Note

This product contains 4 disputed ingredients: BetaPure Betaine Anhydrous, elevATP (Ancient Peat; Apple Extract) (Malus spp.) (fruit), Senactiv Tienchi Ginseng (Panax notoginseng) (Root) Extract & Chestnut Rose (Rosa roxburghii) (Fruit) Extract, Huperzine A (Huperzia serrata) (Leaf). Evidence is mixed or doses are undisclosed — see the ingredient science section below for details.

Transparent Labs
Transparent Labs

Stim-Free Pre-workout

★★★★★
4.7 / 5·6 reviews at The FeedPerformance

Rating and review count from The Feed's customers. Pello community reviews are submitted separately on Pello.

$49.99for 30 servings· $1.67 per scoop
Where to buy

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Used for: endurance athletes and building muscle
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Transparent Labs
Transparent LabsMid-range

19 products on Pello, mainly performance, recovery and mineral.

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Strengths
  • ✓2 science-backed ingredients
Watch out for
  • →4 disputed ingredients — check label
6
Reviews at The Feed
0
Quality standards
11
Key ingredients
Pello Score™

Average

Meets the basics — check individual pillar scores

48
Science8/25
Transparency16/25
Value10/20
Athlete experience12/20
Quality2/10

Independent analysis No brand partnerships

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Ingredient science

Cross-referenced with PubMed & Examine.com

✓No flagged ingredients detected
Sodium (as Himalayan Rock Salt)150mg
✓ Proven

Sodium is the main electrolyte lost in sweat; replacing it supports fluid balance in long or hot sessions.

Potassium (as Potassium Chloride)100mg
~ Likely

An electrolyte involved in muscle and nerve function; sweat losses are much smaller than sodium's.

Citrulline Malate 2:18000mg
~ Likely

Raises nitric oxide and may modestly improve high-intensity performance at 3–6g; lower doses are less studied.

Beta-Alanine4000mg
✓ Proven

Raises muscle carnosine, which buffers acid; around 3–6g a day for at least 4 weeks improves efforts of roughly 1–4 minutes. Harmless tingling is common; split doses reduce it.

BetaPure Betaine Anhydrous2500mg
Disputed

Studied for strength and power; results are mixed.

Taurine1300mg
~ Likely

May reduce exercise-related oxidative stress and modestly improve endurance performance; results are mixed.

L-Tyrosine1000mg
~ Likely

An amino acid that may help maintain focus under stress or sleep loss; effects on endurance are inconsistent.

elevATP (Ancient Peat; Apple Extract) (Malus spp.) (fruit)150mg
Disputed

Oral ATP and 'ATP-boosting' ingredients are marketed for strength and power; a few small, mostly industry-funded trials show benefits, and results are inconsistent.

Senactiv Tienchi Ginseng (Panax notoginseng) (Root) Extract & Chestnut Rose (Rosa roxburghii) (Fruit) Extract50mg
Disputed

Ginseng-type herbs are studied for energy, stress and recovery; results are mixed and many studies are small.

Bioperine Black Pepper (Piper nigrum) (Fruit) Extract (95% Piperine)5mg
~ Likely

Black pepper extract that can increase absorption of some compounds, such as curcumin.

Huperzine A (Huperzia serrata) (Leaf)100mcg
Disputed

A plant compound that slows the breakdown of a memory messenger; evidence in healthy people is limited, and it shouldn't be taken long-term without advice.

Quality standards

What these mean →

0 of 5 standards Pello tracks · No third-party banned-substance testing listed

Tested for sport

  • NSF Certified for Sport
  • Informed Sport
  • Cologne List

Food & sourcing

  • USDA Organic
  • Non-GMO Project Verified

Diet claims

  • Vegan: not stated

    Brand or retailer label claim, not a certification.

  • Gluten-free: yes

    Brand or retailer label claim. In the US a gluten-free label means under 20 ppm gluten.

  • Dairy-free: yes

    From the allergen list, where one is available.

Certifications are as listed on the product's page at The Feed. NSF Certified for Sport is also checked against NSF's own database. Certifications can lapse, so check the certifier's search before you rely on one, especially if you're drug tested.

Transparency & Sources

85
High transparency
0 certifications · 6 reviews at The Feed
The Feed
6 reviewsmedium

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