Bulk Preworkout

Name: Bulk Preworkout
Brand: Transparent Labs
Price: 49.99 USD
Availability: InStock

Photo and title link to Amazon · paid link, a search, not a verified listing · the rating is unaffected

Dose integrity 45% weight 9.38/10

Value 30% weight 5.76/10

Consensus 25% weight 9.40/10

Cost in category per dosed serving

$1.78 median

$1.000 Cheaper than 58% of 34 scored pre-workouts $3.33

Consensus source: 4.7/5 across 5,061 buyer reviews on the brand's storefront · source ↗ · captured 2026-10-05. Brand-site reviews skew positive; see how we rate.

8.30/ 10

Composite score Exceptional

Composite score · 100% of category weighting covered

Nutrition

20.8 g per serving · 30 servings per container
Nutrition (per serving)	Amount
Protein	not enough data
Calories	5
Total Carbs	1 g
Sugar	not enough data
Sugar Alcohols	not enough data
Fat	not enough data
Fiber	not enough data
Sodium	180 mg

Dose audit

Ingredient	Disclosed dose	Clinical threshold	Status	Source
Citrulline Malate 2:1	8,000 mg	8,000 mg	MET	Perez-Guisado & Jakeman, J Strength Cond Res 2010 — 8 g citrulline malate
Beta-Alanine	4,000 mg	3,200 mg	MET	Trexler et al., ISSN Position Stand 2015 — 3.2 g/day maintenance
Betaine Anhydrous	2,500 mg	2,500 mg	MET	Cholewa et al., J Int Soc Sports Nutr 2013 — 2.5 g/day
Taurine	1,300 mg	1,000 mg	MET	Waldron et al., Sports Med 2018 — meta-analysis; 1-3 g acute pre-exercise
L-Tyrosine	1,000 mg	1,000 mg	MET	Jongkees et al., J Psychiatr Res 2015 — review of stress/cognitive-demand studies; acute dosing from 1 g
Alpha-GPC	150 mg	300 mg	UNDER	Ziegenfuss et al., J Int Soc Sports Nutr 2008 — 300-600 mg
Caffeine	200 mg	200 mg	MET	Guest et al., ISSN Position Stand 2021 — 3-6 mg/kg; 200 mg floor
L-Theanine	200 mg	100 mg	MET	Giesbrecht et al., Nutr Neurosci 2010 — 97 mg paired with caffeine

Coverage: 8 of 12 dosed ingredients on this label matched the clinical reference.