Nugenix Free Testosterone Booster
Nugenix / Nugenix T-Boost, Adaptive Health (Wellful, Inc.)
Evidence grade 2 of 5, Thin. Read how the Atlas grades evidence.
The written rationale for this grade is still being prepared.
- FDA
- Dietary supplement (not FDA-evaluated for efficacy)
Reference only. Not medical advice.
What can go wrong
The free-trial / autoship funnel has drawn watchdog criticism (TINA.org): a 'complimentary' bottle costs shipping, then converts to a recurring charge reported around $74.98 every 30 days unless cancelled within ~18 days. Fenugreek can interact with anticoagulants and affect blood sugar.
This is something to take to a clinician. The Atlas can tell you what is known about nugenix free testosterone booster in general. It cannot tell you what is happening in your body, and the difference matters most for exactly the symptoms that bring people to this page.
Nugenix is the most heavily marketed retail testosterone-booster brand in the United States, developed by Direct Digital, LLC (rebranded Adaptive Health in 2017, now under parent Wellful, Inc.). The original Free Testosterone formula was built around Testofen, a Gencor-branded fenugreek extract, plus L-citrulline malate, tribulus, zinc, and B-vitamins; the current 'T-Boost' reformulation replaces Testofen with Tesnor (a pomegranate + cocoa extract). Nugenix states the product supports free testosterone; Ēnel does not endorse that claim.
The TV-advertised category leader, built around a single fenugreek extract.
What people take it for
These are the reasons people give for taking it. They are not effects it has been shown to have.
What people get wrong
Often said'Clinically proven' to boost testosterone
ActuallyThe Testofen ingredient has company-funded trials; the finished Nugenix product was never tested as a complete formula. The self-regulatory body ERSP recommended Nugenix discontinue certain claims in 2014, and Nugenix was a covered product in the ~$7M Robbins v. Gencor Testofen settlement (2018).
Who profits, and who pushes back
Nobody is named here yet, because we have not done that work on this entry. Read that as unfinished. Somebody almost certainly sells this, and somebody almost certainly disputes it. Assume both until we have checked.
Revenue flows to Adaptive Health/Wellful via retail (GNC, grocery, Amazon) and a direct autoship subscription. The recurring-billing model is the core economic engine and the main consumer-protection concern.
At a glance
- Maker
- Direct Digital / Adaptive Health (Wellful)
- Headline ingredient
- Testofen fenugreek (original); Tesnor (current)
- Serving
- 3 capsules daily
- Endorser
- Frank Thomas (paid)
What this entry does not yet cover
What follows is unfinished work on our side, not a finding about Nugenix Free Testosterone Booster. A short entry is not a safe entry.
- Timeline. We have not built the dated record of research and regulatory events.
- Cost and market. We have not documented what it sells for or who sells it.
- Supply chain. We have not mapped where it is made.
- Who uses it. We have not documented the user groups.
- What could change. No forward-looking summary yet.
- How it compares. We have not set it against the alternatives.
- Children and teenagers. We have not checked what is known about younger people.
- Where we land. We have not taken a position on this yet.
Sources
The studies below are named and described, but not linked. You cannot open them from here and check our reading against them, which means this page is our summary of the literature rather than a document you can verify. Weigh it accordingly until the links exist.
The studies that matter
Testofen libido RCT (Gencor-funded)2011
600 mg/day Testofen for 6 weeks reported improved libido scores in healthy men, an ingredient study, not a test of the Nugenix formula