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Built Different Than Most Testosterone Boosters

A premium formula built around standardized, clinically-studied ingredients — chosen for what actually matters, not what looks good on a label.

Vitality & Drive*Recovery & Performance*Healthy Testosterone Support*
  • 500 mg clinically-studied TestoSurge® fenugreek extract

    Standardized ashwagandha (5% withanolides) & shilajit (50% fulvic acid)

    Every ingredient, form & dose disclosed — no proprietary blends

    Third-party tested & manufactured in-house in the USA

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Just $0.87 per day

🚚 Ships within 1 business day · Free shipping on subscriptions & the 4-bottle bundle

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Standardized Extracts Manufactured In-House Made in the USA
I've tried other testosterone boosters and never noticed a thing. This one is different — stronger, better libido, more energized, and my T levels tested the highest they've ever been.Marcus M. · Powerlifter, Philadelphia
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Standardized Extracts

HPLC-verified actives

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Clinically Studied

500mg TestoSurge®

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Disclosed Doses

No proprietary blends

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Made In-House

Total quality control

Third-Party Tested

Verified every batch

The Category Problem

Most Boosters Look Better on the Label Than They Perform

The testosterone category is full of proprietary blends, underdosed formulas, and cheap ingredient forms. We built this differently.

01

Cheap Ingredient Forms

Generic, non-standardized inputs that look the same on a label but perform very differently.

02

Proprietary Blends

Hidden dosages obscure what's actually inside — and how much is doing anything.

03

Hype Over Formulation

Loud marketing built around the label rather than the ingredient quality behind it.

04

Low-Quality Standardization

Without verified standardization, active compounds are inconsistent batch to batch.

The Difference

Premium Testosterone Support vs. Typical Boosters

Built on ingredient quality and transparency — not label hype.

Swipe to compare →

Premium T-SupportTypical Boosters
Clinically-studied TestoSurge® 500 mg
Standardized extracts (HPLC)Rarely
Fully disclosed dosagesProprietary blends
Premium ingredient forms chelatedCheap oxides
Third-party tested
Manufactured in-houseWhite-labeled
Real Results

What Men Are Saying

Verified reviews from men who care about ingredient quality — not hype.

Customer Reviews

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Sourcing & Standardization

Premium Ingredients. Carefully Chosen Forms.

Sourcing, standardization, and extraction method matter far more than most labels admit.

Ingredient Spotlight · TestoSurge®

Clinically Studied for Testosterone Support

TestoSurge® is a potent, highly-concentrated fenugreek extract. Clinical studies show 500 mg of daily TestoSurge® supplementation significantly impacted body fat percentage, total testosterone, and bioavailable testosterone — with effects noticeable within 10 hours of the first dose.*

Fenugreek extract500 mg dailyClinically studied
Ingredient Spotlight · Ashwagandha

Not All Ashwagandha Is Created Equal

Many products use inexpensive ashwagandha powders with little standardization. We chose a premium root-only extract (250 mg) standardized to 5% withanolides and HPLC-tested for quality and consistency.

Root-only · 250 mg5% withanolidesHPLC verified
Ingredient Spotlight · Shilajit

Purified & Standardized Shilajit

Shilajit quality varies enormously. We use a premium HPLC-tested shilajit (100 mg) standardized to 50% fulvic acid — selected for purity, consistency, and ingredient quality. No shortcuts, no mystery sourcing.

Purified · 100 mg50% fulvic acidHPLC tested
Inside the Formula

Every Ingredient. Every Form. Disclosed.

No proprietary blends. No mystery dosages. Every ingredient listed with its exact form and standardization.

TestoSurge®Branded fenugreek extract500 mg

Clinically-researched ingredient supporting male vitality and performance.*

AshwagandhaRoot extract · 5% withanolides250 mg

Supports stress resilience, recovery, and healthy testosterone. HPLC verified.*

ShilajitPurified · 50% fulvic acid100 mg

Mineral-rich support for vitality and endurance.*

ZincGluconate

An essential mineral that supports healthy testosterone production and immune function.*

MagnesiumGlycinate

Supports recovery, sleep, and hormone balance. Gentle, well-absorbed.*

Vitamin D3Cholecalciferol

Foundational for hormonal and immune health.*

BoronBoron glycinate

Supports free testosterone and mineral metabolism.*

Vitamin B6+ Piperine (95%) for absorption

Supports energy metabolism; piperine optimizes nutrient bioavailability.*

What's NOT In It

  • Proprietary blends
  • Hidden dosages
  • Cheap oxide minerals
  • Synthetic hormones
  • Banned substances
  • Artificial fillers
  • Under-dosing
  • Mystery sourcing

Supplement Facts

Serving Size: 2 Capsules · 30 Servings Per Container
TestoSurge® (fenugreek extract)500 mg
Ashwagandha Root Extract (5% withanolides)250 mg
Magnesium (glycinate)150 mg
Shilajit (50% fulvic acid · HPLC)100 mg
Vitamin B6 (pyridoxine HCl)20 mg
Zinc (gluconate)15 mg
Boron (glycinate)5 mg
Black Pepper Extract (95% piperine)5 mg
Vitamin D31000 IU (25 mcg)
† Daily Value not established. Other ingredients: vegetable capsule (hypromellose and water).
What You May Notice

Built to Support How You Feel, Perform & Recover

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Better Recovery

Support for training recovery, day to day.*

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Vitality & Drive

Support for everyday drive and vitality.*

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Consistent Energy

Support for steadier, more consistent energy.*

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Stress Resilience

Support for resilience to everyday stress.*

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Performance Support

Support for training and performance.*

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Sense of Well-Being

Support for an overall sense of well-being.*

From the Founder · Why We Built This

Why We Built This Formula

"The result is a formula I'm genuinely proud to put my name on."

I'd spent years frustrated by the testosterone category — cheap raw materials, opaque proprietary blends, and exaggerated marketing built around the bottle rather than what was inside it.

So we partnered with one of the leading testosterone researchers in the world and rebuilt the formula from the ingredient form up. Standardized extracts. Disclosed dosages. Forms chosen because they actually matter — not because they were cheap to source.

Connor SouthworthFounder of 4 Gauge · Formulator
45-Day
Guarantee

Try It Risk-Free

If you're not completely satisfied, we'll make it right. No hoops. No hassle.

Easy Returns💵 Money-Back Promise🙂 Real Human Support
How To Use

Simple. Daily. Consistent.

01

Take Daily With Food

Take your daily serving with a meal for best absorption.

02

Same Time Each Day

Build it into your routine — morning or evening, consistently.

03

Give It a Full Cycle

Botanical support builds over weeks. Stay consistent to feel the difference.

04

Stack It

Pairs cleanly with 4 Gauge Pre-Workout and PowerPhase Creatine.

What To Expect

Support That Builds Over Time

Botanical testosterone support compounds with consistency. Here's a realistic timeline.*

First Days

Getting Started

TestoSurge® has shown effects within 10 hours of the first dose in clinical studies. Early days are about building the daily habit.*

Weeks 2–4

Settling In

Many men report steadier energy, better recovery, and improved drive as standardized actives build up.*

Weeks 6–8+

Full Support

The formula is designed for consistent, long-term daily support of vitality, performance, and healthy testosterone.*

Stack Your System

Built to Work With Your Routine

Three products. One complete daily system.

Before Workout

4 Gauge Pre-Workout

Clean energy and focus to push harder during every session.

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Premium Testosterone Support | Natural Testosterone Booster | 4 Gauge
Daily

Premium T-Support

Daily support for vitality, recovery, and healthy testosterone.*

Questions

Questions, Answered

Premium Testosterone Support is a dietary supplement designed to support the body's natural testosterone production using vitamins, minerals, and standardized botanical extracts. It does not contain testosterone, synthetic hormones, or prescription medications like testosterone replacement therapy (TRT).
No. It contains no steroids, prohormones, or synthetic hormones — only vitamins, minerals, and standardized botanical extracts intended to support your body's own natural production.*
No. It's a dietary supplement available without a prescription. As always, if you have a medical condition or take medication, check with your healthcare provider first.
TestoSurge® has shown effects within 10 hours of the first dose in clinical studies, but botanical support builds with consistency. Most men give it a full cycle of 4–8 weeks of daily use.*
Yes. It's designed to fit alongside 4 Gauge Pre-Workout and PowerPhase Creatine as part of a daily system.
We use standardized, HPLC-verified extracts and premium mineral forms (chelates) chosen for bioavailability and consistency — not the cheapest inputs that look identical on a label but perform very differently.
Yes. It's formulated as a daily support supplement for consistent, long-term use.
If you're on TRT or any medication, talk with your healthcare provider before adding any new supplement so it fits your specific situation.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary.

Premium Formulation. No Corners Cut.

Built for men who care about vitality, performance, recovery, and long-term health — backed by a 45-day money-back guarantee.

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