Pre-workout · Formula check
Did Transparent Labs Lean Pre-Workout change its formula?
THE SHORT ANSWER · NO CHANGE ON FILE
No confirmed formula change is on file. The label Transparent Labs published, dated Aug 3, 2026, was read twice and 53 of 53 fields agreed. Archives have not yet been searched for earlier labels, so this is not proof the formula never changed.
- Current labelSeen Aug 3, 2026
- Earlier labels foundNone yet
- Archive searchNot done yet
- Label read twiceEvery field matched (53 of 53)
A missing earlier label is not proof that nothing changed. Source: Transparent Labs, transparentlabs.com (opens in a new tab), seen Aug 3, 2026.
The labels, dated
One dated label on file. Each one has a source you can open.
A change counts only between labels of the same product, flavor, size and sales channel, both dated.
Current labelSeen Aug 3, 2026
Product-wide panel, 15 dosed lines · Transparent Labs
transparentlabs.com (opens in a new tab)
Tastes different?
Check your tub against this label. Line by line.
Turn your tub to the Supplement Facts panel. If an amount differs, you hold a different label from the one read here. If every line matches, the label does not explain the difference.
| Declared line | Current label, Aug 3, 2026 |
|---|---|
| Iodine (as Potassium Iodide) | 225 mcg |
| Zinc (as Zinc Citrate) | 15 mg |
| Selenium (as L-Selenomethionine) | 55 mcg |
| Copper (as Copper Carbonate) | 1 mg |
| Chromium (as Chromax (Chromium Picolinate)) | 200 mcg |
| Citrulline Malate 2:1 | 6000 mg |
| Beta-Alanine | 2000 mg |
| Betaine Anhydrous (as BetaPure) | 1500 mg |
| Acetyl L-Carnitine HCl | 1000 mg |
| Choline Bitartrate | 500 mg |
| L-Theanine | 180 mg |
| PurCaf Organic Caffeine (from Green Coffee Bean) (Coffea arabica) (seed) | 180 mg |
| Theobromine | 50 mg |
| Bioperine (Piper Nigrum) (Black Pepper (Fruit) Extract) | 5 mg |
| Huperzine A (Huperzia serrata) (leaf) | 100 mcg |
Serving on the label: 1 Scoop (13.9g) per serving. Read from Transparent Labs, dated Aug 3, 2026.
Signal Verified, here
What we checked. And the gaps, printed.
- Checked: Label read twice53 of 53 fields agreed on the panel from transparentlabs.com, dated Aug 3, 2026.
- Not yet: FlavorsRead: one product-wide panel. 9 of 9 flavors on the store are not read yet.
- Not yet: Where it's soldBrand's own store only. Retail labels have not been compared.
- Not yet: Earlier labels1 dated label on file. The archive search is not complete, so an earlier label may exist.
- Checked: MarketUS market only.
- Checked: Kept currentRechecked within 180 days. If it is not re-verified by Jan 30, 2027, the status comes off.
Not checked yet
- 9 of 9 flavors on the brand's store (2026-10-20) have no panel read yet.
- Retail labels have not been compared with the brand's own store.
- Earlier labels may exist that the Record has not recovered; a missing observation is not proof nothing changed.
Labels read from the brand's own store (DTC) channel only. Other channels may sell a different label. The panel is declared product-wide; no flavor-specific panel has been read. US market only.
Label read twice. Both readings agree. Not a laboratory test, safety certification, or endorsement of the product. How Signal Verified works
Method
How this page was made.
What FormulaSignal did
- Read the label Transparent Labs published, dated Aug 3, 2026, twice and independently: 53 of 53 fields agreed.
- Kept that label with the day each was seen and its source.
- Counted a change only between two dated labels of the same flavor, size and sales channel: 0 confirmed changes on file.
- Printed every gap the Record knows about, above, instead of leaving it out.
What it did not do
- No look inside your tub. A product record does not establish what a particular container holds, and label dates are not manufacture dates.
- No taste test and no lab test. Every figure is what a label or a brand's own page declares, not what was measured in a tub.
- No score and no winner. Differences are measured and shown; nothing is rated.
- No payment and no preview. No brand paid to appear, and none saw this page before it was published.
- No health advice. Whether an ingredient or an amount suits you is a question for a clinician.
Evidence
Sources you can open. Each one dated.
Brand's own pageAug 3, 2026
The label shown here, read twice: 53 of 53 fields agreed
Transparent Labs · transparentlabs.com (opens in a new tab)
Questions
Transparent Labs Lean Pre-Workout: formula questions
Did Transparent Labs Lean Pre-Workout change its formula?
No confirmed formula change is on file. The label Transparent Labs published, dated Aug 3, 2026, was read twice and 53 of 53 fields agreed. Archives have not yet been searched for earlier labels, so this is not proof the formula never changed.
My Transparent Labs Lean Pre-Workout tastes or feels different. Is it a new formula or a bad batch?
A label can answer half of that: whether the formula on the label changed. Compare the Supplement Facts panel on your tub with the label dated Aug 3, 2026 on this page (it declares Iodine (as Potassium Iodide) 225 mcg, Zinc (as Zinc Citrate) 15 mg and Selenium (as L-Selenomethionine) 55 mcg per serving). If your amounts differ, you hold a different label from the one on file. If they match, the label does not explain the difference. FormulaSignal does not test what is inside a tub.
What did FormulaSignal check, and what not yet?
Checked: the label from Transparent Labs, dated Aug 3, 2026, read twice with 53 of 53 fields matching. Not yet: 9 of 9 flavors on the brand's store (2026-10-20) have no panel read yet; Retail labels have not been compared with the brand's own store; Earlier labels may exist that the Record has not recovered; a missing observation is not proof nothing changed.
Will I find out if Transparent Labs Lean Pre-Workout changes its formula later?
Transparent Labs Lean Pre-Workout is re-checked within 180 days, and it is on the monitoring schedule so the next label change is looked for. Save it to your Locker free to keep its dated label beside the one you take. A change counts only when two dated labels of the same flavor, size and sales channel differ.
Keep reading
More on Transparent Labs Lean Pre-Workout.
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- Transparent Labs Bulk Black Pre-Workout vs Transparent Labs Lean Pre-WorkoutLabels compared
- Legion Athletics Pulse vs Transparent Labs Lean Pre-WorkoutLabels compared
- Transparent Labs Lean Pre-Workout vs Transparent Labs Stim-Free Pre-WorkoutLabels compared
Other Transparent Labs formula checks
- Did Transparent Labs Pump Pre-Workout change?No change on file
- Did Transparent Labs Stim-Free Pre-Workout change?No change on file
- Did Transparent Labs Grass-Fed Casein Protein change?No change on file
- Did Transparent Labs Grass-Fed Whey Protein Isolate change?No change on file
- Did Transparent Labs Grass-Fed Beef Protein Isolate change?No change on file
- Did Transparent Labs Organic Vegan Plant-Based Protein change?Changed
Every formula check · How to tell if a formula changed · En español
Take Transparent Labs Lean Pre-Workout?
Know before you reorder.
Save it to your Locker free with this dated label. If a newer label differs from yours, you see both, dated, instead of finding out from the taste.