Read the Label Before You Scoop: The Pre-Workout Powders Hiding Behind 'Proprietary Blends'

Here's a quick experiment the next time you're in the supplement aisle: flip over that tub of pre-workout you were about to buy and look for a line that says something like "Performance Blend — 8,500mg." If the ingredients underneath it don't have individual milligram amounts, congratulations — you've found a proprietary blend, and you have no idea what's actually in your scoop.

We're not being dramatic. Proprietary blends are the supplement industry's favorite magic trick: they let a brand list impressive-sounding ingredients while conveniently omitting how much of each one made it into the formula. Since ingredients must be listed in descending order of weight within a blend, a formula where caffeine comes before citrulline is telling you something — and it's usually not good.

Why Blends Exist (Hint: It's Not to Protect Trade Secrets)

Brands will tell you blends protect their formulas from copycats. The reality is less flattering: blends make it cheap to underdose. Clinical research on L-citrulline, for example, generally lands in the 6,000–8,000mg range for a meaningful pump benefit. Beta-alanine needs around 3,200mg daily. If a blend totals 8,000mg and contains a dozen ingredients, simple math says several of them are getting fairy dust doses — just enough to appear on the label, not enough to do anything.

You end up paying for marketing, not molecules.

The Label-Hiders: Popular Pre-Workouts Using Proprietary Blends

We pulled the supplement facts panels from a dozen of the top-selling pre-workout powders on major US retailers. These are the ones leaning on blends (formulas change, so always double-check the current label):

1. C4 Original (Cellucor) — The classic. The "Explosive Energy Blend" lumps together beta-alanine, creatine, and citrulline with no individual doses. Beta-alanine is likely dosed reasonably given its position, but citrulline almost certainly isn't.
2. Nitrosurge (Jack Factory... and its many cousins) — A blend-heavy formula where the pump ingredients share space with everything else.
3. Hydroxycut Hardcore Elite (MuscleTech) — A "Super Thermogenic Blend" that bundles stimulants and nootropics with zero transparency.
4. JNX Sports The Curse! — Fun name, opaque label. One blend, no individual amounts.
5. Ryse loaded formulas in certain flavors — Ryse has improved over the years, but some SKU variations still group actives.
6. Six Star Pre-Workout Explosion (Walmart's shelf staple) — Budget pricing, budget transparency.
7. Total War (Redcon1) — A blend-based formula that's popular despite hiding key doses like citrulline.

To be clear: none of these are unsafe. They're just asking you to take dosing on faith — and faith doesn't move the needle in the gym.

The Transparent Five: Labels That Show Their Work

Now the good news. A wave of brands has built entire businesses on full disclosure, listing every active ingredient with its exact milligram count:

1. Legion Pulse — Clinically dosed citrulline (8g), beta-alanine (3.6g), fully disclosed. A longtime SupplementFind favorite.
2. Bulk Supplements / Transparent Labs Bulk — 8g citrulline malate, 4g beta-alanine, nothing hidden.
3. Gorilla Mode — Aggressive doses, aggressive transparency. Not for caffeine-sensitive folks.
4. Ryse (core formula) — When it's disclosed, it's dosed well — check the specific version.
5. Optimum Nutrition Gold Standard Pre (newer formula) — Even a mainstream giant has moved toward fuller disclosure, which tells you where the market is heading.

How to Decode Any Label in 30 Seconds

• Look for the word "blend." If you see it, put the tub down unless the brand lists individual amounts anyway (some do).
• Check citrulline for 6,000mg+ (as pure L-citrulline; 8g if it's citrulline malate).
• Beta-alanine should hit ~3,200mg. The tingles are harmless; an underdose isn't.
• Caffeine: 150–300mg per serving, and ideally listed separately so you can control your intake.
• Watch the filler count. Long ingredient lists with tiny blend totals mean everyone's getting scraps.

The Bottom Line

A pre-workout is one of the easiest supplements to evaluate — the effective doses are well established, so there's no excuse for a brand to hide them. If a company won't tell you how much citrulline you're swallowing, assume the answer is "not much." Your money (and your pump) deserves better.