Six Star Testosterone Booster Review 2025 — Budget testosterone boosters are everywhere, but very few have a clear, plausible mechanism and human data behind at least one core ingredient. Six Star Testosterone Booster is positioned as a simple, inexpensive way to support free testosterone and training performance without hormones or prohormones. In this evidence-based review, we unpack how it works, what’s in it (and why that matters), what the science says about boron for men, how to use it safely, and smart alternatives if you need something stronger.
Quick Summary
Rating: ⭐⭐⭐⭐☆ (4.0/5 for value)
Best for: Men seeking a low-cost, entry-level way to support free testosterone and training recovery
Use: 2 capsules, twice daily (total 4/day) with meals; see cycling notes below
Primary mechanism:Boron citrate (a clinically studied trace mineral) that may increase free testosterone and modulate inflammatory markers within 7 days in healthy men (PMID: 21129941)
Price: Often under $10 per 60-count bottle (≈15 days at the label dose)
What Is Six Star Testosterone Booster?
Six Star Testosterone Booster is a non-hormonal dietary supplement designed to support male vitality and training outcomes. The modern formulations focus on boron citrate—a bioavailable form of boron—sometimes combined with supportive botanicals depending on the batch/retailer. Unlike anabolic agents, it does not add hormones; instead, it aims to nudge the body’s own regulation of free testosterone and stress responses.
You’ll frequently find it at mainstream retailers (Walmart, Walgreens) and online stores, which is part of its appeal: availability and price. The trade-off is that a 60-count bottle generally lasts only ~15 days at the full serving (4 caps/day).
How Does It Work?
The current Six Star concept hinges on two well-established pillars:
Boron for free testosterone & inflammation modulation. In a small but notable human study, 10 mg/day of boron for just 7 days increased free testosterone and decreased estradiol and hs-CRP (an inflammation marker) in healthy men (PMID: 21129941). Free testosterone—not just total—drives many benefits men actually feel.
Training stress & hormone balance. Intense exercise shifts the testosterone:cortisol ratio. Supporting micronutrients that affect steroid hormone transport/binding (e.g., boron) and inflammation may help maintain a more favorable environment for muscle retention, recovery, and libido (PMID: 21129941; review on boron & human health: PMID: 29552023).
Key point: This is not a steroid or prohormone. Benefits—if you respond—tend to be modest and build with consistency, training, and sleep.
Ingredients & Label Logic
Six Star keeps the panel lean, with boron citrate (supplying elemental boron) as the hero ingredient. Boron is naturally present in foods such as apples, grapes, plums, avocados, legumes, and nuts; supplemental intakes used in studies are typically 3–10 mg/day (PMID: 29552023).
Why boron?
Free testosterone support: Short-term boron supplementation has been shown to raise free testosterone and reduce estradiol in men over 7 days (10 mg/day), likely via effects on steroid hormone metabolism and binding proteins (PMID: 21129941).
Inflammation markers: The same trial found lower hs-CRP after a week (PMID: 21129941), which may support recovery quality for hard-training athletes.
General health: Boron is a trace element with roles in bone, cognitive function, and steroid hormone dynamics; insufficiency has been linked to adverse effects (PMID: 29552023).
What about other “test boosters” (fenugreek, ashwagandha, D-aspartic acid)? You won’t typically find those in Six Star’s minimalist boron-centric SKUs. If you want a broader, multi-pathway formula (libido, stress, strength), see the Alternatives section below.
What the Science Says (Human Data)
Below are the most “load-bearing” pieces of evidence informing why boron shows up in modern test-support products:
7-day human trial (men): 10 mg/day boron increased free testosterone, lowered estradiol and hs-CRP; changes observed within a week (PMID: 21129941).
Review of boron & human health: Summarizes roles in bone, cognition, and steroid hormone metabolism; suggests practical intakes of 1–3 mg/day with higher intakes used in studies (PMID: 29552023).
Reality check: These studies are not specific to the Six Star branded product; they evaluate boron itself. That’s still valuable: the product claims align with the best-known mechanism in its formula.
Who Is Six Star Testosterone Booster Best For?
Based on price, simplicity, and the mechanistic target, it suits:
Men in their 20s–50s who want an entry-level way to support free testosterone, recovery, and libido
Budget-minded users willing to be consistent for at least 2–4 weeks
People who prefer simple panels over multi-herb stacks
It’s less ideal if you expect rapid strength jumps, physique changes without training, or stimulant-like energy. For those goals, either combine with intelligent programming (progressive overload, high-protein diet) or consider a broader formula.
How to Use It (Dosing, Timing, Cycling)
Label dose: 2 capsules, twice daily (total of 4) with food and water.
Timing: Split AM/PM or pre- and post-workout with meals to aid absorption.
Consistency: Most users should allow 2–4 weeks for noticeable benefits; some may feel a difference earlier.
Cycling: A practical pattern is 2 weeks on / 1 week off or 8 weeks on / 2 weeks off, based on user reports and general micronutrient cycling practices. Always follow the product label and your clinician’s advice.
Tip: Pair with 7–8 hours of sleep, resistance training (3–5x/week), and a Mediterranean-leaning diet to maximize natural androgen signaling and recovery.
Pros & Cons
Pros
Clinically plausible core: Boron has human data supporting increases in free testosterone and reductions in hs-CRP within 7 days (PMID: 21129941).
Simple, non-hormonal: No prohormones or banned substances; suitable for beginners.
Very inexpensive: Often <$10/bottle; easy to trial without big risk.
Widely available: Mainstream retailers + online.
Cons
Short supply per bottle: At 4 caps/day, 60 caps ≈ 15 days.
Modest expectations: Effects are generally subtle without lifestyle alignment.
Formula variability: Some listings change minor co-ingredients; always read your specific label.
Safety & Side Effects
Boron is a trace mineral and generally well-tolerated at typical supplemental intakes used in studies (e.g., 3–10 mg/day). The U.S. tolerable upper intake level (UL) for adults is often cited at 20 mg/day from all sources (diet + supplements) (PMID: 29552023).
Potential side effects (uncommon):
Mild GI upset if taken without food
Headache in sensitive users
Who should not take it without medical guidance?
Individuals with kidney disease or on medications affecting mineral handling
Those on hormone therapy or fertility treatment
Anyone with a history of hormone-sensitive cancers—discuss with your physician first
Interactions: If you use prescription medications (especially for the heart, kidneys, or hormones), get medical clearance before starting any supplement.
Real-World Results: What to Expect
Most users who respond report (after consistent use):
Slight uptick in drive and training motivation
More reliable recovery between sessions
Subtle improvements in libido and morning vitality
Notice that these are incremental changes. They tend to be most meaningful when you’re already doing the big rocks—sleep, protein, training, stress management.
Price, Value & Where to Buy
A 60-count bottle commonly sells for under $10 (promos can drop lower). At the label dose, that’s ~15 days of use (~$0.60/day). It’s sold online (major e-commerce sites) and in big-box retailers like Walmart and Walgreens.
Shopping tips:
Check the Supplement Facts panel for boron source and amount per serving.
Avoid “free trial” offers with rebill traps; buy from reputable sellers with clear return policies.
If you want a true month, budget for two bottles at the label dose.
Best Alternatives (If You Need More Than Boron)
Fenugreek-based blends: Popular for libido and gym performance; look for standardized extracts (e.g., 50% saponins). Evidence varies by brand.
Ashwagandha (KSM-66 or Sensoril): Stress resilience, strength, and testosterone support in several trials (e.g., resistance training contexts; see PMID: 26609282).
Transparent multi-ingredient “test” formulas: If you want a one-stop stack (D-aspartic acid, zinc, magnesium, fenugreek/ashwagandha), choose brands that disclose exact doses and cite human studies on the full formula.
Stack idea: If you like Six Star’s simplicity and price, you can pair it with standalone ashwagandha (for stress) or a creatine monohydrate (for strength) to cover more performance bases.
Final Verdict
Six Star Testosterone Booster is one of the best budget “first tries” in the category because it centers a trace mineral—boron—with human data showing short-term increases in free testosterone and reductions in hs-CRP (PMID: 21129941). It’s not a miracle pill, but when paired with real training, protein, and sleep, it can be a noticeable nudge for some men.
If you need stronger libido or stress support, graduate to a transparent, clinically dosed multi-ingredient formula. If you want the lowest cost per day to test the waters, this is hard to beat.
Frequently Asked Questions
Does Six Star Testosterone Booster really raise testosterone?
Its core ingredient (boron) has human data showing increases in free testosterone after 7 days at 10 mg/day (PMID: 21129941). Results vary by individual, diet, sleep, and training load.
How long before I notice anything?
Some users notice subtle changes within 1–2 weeks. Plan on 2–4 weeks of consistent use to judge fairly.
Is it safe to use long term?
For healthy adults staying well below the boron UL of ~20 mg/day (all sources), it’s generally well-tolerated (PMID: 29552023). Always follow label directions and speak with your clinician if you have medical conditions or take prescriptions.
Can it replace sleep, diet, or training?
No supplement can compensate for poor sleep, low protein, or inconsistent training. Think of it as a supportive add-on.
Do I need to cycle it?
Many lifters prefer 2 weeks on / 1 week off or 8 weeks on / 2 weeks off. There’s no single rule—follow the label and talk to your clinician, especially if stacking with other products.
Medical disclaimer: This article is for informational purposes only and does not substitute professional medical advice. Always consult a qualified healthcare provider before starting any supplement, especially if you take prescription medications or have a medical condition.
I am interested in all aspects related to mens's health, in particular sexual health as we age. In my spare time I like to train with weights since that's a great way to boost your testosterone levels and feel overall happy. It is never too late to change your lifestyle into something better. Small positive changes will accumulate over time and bring you happiness in life. You can find my opinions on supplements and devices for men on this website, and also from users such as yourself. Remember to do your research before buying anything.
