Is Lean worth buying?

Lean has a Verify Influencers trust score of 69/100 based on ingredient quality, clinical evidence, and third-party testing.

What is the trust score for Lean?

Lean scored 69 out of 100 in our science-backed analysis, which evaluates ingredient dosages against clinical literature and manufacturing transparency.

Supplements

Lean

69/100 science score
$59.95 price
Promoted by Ben Greenfield

Overview

Lean earns an Average score due to modest effectiveness from low-dose ingredients with only preliminary support for weight management. While meta-analyses confirm small benefits from L-Carnitine (~1kg loss over 8-12 weeks at 2g doses) and Forskolin (one RCT: 2.3% body fat drop at 250mg 10% extract), product's doses (170mg carnitine equiv., 25mg forskolin) fall short of clinical thresholds, limiting real-world impact. Capsaicin/Grains of Paradise add minor thermogenesis (e.g., 50kcal/day increase

Key strengths

Informed Choice certified for purity/banned substances
Transparent dosing, no proprietary blends
Affordable at ~$0.70/serving; non-stim for anytime use
Positive reviews for appetite control/thermogenesis

Our analysis

Rule One Lean is a safe, quality non-stim option for mild appetite/thermogenic support, but low doses limit effectiveness for significant weight loss. Best paired with diet/exercise. Average rating reflects balanced profile amid weak evidence.

Frequently asked questions

Is Lean worth buying?: Lean has a Verify Influencers trust score of 69/100 based on ingredient quality, clinical evidence, and third-party testing.
What is the trust score for Lean?: Lean scored 69 out of 100 in our science-backed analysis, which evaluates ingredient dosages against clinical literature and manufacturing transparency.

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