Transparent LabsBULK Pre-Workout

Overview

Transparent Labs BULK reads like a checklist of well-researched pre-workout ingredients at meaningful doses. One full scoop delivers 8 g of L-citrulline malate (2:1), 4 g of beta-alanine, 2.5 g of betaine anhydrous, 1.3 g of taurine, 1 g of L-tyrosine and 300 mg of alpha-GPC, plus 200 mg of organic caffeine paired with 200 mg of L-theanine and 50 mg of theobromine for a smoother ride. There are no artificial sweeteners, colors or proprietary blends; it is sweetened with stevia. Transparent Labs says every batch is third-party tested, and the product is Informed Choice certified.

What reviewers say

FeastGood says it is hard to find a better pre-workout for the money once you account for the doses, and a 2026 review from Wyatt Butters rates it among the best pre-workouts money can buy, with flavor the only thing keeping it from a perfect score. That flavor point is the most consistent criticism: stevia-sweetened fruit flavors taste lighter and less candy-like than mainstream brands, and one TikTok reviewer's verdict on a mango flavor was a blunt #badtaste. Reviewers tend to describe the energy as steady and focused rather than jittery, and newcomers should expect noticeable tingles from the 4 g of beta-alanine.

Who it's for

Lifters who want a daily, full-dose pre-workout with moderate caffeine, tested athletes who need certification, and anyone avoiding sucralose and dyes.

Bottom line

BULK does the fundamentals better than almost anything else: clinical doses, full transparency, moderate stimulants and third-party certification. At about $1.67 per serving it is not the cheapest tub, but it is the best overall value for a properly dosed formula.