









T-REDLINE™ - Natural Testosterone Booster - 120 Capsules, 30-Day Supply
The Only Clinically-Backed, Natural Testosterone Support You’ll Ever Need
Testosterone drives far more than just muscles and libido—it’s the biological engine behind your energy, focus, strength, resilience, and confidence.
T-REDLINE™ is designed to fuel every one of these critical systems.
- Boost results from your workouts
- Maintain consistent, all-day energy levels
- Enhance libido and masculine drive
- Elevate semen quality and reproductive health
- Improve sleep quality for better recovery
- Support a healthy, efficient metabolism
- Boost resilience to stress and cortisol
- Sharpen focus and decision-making
2-3 Business Days Delivery
3-6 Business Days Delivery (Ships From USA)
Partnered With Leading Researchers & Institutions
U.S. Independent Lab Test For Purity and Toxins

Manufactured in FDA-Registered and Audited Facility
Results or We Make It Right. No Excuses.

In Pursuit of Science-Backed Solutions for Peak Masculinity

Welcome to the MANFUELED Brotherhood.
Here to Push You Further—and See You Win
Formulated by nutritional scientist, T-REDLINE™ helps support multiple, complementary biological pathways for enhanced male vitality and vigor. That’s why so many customers facing multiple deficiencies or biological bottlenecks experience powerful improvements.
Many first-time T-REDLINE™ users have noted feeling increased energy, focus, and a greater sense of overall well-being within the initial weeks of use.
Take 4 capsules daily after your first meal.
T-REDLINE™ contains clinically tested, 100% natural ingredients with no synthetic or hidden chemicals.
We use premium, standardized botanical extracts to ensure both efficacy and safety.
Always consult your doctor if you have any medical concerns.
We are so convinced of the effects of our product that you can try it risk-free for 60 days. Without giving any reason, you can take advantage of our 'no questions asked' money back guarantee.
Try our product and experience the difference yourself.
150+ clinical studies
supporting ingredients efficacy
100%
natural ingredients
$2
per day investment in your health
Testosterone Decline is REAL. T-REDLINE made me realize how much low testosterone was holding me back. I feel stronger, more energized, and like my confident self again.

173% Testosterone Increase*
Across multiple biological pathways — clinically validated in men with low baseline levels.
138% Strength Increase*
Documented improvement in bench press performance during resistance training.
91% Libido Improvement*
Measured gains in sexual desire and performance in clinical research.
*Based on clinical studies of individual ingredients. Results may vary. Men with lower baseline testosterone experienced the greatest improvements.
Trusted by Over 16,000+ Men
Mike, 38
- "This is the first male supplement that actually delivered. Energy and focus? Next level."
Joshua, 44
"T-REDLINE changed the game for me. More energy, better workouts, and my confidence is back."
John, 42
"My energy’s through the roof, and I feel unstoppable."
Your Questions Answered
- Clinically Proven Ingredients: We use premium-standardized extracts for real results. It doesn't get any more guaranteed than this.
- No Filler, No BS: Many supplements underdose key ingredients. We don’t.
- Synergistic Formula: Unlike limited or single-ingredient products, T-REDLINE™ combines multiple powerful science-backed compounds.
- 100% Natural: Unlike synthetic hormone treatments or injections, T-REDLINE™ relies entirely on natural, clinically studied ingredients.
Increases in testosterone support efforts in the gym. Many customers report total testosterone reading increases of a couple of hunderds points, which can support lean muscle, faster recovery, and pushing through intense workouts.
Healthy T levels lead to enhanced libido, stamina, and overall confidence.
T-REDLINE™ helps support male health, vitality and vigor.
Many customers report feeling more energized and in control—both physically and mentally.
Yes. T-REDLINE™ is designed for men 30+, 40+, 50+ who want to stay sharp, strong, and energized—whether at work, in the gym, or leading your family with strength and purpose.
Every man’s battle with low T hits differently—and at different times.
What matters is taking action when you feel it.
T-REDLINE™ is made from natural ingredients. It’s safe for consistent daily use.
Cycling any supplement can help ensure your body continues to respond optimally.
You can cycle by using T-REDLINE™ for 12-16 weeks (3-4 bottles), followed by a 2–4 week break before restarting. This allows your body to reset.
Our supplements are 100% natural, Halal and independently tested and certified by:
- Eurofins
- BRC
- HACCP
This means that our products are safe for everyday use, but can also be used in professional sports.
Made in the USA in an FDA-registered, GMP-certified facility for quality you can trust.
No. We use adaptogenic herbs like Ashwagandha and Tongkat Ali, which help regulate stress and energy levels without the highs and lows of stimulants.
Yes. T-REDLINE™ pairs well with protein, creatine, pre-workouts, vitamins, and other natural health supplements.
If you're taking any prescription medications, have underlying health conditions, or are being treated for hormonal imbalances, it's essential to consult your healthcare provider before starting T-REDLINE™. This ensures there are no potential interactions and that it aligns with your overall health plan.
And why pay extra for standardized extracts?
Most people compare prices with Amazun where:
- The majority of reviews are fake or incentivized. (“Hello friend, give 5 stars and get a gift card”)
- Products thrive NOT by quality but by sheer volume. The more units moved, the more the marketplace gets paid.
As a result, these supplements are notorious with:
- Underdosed ingredients
- Zero focus on bioavailability
- Zero focus on ingredient extraction methods and standardization (potency)
Example:
1000 mg of Ashwagandha without standardized extraction process can be about as effective as eating cardboard. You simply don’t know the quality of the extract you’re getting. And not only that—you’re gambling with your health. You could be getting the good stuff—OR not.
Ingredients and dosages in T-REDLINE™ are formulated for clinical effect—based on actual research studies, not marketing hype. Combining our extra-potent standardized extracts into one formula lets us optimize costs through smart economies of scale.
Not all supplements are built equal. Neither are men. Cheap shortcuts cost more in the long run.
No. Supplements don’t make alphas.
Doing hard things—and not quitting—does.
Confidence is built by keeping promises to yourself.
Start with the basics: real nutrition and real sleep.
Yeah, in today’s world, even that’s considered “hard.” But that’s exactly why it matters.
Scientific References
- Talbott, S.M., et al. (2013). Tongkat Ali increased testosterone by 37% and reduced cortisol by 16% in stressed men over 4 weeks. Journal of the International Society of Sports Nutrition, 10(1), 28.
https://jissn.biomedcentral.com/articles/10.1186/1550-2783-10-28 - Henkel, R.R., et al. (2014). Tongkat Ali improved libido, strength, and mood in older adults. Phytotherapy Research, 28(4), 544–550.
https://pubmed.ncbi.nlm.nih.gov/23512278 - Ismail, S.B., et al. (2020). 6-month Tongkat Ali trial increased testosterone in men with late-onset hypogonadism. Maturitas, 135, 104–110.
https://www.sciencedirect.com/science/article/abs/pii/S0378512220304497 - Ambiye, V.R., et al. (2013). Ashwagandha led to a 32% increase in serum testosterone. Evidence-Based Complementary and Alternative Medicine, 2013, 571420.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4266739 - Wankhede, S., et al. (2015). KSM-66® Ashwagandha boosted testosterone by 15% and strength by 138% in 8 weeks. JISSN, 12, 43.
https://jissn.biomedcentral.com/articles/10.1186/s12970-015-0104-9 - Lopresti, A.L., et al. (2019). Ashwagandha reduced cortisol by 27.9%. Medicine (Baltimore), 98(37), e17186.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6750294 - Ahmad, M.K., et al. (2022). Ashwagandha improved sexual well-being and increased testosterone in healthy men. Health Science Reports, 5(4), e741.
https://onlinelibrary.wiley.com/doi/10.1002/hsr2.741 - Lopresti, A.L., & Drummond, P.D. (2015). Ashwagandha improved stress and anxiety. Journal of Ethnopharmacology, 174, 89–96.
https://www.sciencedirect.com/science/article/abs/pii/S0378874115300335 - Yakubu, M.T., et al. (2005). Fadogia Agrestis increased testosterone and libido in rats. Asian Journal of Andrology, 7(4), 399–404.
https://pubmed.ncbi.nlm.nih.gov/16065397 - Oluyemi, J.A., et al. (2007). Fadogia extract boosted testosterone and sexual behavior in animal trials. International Journal of Pharmacology, 3(6), 574–577.
https://pubmed.ncbi.nlm.nih.gov/16281088 - Slama, T.G., et al. (2021). Plant ecdysteroids (in Fadogia) show anabolic effects. Biomedicines, 9(5), 492.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8144247 - Naghii, M.R., et al. (2011). Boron increased free testosterone by 28% and lowered estrogen by 39% in 7 days. Journal of Trace Elements in Medicine and Biology, 25(1), 54–58.
https://www.sciencedirect.com/science/article/abs/pii/S0946672X10001148 - Pizzorno, L. (2015). Comprehensive review on boron’s effect on testosterone and inflammation. Integrative Medicine, 14(4), 35–48.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4712861 - Pilz, S., et al. (2011). Vitamin D supplementation increased testosterone by 25% in 12 months. Hormone and Metabolic Research, 43(3), 223–225.
https://pubmed.ncbi.nlm.nih.gov/21154195 - Nimptsch, K., et al. (2012). Positive correlation between vitamin D and testosterone levels. Clinical Endocrinology, 77(1), 106–112.
https://pubmed.ncbi.nlm.nih.gov/22093177 - Netter, A., et al. (1992). Zinc restored testosterone and improved sperm count. Archives of Andrology, 28(1), 15–22.
https://pubmed.ncbi.nlm.nih.gov/1553893 - Kilic, M. (2007). Zinc supplementation protected T levels post-exercise. Neuro Endocrinology Letters, 28(5), 681–685.
https://pubmed.ncbi.nlm.nih.gov/17984965 - Fallah, A., et al. (2022). Meta-analysis confirmed serum zinc correlates with testosterone. J Trace Elem Med Biol, 69, 126889.
https://www.sciencedirect.com/science/article/abs/pii/S0946672X22002048 - Cinar, V., et al. (2011). Magnesium increased free testosterone in both sedentary and active men. Biological Trace Element Research, 140(1), 18–23.
https://pubmed.ncbi.nlm.nih.gov/20190350 - Maggio, M., et al. (2014). Magnesium and testosterone interplay impacts physical performance. International Journal of Endocrinology, 2014, 525249.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3912660 - Rantala, M.J., et al. (2013). Women preferred the scent of high-testosterone men during ovulation. Royal Society B: Biological Sciences.
https://royalsocietypublishing.org/doi/10.1098/rspb.2013.0660 - Zinc meta-analysis, Scientific Reports (2016). Zinc levels in seminal plasma correlated with male fertility. https://doi.org/10.1038/srep22386