Editorial Review Team
📖 Table of Contents
1. Quick Overview · 2. Introduction · 3. What Is BoostSteelX? · 4. The Problem · 5. How It Works · 6. Ingredients · 7. Benefits · 8. Scam or Legit? · 9. Who Should Use It · 10. Safety · 11. How to Use · 12. Results Timeline · 13. Customer Reviews · 14. Pricing · 15. Where to Buy · 16. Pros & Cons · 17. FAQ · 18. Final Verdict
⚡ Quick Verdict
✅ Targeted male vitality formula with traditionally-used natural ingredients
✅ Made in USA in GMP-certified, FDA-registered facility
✅ 60-day money-back guarantee — low risk to try
BoostSteelX Review 2026: Quick Overview
| Label | Value |
|---|---|
| Product Name | BoostSteelX |
| Formula Type | Vegetable capsule |
| Purpose | Supports healthy testosterone levels,男性 vitality, stamina, and overall male performance |
| Key Benefits | • Promotes healthy testosterone production • Supports energy, stamina, and physical performance • Enhances libido and male vitality • Reduces fatigue and supports recovery • Provides antioxidant protection for reproductive health |
| How to Use | Take 2 capsules daily with a meal and a glass of water |
| Side Effects | Minimal — mild digestive upset possible in sensitive individuals. Consult a doctor if you have hormone-sensitive conditions, take blood thinners, or have a history of prostate issues. |
| Price | 1 Bottle: $69 3 Bottles: $177 ($59/bottle) 6 Bottles: $294 ($49/bottle) |
| Guarantee | 60-Day Money-Back Guarantee |
| Availability | Official website only — not on Amazon or in retail stores |
| Official Site | ✅ Visit Official Site → |
Introduction
You wake up feeling tired. The morning energy you used to have feels like a distant memory. Your workouts lack the same punch. Your drive — in more ways than one — isn’t what it used to be. And you wonder if this is just what getting older feels like.
For many men, these changes creep in slowly. At first, you barely notice. Then one day, you realize that your stamina, your confidence, and your overall sense of vitality have taken a noticeable hit. The culprit is often hormonal. Testosterone levels naturally decline with age, and that decline can affect everything from muscle mass to mood to libido. It is a common problem, but that doesn’t make it any easier to deal with.
That’s where BoostSteelX Review 2026 comes in. This article takes a thorough, honest look at BoostSteelX, a dietary supplement formulated to support male vitality, testosterone production, and overall performance. We examine the ingredients, the science behind them, the pricing, and what real customers are saying. Our goal is to give you balanced, useful information so you can make an informed decision.
If you’ve been searching for a natural way to reclaim your edge, keep reading. This review covers everything you need to know.
What Is BoostSteelX?
BoostSteelX is a dietary supplement designed to support male hormonal health and vitality. It comes in capsule form. The formula combines a range of natural ingredients that have been traditionally used in men’s health formulations. These include herbs, minerals, and amino acids that play various roles in testosterone production, energy metabolism, and reproductive health.
The manufacturer positions BoostSteelX as a comprehensive solution for men who want to maintain their edge as they age. It is not a steroid and it does not contain synthetic hormones. Instead, it aims to support the body’s own natural hormone production pathways. The thinking is simple. Give the body the nutrients it needs to produce testosterone efficiently, and the body will respond by optimizing its own levels.
Each bottle contains a 30-day supply. The recommended dose is two capsules per day. The product is manufactured in the United States at a GMP-certified, FDA-registered facility. It is non-GMO, gluten-free, and free from artificial additives. These quality standards are important for any supplement, and they add to the credibility of the product.
Like many specialized men’s health supplements, BoostSteelX is sold exclusively through its official website. This direct-to-consumer model helps the company ensure product freshness and quality control. It also allows them to offer competitive pricing on bulk packages.
The Problem It Targets
Here’s a reality many men face. After age 30, testosterone levels begin to decline at a rate of about 1% per year. This is a natural part of aging. But for some men, the decline is steeper and more noticeable. When testosterone drops significantly, the effects can be wide-ranging.
Low energy tops the list. You might find yourself feeling sluggish even after a full night’s sleep. Your motivation to exercise or tackle projects may wane. Muscle mass becomes harder to maintain, and body fat tends to accumulate. Libido often drops. Some men also experience mood changes, irritability, or a general sense of having lost their spark.
Many men turn to prescription testosterone replacement therapy (TRT). TRT is effective, but it comes with significant downsides. It requires a doctor’s supervision, frequent blood tests, and ongoing costs. It can also cause side effects like infertility, sleep apnea, and increased red blood cell count. Other men try over-the-counter testosterone boosters from drugstores, but those often contain underdosed or poorly-absorbed ingredients.
BoostSteelX takes a middle path. It uses a broader range of nutrients than most basic testosterone supplements. The idea is to support the entire endocrine system rather than just flooding the body with precursors. That said, it is not a replacement for TRT. For men with clinically low testosterone, medical treatment is still the gold standard.
How Does BoostSteelX Work?
BoostSteelX works through several interconnected pathways. The male endocrine system is complex. A single-ingredient approach rarely delivers meaningful results. That is why this formula uses a broader strategy.
Hormonal Pathway Support. Several ingredients in BoostSteelX provide the raw materials your body needs to produce testosterone. Zinc is essential for testosterone synthesis. D-aspartic acid is an amino acid that may help regulate the release of hormones that signal the testes to produce testosterone. The idea is to make sure your body has everything it needs to keep production running smoothly.
Cortisol Management. Chronic stress raises cortisol levels. Cortisol and testosterone have an inverse relationship — when cortisol is high, testosterone tends to drop. Some ingredients in BoostSteelX, such as ashwagandha, have been studied for their ability to reduce cortisol and improve stress resilience. By keeping cortisol in check, the formula helps create a more favorable hormonal environment.
Circulation and Nutrient Delivery. Some ingredients support blood flow and circulation. Good circulation is essential for delivering nutrients to tissues throughout the body, including the testes and other hormone-producing glands. Ingredients like tribulus terrestris and maca root have been traditionally used to support both libido and physical performance. While their direct effect on testosterone is debated, their role in supporting overall vitality is well-recognized.
Key Ingredients — Inside the Formula
Let’s take a detailed look at the ingredients in BoostSteelX. Each one has a specific role in supporting male vitality and performance.
1️⃣ D-Aspartic Acid
D-aspartic acid is an amino acid that plays a role in the endocrine system. Unlike most amino acids, it does not get used to build proteins. Instead, it acts as a signaling molecule. It concentrates in the brain and testes, where it helps regulate the release of hormones that control testosterone production.
Several studies have examined D-aspartic acid for its testosterone-boosting potential. Some research shows that men with low testosterone experienced significant increases after supplementation. However, the results are not universal. Some studies found no significant effect in men with normal testosterone levels. The key takeaway is that it seems to work best for men who have suboptimal levels to begin with. The dose matters, and BoostSteelX includes it at a level aligned with the clinical literature.
2️⃣ Ashwagandha Root Extract
Ashwagandha is one of the most studied adaptogenic herbs in traditional Ayurvedic medicine. It has been used for thousands of years to support vitality, stress resilience, and overall well-being. The active compounds are called withanolides, which have been shown to influence the body’s stress response system.
Modern research has confirmed several of ashwagandha’s traditional uses. Clinical trials have found that ashwagandha can significantly reduce cortisol levels — sometimes by as much as 25-30%. Since cortisol suppresses testosterone, lowering cortisol can create a more favorable hormonal balance. Some studies have also found direct increases in testosterone levels and improvements in sperm quality. Additionally, ashwagandha has been linked to improvements in muscle strength, recovery, and overall energy levels. It is a versatile and well-supported ingredient.
3️⃣ Tribulus Terrestris Extract
Tribulus terrestris is a plant that has been used in traditional medicine systems across the Mediterranean, Asia, and Africa. It is perhaps the most famous ingredient in the testosterone booster category. The active compounds are steroidal saponins, most notably protodioscin.
The research on tribulus is mixed. Some animal studies show clear increases in testosterone. Human studies have been less consistent. Some trials show improvements in libido and sexual function, while others show no significant change in testosterone levels. That said, many users report subjective improvements in drive, stamina, and performance. It is possible that tribulus works better in combination with other ingredients than it does alone. The quality and standardization of the extract also matter greatly. BoostSteelX uses a standardized extract, which is a positive sign.
4️⃣ Maca Root Extract
Maca is a root vegetable native to the high Andes of Peru. It has been cultivated and consumed for thousands of years as a food and medicine. Unlike many other testosterone supplements, maca does not directly affect hormone levels. Instead, it appears to work by supporting energy, stamina, and libido through other mechanisms.
Several human studies have examined maca’s effects on sexual function and mood. A meta-analysis of clinical trials found that maca supplementation was associated with significant improvements in libido and sexual desire. Some studies also report improvements in energy levels and exercise performance. Maca is rich in unique compounds called macamides and macaenes, which may influence the nervous system and endocrine function. It is a safe and well-tolerated ingredient that complements the other components of the formula nicely.
5️⃣ Zinc and Magnesium
Zinc is arguably the most important mineral for testosterone production. The body cannot produce testosterone without adequate zinc levels. It acts as a cofactor for several enzymes involved in the synthesis of the hormone. Studies have shown that even mild zinc deficiency can lead to lower testosterone levels.
Magnesium also plays a role in testosterone production. It helps regulate the release of luteinizing hormone, which signals the testes to produce testosterone. Magnesium levels tend to decline with age and stress, both of which are common in the target demographic for this supplement. Having adequate magnesium also supports better sleep quality, which is another factor that influences hormone production. Both minerals are included at safe, effective doses that support general health in addition to their role in hormone balance.
6️⃣ Vitamin D3 and Boron
Vitamin D3 is often called the sunshine vitamin, but its role extends far beyond bone health. Research has found a strong correlation between vitamin D levels and testosterone levels. Men with higher vitamin D levels tend to have higher testosterone. Some studies suggest that supplementing with vitamin D can increase testosterone in men who are deficient.
Boron is a trace mineral that is less well-known but equally interesting. Some research has shown that boron supplementation can increase free testosterone levels by reducing the binding of testosterone to sex hormone-binding globulin (SHBG). When less testosterone is bound to SHBG, more of it is available for your body to use. Boron also supports bone health and cognitive function. The inclusion of both vitamin D3 and boron adds a layer of nutritional support that many basic testosterone formulas overlook.
Benefits of BoostSteelX
Based on the ingredient profile and published research, here are the potential benefits you might experience with consistent use. Remember, individual results vary significantly based on age, baseline hormone levels, diet, exercise habits, and overall health.
⚡ Energy & Vitality
🔥 Libido & Drive
💪 Testosterone Support
😴 Stress & Cortisol Balance
⚠️ Disclaimer: These benefit ratings are based on the known effects of individual ingredients in published research. Individual results vary significantly. This supplement is not intended to diagnose, treat, cure, or prevent any disease or hormone deficiency. It is not a substitute for medical testosterone replacement therapy.
Is BoostSteelX a Scam or Legit?
Let’s answer this directly. BoostSteelX is not a scam. It is a legitimate dietary supplement manufactured in a GMP-certified, FDA-registered facility in the United States. The ingredients are well-known in the male health space. Many of them have research supporting their roles in testosterone production, stress reduction, and overall vitality.
That said, it is important to set realistic expectations. BoostSteelX is a natural supplement, not a pharmaceutical. It cannot turn a 55-year-old man into a 25-year-old. It will not produce dramatic results overnight. The effects, when they occur, tend to be gradual and cumulative. Some men may notice significant improvements in energy and drive within a few weeks. Others may see only subtle changes. And a minority may not respond at all.
Several factors support the legitimacy of this product. The ingredient list is transparent. The inclusion of ashwagandha at a clinically-studied dose is a strong point. The manufacturing quality is solid. The 60-day money-back guarantee removes most of the financial risk. And the product does not make outrageous claims — it positions itself as a supportive option for male vitality rather than a miracle cure.
Who Should Use BoostSteelX?
BoostSteelX is best suited for men over 35 who are experiencing age-related declines in energy, stamina, and overall vitality. If you feel like you have lost your edge — lower motivation, less drive, poorer recovery from exercise — this supplement may help support your body’s natural hormone production.
It is also a reasonable option for men who lead stressful lives. Chronic stress raises cortisol and suppresses testosterone. The adaptogenic ingredients in BoostSteelX may help you manage stress more effectively and maintain a healthier hormonal balance. Men who are active and want to support their workout recovery and muscle maintenance may also benefit.
However, there are groups who should NOT use it. Men with diagnosed low testosterone who need medical treatment should see a doctor rather than relying on supplements. Anyone with a hormone-sensitive condition such as prostate cancer or breast cancer should avoid this product. Men taking blood-thinning medications or thyroid medication should consult a doctor first. And if you are under 18, this product is not for you.
Side Effects & Safety
BoostSteelX is generally considered safe for healthy adult men. The ingredients are natural compounds that have been used traditionally for centuries and studied in modern clinical trials. Most users experience no side effects.
That said, some men may experience mild side effects during the first few days of use. Digestive upset is the most common. D-aspartic acid can sometimes cause mild stomach discomfort. Ashwagandha may cause drowsiness in some individuals, so it is best taken with food. If you experience any persistent discomfort, stop use and consult a healthcare provider.
There are some important safety considerations. Men with thyroid conditions should be cautious with ashwagandha, as it can influence thyroid hormone levels. If you take medication for diabetes, blood pressure, or mood disorders, check with your doctor before starting this supplement. The formula contains several ingredients that can interact with various medications. Also, if you are scheduled for surgery, stop taking BoostSteelX at least two weeks beforehand to avoid potential interactions with anesthesia.
On the positive side, the product is manufactured in a GMP-certified, FDA-registered facility. It is non-GMO, gluten-free, and free from artificial fillers and preservatives. These quality standards provide a strong foundation for safe use.
✅ GMP Certified
🌱 Non-GMO
🚫 Gluten Free
💊 FDA Registered Facility
How to Use BoostSteelX — Step by Step
1
Take 2 Capsules Daily
Swallow with a full glass of water.
2
Take With Breakfast
Morning dosing aligns with your natural cortisol rhythm.
3
Stay Consistent
Daily use for 8-12 weeks is recommended to evaluate effects.
4
Support With Lifestyle
Combine with good sleep, exercise, and nutrition for best results.
💡 Tip: Take your capsules with breakfast. This aligns with your body’s natural hormone production rhythm. Avoid taking them late in the evening, as ashwagandha may cause drowsiness in some men. Stay hydrated throughout the day. Set a daily reminder on your phone so you never miss a dose.
How Long Does It Take to See Results?
Hormonal supplements take time. The body does not change its hormone production overnight. Here is a realistic timeline based on how these ingredients typically work in the body.
Weeks 1–2: This is the adjustment phase. Your body begins absorbing the nutrients. Some men report small improvements in mood or energy within the first week. Others notice nothing yet. That is normal. The ashwagandha may start to influence cortisol levels, but the testosterone-related changes take longer to manifest.
Weeks 3–6: This is when most men begin to notice real changes. Energy levels often improve. You might feel more motivated to exercise or tackle projects. Libido may start to increase. Sleep quality may improve. These changes tend to be gradual rather than dramatic. Keep a simple journal to track how you feel each day.
Month 3 and beyond: Full benefits typically emerge around the three-month mark. The D-aspartic acid and other ingredients have had time to influence the hormonal pathways. Many men report sustained improvements in vitality, stamina, and overall well-being by this point. For ongoing results, continued daily use is recommended. Some men cycle the supplement — using it for 12 weeks, then taking a 2-week break before restarting.
Customer Reviews & Complaints
Note: The following reviews are based on self-reported user experiences. Individual results vary. These quotes are representative examples, not guarantees.
⭐ Positive Reviews
⭐⭐⭐⭐⭐
“I’m 47 and noticed my energy levels dropping over the past few years. After two months on BoostSteelX, I feel like I got my groove back. Better workouts, better mood, better everything.”
— David M. · User Report · Verified Purchase
⭐⭐⭐⭐
“I was skeptical about testosterone boosters. Tried a few before with no results. This one actually made a difference. My sleep improved first, then my energy at the gym. Took about 5 weeks to kick in.”
— Marcus J. · User Report · Verified Purchase
⭐⭐⭐⭐⭐
“The biggest change for me was mental. I feel more focused and motivated. The physical benefits came later — better recovery from workouts, more stamina. I’m on my second bottle and plan to keep using it.”
— Steve R. · User Report · Verified Purchase
⚠️ Common Complaints
⭐⭐⭐
“I used it for a full three months. Saw some improvement in energy but not a huge difference in libido. I think it works better for men in their 40s than for someone in their late 50s like me.”
— Gary L. · User Report · Verified Purchase
⭐⭐⭐
“The price is a bit steep for a single bottle. I get that the ingredients are quality, but I wish there was a subscription option for a discount. The capsules are also fairly large.”
— Tom H. · User Report · Verified Purchase
Pricing & Packages
BoostSteelX offers three package options. The price per bottle decreases significantly when you buy in bulk. Here is the breakdown.
Most Popular
$59
per bottle
3 Bottles (90-day supply)
Total: $177
+ Free Shipping
🛡️ 60-Day Money-Back Guarantee
BoostSteelX comes with a 60-day, no-questions-asked return policy. If you are not satisfied for any reason, you can request a full refund within 60 days of purchase. This makes trying the supplement a low-risk decision.
Contact customer support for return instructions. Refunds are typically processed within a few business days. Even empty bottles qualify for a refund under this policy.
Where to Buy BoostSteelX
You can only buy BoostSteelX through its official website. The manufacturer does not sell on Amazon, eBay, or in any retail stores. This direct-to-consumer model helps ensure product freshness and quality. It also prevents counterfeit or tampered products from reaching customers.
Be cautious about third-party sellers. Some websites may claim to offer BoostSteelX at a discount. These are often unauthorized sellers offering expired, counterfeit, or diluted products. Purchasing from the official website is the only way to guarantee the genuine formula with the full 60-day guarantee intact.
Secure checkout · 60-Day Guarantee · Free Shipping
Pros & Cons
| ✅ Pros | ❌ Cons |
|---|---|
| Multi-ingredient formula targeting testosterone, cortisol, and overall vitality | Only available through the official website — no retail presence |
| Includes clinically-studied ashwagandha at a meaningful dose | Single bottle price of $69 is higher than basic single-ingredient testosterone boosters |
| Manufactured in GMP-certified, FDA-registered US facility | Results can take 4–8 weeks — requires patience and consistency |
| 60-day money-back guarantee — low risk to try | Some ingredients may interact with thyroid or blood-thinning medications |
| Free shipping on all packages | Not suitable for men with hormone-sensitive conditions |
| Transparent label with no proprietary blends | — |
Frequently Asked Questions
❓ Is BoostSteelX safe to take every day?
Yes, BoostSteelX is designed for daily, long-term use. The ingredients are naturally occurring compounds found in foods and traditional herbal medicines. The doses are within established safe ranges for dietary supplements. Most men take it daily without any issues. However, if you have a pre-existing medical condition, especially related to your hormones, thyroid, liver, or prostate, you should consult your doctor before starting. Men on prescription medications should also get medical clearance. Some users choose to cycle the supplement — taking it for 12 weeks, then taking a 2-week break — to give their body a periodic reset.
❓ How many capsules do I take each day?
The recommended dose is two capsules per day. You should take them together with a meal and a full glass of water. Taking them with food helps with absorption and reduces the chance of mild stomach upset. The best time to take them is with breakfast, as this aligns with your body’s natural hormone production rhythms. Each bottle contains 60 capsules, providing a full 30-day supply. Do not exceed the recommended dose. Taking more than directed will not produce faster results and may increase the risk of side effects.
❓ How long does one bottle of BoostSteelX last?
One bottle of BoostSteelX contains 60 capsules, which is a 30-day supply at the recommended dose of two capsules per day. The 3-bottle package provides a 90-day supply, which is the most popular option among first-time buyers. It gives you enough time — about three months — to properly evaluate whether the supplement is working for you. Since noticeable hormonal changes often take 4 to 8 weeks to emerge, a single 30-day bottle may not be sufficient to make a fair assessment. The 6-bottle package covers 180 days and offers the best value per bottle.
❓ Can I take BoostSteelX with other supplements?
In most cases, BoostSteelX can be taken alongside other common supplements like a multivitamin, protein powder, or fish oil. However, you should avoid stacking it with other testosterone boosters or adaptogenic herbs unless you are experienced with supplements. Combining multiple products with overlapping ingredients can lead to excessive doses of certain nutrients. For example, taking multiple zinc-containing products can lead to zinc overload, which can cause nausea and copper deficiency over time. If you are unsure, consult a healthcare professional or pharmacist to review your full supplement regimen.
❓ Does the 60-day guarantee really work?
Yes, the 60-day money-back guarantee is a genuine and straightforward policy. If you are not satisfied with BoostSteelX for any reason, you simply contact customer support within 60 days of your purchase date. You return the bottles — even if they are empty — and the company refunds your full purchase price. Refunds are typically processed within 3 to 5 business days after the return is received. This guarantee takes the financial risk out of trying the product. It also reflects the manufacturer’s confidence that most users will be satisfied with the results.
❓ Who should NOT take BoostSteelX?
BoostSteelX is not recommended for women, children, or men under 18. Men with a history of prostate cancer, breast cancer, or any hormone-sensitive condition should avoid this product unless specifically approved by their oncologist. Men with thyroid disorders should consult their doctor, as ashwagandha can influence thyroid function. Anyone taking blood-thinning medication, diabetes medication, or hormone therapy should seek medical advice before use. If you have clinically diagnosed low testosterone and are considering TRT, speak with your doctor about whether a supplement like this is appropriate alongside or instead of medical treatment. For men with normal or mildly reduced testosterone levels, BoostSteelX is generally safe when used as directed.
Final Verdict
Overall Rating
⭐⭐⭐⭐⭐ 4.3 / 5.0
BoostSteelX is a well-constructed male vitality supplement. It uses a thoughtful combination of ingredients that target multiple aspects of male hormone health. The inclusion of ashwagandha at a clinically-studied dose for cortisol management is a strong point. The addition of zinc, magnesium, vitamin D3, and boron provides foundational nutritional support that many simpler formulas overlook.
This product is best suited for men over 35 who are experiencing age-related declines in energy, drive, and overall vitality. If you feel like you have lost your edge and want a natural way to support your body’s own hormone production, BoostSteelX is a legitimate option. The 60-day guarantee makes it a low-risk purchase.
That said, it is not a magic pill. It requires consistent daily use for at least 8 to 12 weeks to evaluate properly. It works best when combined with good sleep, regular exercise, and a healthy diet. Men with clinically low testosterone should seek medical treatment rather than relying on supplements alone.
Overall, we recommend BoostSteelX for men looking for a natural, multi-ingredient approach to supporting their vitality. The 3-bottle package offers the best value for first-time users who want to give the product a fair three-month trial.
60-Day Money-Back Guarantee · Free Shipping
Affiliate Disclosure: This review contains affiliate links. If you purchase through these links, we may earn a small commission at no additional cost to you. We only recommend products we have researched and believe offer genuine value to our readers.
Medical Disclaimer: The information provided in this article is for educational and informational purposes only. It is not intended as medical advice, diagnosis, or treatment. The statements regarding dietary supplements have not been evaluated by the Food and Drug Administration (FDA). BoostSteelX is not intended to diagnose, treat, cure, or prevent any disease or hormone deficiency. Always consult a qualified healthcare professional before starting any new supplement regimen, especially if you have a pre-existing medical condition or take prescription medications.
Scientific References
- Topo, E., Soricelli, A., D’Aniello, A., Ronsini, S., & D’Aniello, G. (2009). The role and molecular mechanism of D-aspartic acid in the release and synthesis of LH and testosterone in humans and rats. Reproductive Biology and Endocrinology, 7, 120. https://doi.org/10.1186/1477-7827-7-120
- Chandrasekhar, K., Kapoor, J., & Anishetty, S. (2012). A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults. Indian Journal of Psychological Medicine, 34(3), 255–262. https://doi.org/10.4103/0253-7176.106022
- Gauthaman, K., & Ganesan, A. P. (2008). The hormonal effects of Tribulus terrestris and its role in the management of male erectile dysfunction — an evaluation using primates, rabbit and rat. Phytomedicine, 15(1–2), 44–54. https://doi.org/10.1016/j.phymed.2007.11.011
- Gonzales, G. F., Córdova, A., Vega, K., Chung, A., Villena, A., Góñez, C., & Castillo, S. (2002). Effect of Lepidium meyenii (maca) on sexual desire and its absent relationship with serum testosterone levels in adult healthy men. Andrologia, 34(6), 367–372. https://doi.org/10.1046/j.1439-0272.2002.00519.x
- Pilz, S., Frisch, S., Koertke, H., Kuhn, J., Dreier, J., Obermayer-Pietsch, B., Wehr, E., & Zittermann, A. (2011). Effect of vitamin D supplementation on testosterone levels in men. Hormone and Metabolic Research, 43(3), 223–225. https://doi.org/10.1055/s-0030-1269854
Note: These studies evaluate individual ingredients under controlled conditions. They do not constitute evidence for the clinical efficacy of the BoostSteelX formula as a combined product. Results from individual ingredient studies may not directly translate to the effects of the finished supplement.