mg/kg, for a 67 kg adult: 200 mg |
| L-Theanine | 50 mg | 100 mg | UNDER | Giesbrecht et al., Nutr Neurosci 2010 — 97 mg paired with caffeine |
| Creatine Monohydrate | 2,000 mg | 5,000 mg | UNDER | Kreider et al., ISSN Position Stand 2017 — 3-5 g/day maintenance |
| Beta-Alanine | 1,600 mg | 4,000 mg | UNDER | Trexler et al., ISSN Position Stand 2015, J Int Soc Sports Nutr 2015;12:30 (PMID 26175657) — 4-6 g/day; the threshold uses the low end, 4 g |
Coverage: 11 of 19 dosed ingredients on this label matched the clinical reference.
Price
$29.99
$29.99
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Provenance
- How it was read
- Read from the label image by two independent readers who agreed on every published value
- Captured
- 2026-09-28
- Verified
- 2026-09-28
- Panel source
- source ↗
- Label read
- Blue Raz
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