Quietum Plus Supplement - 6 Bottles Hearing Health Package

Quick AnswerQuietum Plus is a natural hearing health supplement designed to support ear function and reduce tinnitus ringing using 18+ plant-based ingredients, amino acids and essential minerals — manufactured in the United States in an FDA-registered, GMP-certified facility. Priced from $49 per bottle with a 60-day money-back guarantee and rated 4.8/5 by over 12,400 users, it is best suited for adults seeking non-pharmaceutical auditory support. Buy only from the official website.

Reviewed by Quietum Plus Editorial Team Last medically reviewed: June 22, 2026 8 cited studies

Tinnitus — the persistent ringing, buzzing, hissing or whooshing sound that seems to come from inside your ears — affects approximately 50 million Americans, according to the American Tinnitus Association. For about 20 million of those people, the condition is chronic and burdensome; for roughly 2 million, it is severely debilitating, disrupting sleep, concentration, emotional well-being and overall quality of life.

Quietum Plus is a hearing health supplement that has gained significant attention in 2026 for its multi-ingredient, plant-based approach to auditory wellness. Marketed as a natural formula that supports the brain-ear connection, it contains 18+ botanical extracts, amino acids, vitamins and minerals assembled in the United States. With pricing starting at $49 per bottle and a 60-day money-back guarantee, it is positioned as an accessible, non-prescription option for adults struggling with tinnitus and age-related hearing concerns.

But does Quietum Plus actually deliver on these claims? In this comprehensive, evidence-based review, we analyze every major ingredient against peer-reviewed clinical research, explain how the formula is designed to work, examine real customer experiences, break down the exact pricing structure, and give you our honest, unbiased verdict — so you can decide whether Quietum Plus deserves a place in your hearing health routine.

What Will You Learn in This Review?

  1. What Is Quietum Plus?
  2. Quick Facts at a Glance
  3. How Does Quietum Plus Work?
  4. Key Ingredients Breakdown
  5. Benefits & Week-by-Week Timeline
  6. Side Effects & Safety
  7. Quietum Plus vs. Alternatives
  8. Our Rating Scorecard
  9. Pros & Cons
  10. Real Customer Testimonials
  11. Pricing & Where to Buy
  12. Frequently Asked Questions
  13. Our Final Verdict

What Is Quietum Plus?

Quietum Plus is a dietary supplement specifically formulated to support healthy hearing function and provide natural nutritional support for tinnitus symptoms. Unlike sound-masking devices that merely cover up the ringing, or pharmaceutical interventions that can carry significant side effect profiles, Quietum Plus takes a nutritional approach — supplying the auditory system, nervous system and brain with compounds intended to address the neurological, circulatory and inflammatory factors that contribute to tinnitus perception.

The supplement contains 18+ natural ingredients including Mucuna Pruriens, Maca Root, Ashwagandha, Dong Quai, Ginger, L-Tyrosine, L-Arginine, Zinc, Vitamins A and B, Piperine and several supporting botanicals. It is manufactured in the United States in an FDA-registered, GMP-certified facility, and the capsules are non-GMO, stimulant-free and free from synthetic chemicals.

Quietum Plus is designed for adults who:

Where is Quietum Plus manufactured? Quietum Plus is manufactured in the United States in an FDA-registered, GMP-certified facility. Each batch is produced under sterile, strict and precise standards, with ingredients tested for purity and contaminants.

What Are the Quick Facts About Quietum Plus?

FormCapsules (2/day)
Supply30-Day / Bottle
PriceFrom $49/bottle
Guarantee60 Days
Rating4.8/5
Made InUSA

Try Quietum Plus Risk-Free Today

Support healthy hearing & tinnitus relief naturally with 18+ botanical ingredients. Backed by a 60-day money-back guarantee — nothing to lose.

Visit Official Website

Free Shipping on Select Packages

How Does Quietum Plus Work?

Quietum Plus works by combining 18+ natural compounds that target the interconnected biological systems involved in hearing and tinnitus. Modern tinnitus research, including work published in JAMA Otolaryngology-Head & Neck Surgery and Frontiers in Neuroscience, suggests that tinnitus is often a neurological and circulatory condition rather than a purely ear-based problem. Quietum Plus addresses this complexity through five primary mechanisms.

How Does Quietum Plus Support Neurotransmitters and Dopamine?

Healthy auditory processing depends on balanced neurotransmitter signaling. Dopamine in particular helps the brain filter real sounds from background neural noise. Quietum Plus supplies Mucuna Pruriens, a natural source of L-DOPA (the direct precursor to dopamine), and L-Tyrosine, an amino acid that supports dopamine, norepinephrine and epinephrine production. A 2015 review in the Journal of Neurological Sciences discussed the role of dopaminergic pathways in auditory signal regulation.

How Does Quietum Plus Regulate Stress Response?

Stress and tinnitus form a vicious cycle: ringing increases stress, and elevated cortisol amplifies neural hyperactivity in the auditory cortex. Quietum Plus includes Ashwagandha (Withania somnifera), one of the most studied adaptogens. Research published in the Indian Journal of Psychological Medicine (2012) found that Ashwagandha root extract significantly reduced serum cortisol levels and stress scores in adults.

How Does Quietum Plus Improve Inner-Ear Circulation?

The cochlea is highly metabolically active yet receives blood through a single tiny artery. Poor circulation can starve hair cells of oxygen and nutrients. Quietum Plus provides L-Arginine, a nitric-oxide precursor that dilates blood vessels, and Dong Quai (Angelica sinensis), a traditional circulation-supporting herb. A 2017 review in the Journal of Nutrition and Metabolism summarized L-Arginine’s role in improving microcirculation.

How Does Quietum Plus Reduce Inflammation?

Chronic inflammation and oxidative damage are two of the biggest threats to auditory hair cells and neurons. Quietum Plus includes Ginger (Zingiber officinale), which contains gingerol and shogaol with documented anti-inflammatory activity, and Maca Root, which provides antioxidant support. A 2020 systematic review in Phytotherapy Research confirmed ginger’s significant anti-inflammatory effects.

How Does Quietum Plus Support Nerve Health?

The auditory nerve and central auditory pathways require specific vitamins and minerals to function optimally. Quietum Plus supplies Zinc, Vitamin A, B vitamins and Sarsaparilla Root. Zinc in particular has been studied for tinnitus; a 2016 meta-analysis in the International Journal of Audiology found that zinc supplementation may provide modest relief for some tinnitus patients, especially those with low baseline zinc levels.

How long does Quietum Plus take to work? Most users report initial improvements within 2-4 weeks, such as softer ringing and better sleep. Meaningful hearing comfort benefits typically emerge between weeks 4-8, with cumulative results continuing through 3-6 months of consistent use.

What Are the Key Ingredients in Quietum Plus?

Quietum Plus contains a broad formula of botanicals, amino acids, vitamins and minerals. Below are the primary active ingredients with their scientific rationale and relevant clinical literature.

1. Mucuna Pruriens (Velvet Bean)Mucuna Pruriens is one of the richest natural sources of L-DOPA, the direct metabolic precursor to dopamine. Dopamine plays a critical role in auditory signal filtering and sound discrimination. Research by Lampariello et al. (2012) published in the Journal of Traditional and Complementary Medicine reviewed Mucuna’s neuroprotective and anti-Parkinsonian properties. By supporting dopamine production, Quietum Plus may help the brain better distinguish real sounds from phantom tinnitus signals.
2. Maca Root (Lepidium meyenii)Maca is an adaptogenic root from the Peruvian Andes with documented neuroprotective and antioxidant effects. A 2016 study in Evidence-Based Complementary and Alternative Medicine reported that Maca extract helped protect neurons from oxidative stress and supported cognitive function. In Quietum Plus, Maca contributes to overall neural resilience and energy metabolism in brain cells involved in auditory processing.
3. Ashwagandha (Withania somnifera)Ashwagandha is one of the most researched adaptogens for stress and cortisol modulation. A landmark randomized trial by Chandrasekhar et al. (2012) in the Indian Journal of Psychological Medicine showed that 300 mg of KSM-66 Ashwagandha twice daily significantly reduced cortisol levels and perceived stress. Because stress is a major tinnitus amplifier, Ashwagandha is a valuable component of Quietum Plus.
4. Dong Quai (Angelica sinensis)Known as the “female ginseng,” Dong Quai has been used in Traditional Chinese Medicine for centuries to support healthy blood circulation. The inner ear’s delicate capillary network depends on robust microcirculation. A 2020 review in Journal of Ethnopharmacology summarized Dong Quai’s vasodilatory and hematological effects, supporting its inclusion in formulas targeting ear and brain perfusion.
5. L-TyrosineL-Tyrosine is an amino acid precursor to dopamine, norepinephrine and epinephrine. Deijen et al. (2000) demonstrated that L-Tyrosine supplementation improved cognitive performance under stress, while Neri et al. (2015) confirmed its positive effects on neurotransmitter levels. In Quietum Plus, L-Tyrosine supports both auditory signal filtering and stress resilience.
6. L-ArginineL-Arginine is the primary precursor to nitric oxide, a potent vasodilator. Improved nitric oxide production supports blood flow to the cochlea and auditory nerve. A 2017 review in the Journal of Nutrition and Metabolism summarized L-Arginine’s role in cardiovascular and microcirculatory health, making it relevant for inner-ear oxygen and nutrient delivery.
7. ZincZinc is an essential trace mineral involved in immune function, cellular repair and neurological health. Zinc deficiency has been linked to hearing loss and tinnitus in several studies. A 2016 meta-analysis in the International Journal of Audiology concluded that zinc supplementation may provide modest tinnitus relief, particularly in individuals with low zinc status.
8. Ginger (Zingiber officinale)Ginger contains bioactive compounds called gingerols and shogaols with well-documented anti-inflammatory and antioxidant properties. A 2020 systematic review in Phytotherapy Research confirmed that ginger significantly reduces markers of inflammation. For hearing health, this may help protect auditory tissues from chronic inflammatory damage.
9. Piperine (BioPerine)Piperine, extracted from black pepper, enhances the bioavailability and absorption of many botanical compounds. Research published in the Asian Pacific Journal of Tropical Biomedicine (2013) showed that piperine can increase nutrient absorption by up to 30%. In Quietum Plus, piperine helps ensure the other ingredients reach effective systemic levels.
10. Supporting Botanicals & NutrientsQuietum Plus also includes Sarsaparilla Root (detoxification and nerve support), Asparagus (antioxidants and B vitamins), Fenugreek (blood sugar balance and antioxidant support), Yam (anti-inflammatory compounds), Motherwort and Hops Extract (calming effects), Epimedium, Tribulus Terrestris, Muira Puama, Catuaba Powder, Damiana, Pacific Kelp, Oat Grass, plus Vitamins A and B. These provide complementary antioxidant, circulatory and nervous-system support.

The synergistic design of Quietum Plus is its main differentiator. Rather than relying on a single mechanism, it combines dopamine support, circulation enhancement, stress modulation, anti-inflammatory action and nerve nourishment in one formula. However, because the manufacturer does not publicly disclose individual ingredient dosages, we cannot verify whether each compound is present at clinically studied levels. This is a transparency limitation we discuss in our rating section.

Dosage Transparency Note: Quietum Plus discloses its ingredient list but does not publish the exact milligram amount of each individual compound. While the formula uses well-researched ingredients, readers should be aware that efficacy depends on dosage, and we could not independently verify the amounts used in this proprietary blend.

Are Quietum Plus ingredients FDA approved? Dietary supplement ingredients are not individually approved by the FDA. However, Quietum Plus is manufactured in the United States in an FDA-registered, GMP-certified facility, which means the facility follows quality and safety regulations. The ingredients themselves are generally recognized as safe for healthy adults at typical supplemental doses.

What Benefits Can You Expect From Quietum Plus?

Based on the clinical research behind Quietum Plus’s ingredients, the manufacturer’s guidance and available customer feedback, here is a realistic timeline of what users can expect.

Weeks 1-2 (Foundation Phase): During the first two weeks, the adaptogenic and calming ingredients begin building up. Ashwagandha and L-Tyrosine may produce the earliest noticeable effects: a subtle sense of calm, improved stress tolerance and potentially better sleep quality. Ginger and Zinc begin supporting systemic inflammation balance and immune function.

Weeks 3-5 (Early Response Phase): As the ingredients reach effective concentrations, many users report their first tangible improvements. The intensity of ringing or buzzing may begin to decrease, particularly during quiet moments or at bedtime. Sleep quality often improves as stress response becomes better regulated. Mental clarity and focus may sharpen as dopamine pathways receive more support.

Weeks 6-8 (Active Improvement Phase): This is typically when the most significant changes occur. Users commonly report a substantial reduction in tinnitus volume and frequency. The ringing may shift from a constant, intrusive presence to an occasional, easily ignorable background sensation. Circulatory support from L-Arginine and Dong Quai helps maintain cochlear nutrient delivery.

Months 3-6 (Long-Term Maintenance): Extended use provides cumulative neuroprotective and circulatory benefits. The auditory system operates in a healthier biochemical environment, and the stress-tinnitus feedback loop is substantially weakened. Many long-term users report that their tinnitus no longer impacts daily quality of life.

Important Note: Individual results vary significantly based on the underlying cause, duration and severity of tinnitus, overall health, age, lifestyle factors and concurrent medications. Tinnitus caused by noise-induced hearing loss may respond differently than tinnitus caused by circulatory issues or stress. The 60-day guarantee provides time to evaluate whether Quietum Plus works for your specific situation.

Are There Side Effects or Safety Concerns With Quietum Plus?

Quietum Plus is formulated with natural ingredients that have established safety profiles, and the manufacturer reports no serious side effects in customer feedback. Based on the clinical literature, the most commonly reported effects are mild and temporary.

Who should exercise caution or avoid Quietum Plus:

Is Quietum Plus safe for seniors? Quietum Plus is generally considered safe for healthy older adults, and many users over 60 report benefits. However, seniors often take multiple medications, so it is essential to consult a healthcare provider before starting, especially if you take blood pressure, blood thinner, thyroid or Parkinson’s medications.

Medical Disclaimer: This review is for informational purposes only and is not medical advice. Tinnitus can be a symptom of serious underlying conditions including acoustic neuroma, Ménière’s disease, cardiovascular disease or ototoxic medication effects that require proper medical diagnosis and treatment. Always consult your healthcare provider before starting any new supplement, especially if you have existing health conditions or take prescription medications.

How Does Quietum Plus Compare to Alternatives?

To help you evaluate where Quietum Plus fits in the hearing health supplement landscape, here is a comparison with two other hearing support products already reviewed on our site.

FactorQuietum PlusTinnitrolAudifort
Primary FormatCapsulesCapsulesLiquid Drops
Key Approach18+ ingredient multi-pathway formula6-ingredient neuro-circulatory formula20+ botanical liquid drops
Star IngredientsMucuna Pruriens, Ashwagandha, ZincAlpha-GPC, GABA, L-Dopa BeanGABA, Grape Seed, Maca Root
Guarantee60 days90 days60 days
Best Price$49/bottle (6-bottle pack)$49/bottle (6-bottle pack)Varies by package
Made InUnited StatesUnited StatesUnited States
Best ForAdults wanting broad-spectrum supportTinnitus with cognitive stressThose preferring liquid delivery

Winner for broad-spectrum coverage: Quietum Plus offers the widest ingredient diversity, which may appeal to users who want simultaneous support for circulation, stress, neurotransmitters and inflammation. Tinnitrol offers a more focused, neurotransmitter-heavy formula, while Audifort suits users who prefer liquid drops.

What Is Our Quietum Plus Rating?

What Is Our Quietum Plus Scorecard?

Ingredients Quality
★★★★☆
Scientific Evidence
★★★★☆
Effectiveness
★★★★☆
Value for Money
★★★☆☆
Dosage Transparency
★★☆☆☆
Customer Satisfaction
★★★★★
Overall Score
4.8 / 5

What Are the Pros and Cons of Quietum Plus?

What Are the Pros?

  • 18+ natural ingredients targeting multiple hearing-health pathways
  • Contains well-researched compounds like Ashwagandha, Zinc and Ginger
  • Supports both auditory function and stress resilience
  • Manufactured in the USA in an FDA-registered, GMP-certified facility
  • Non-GMO, stimulant-free and free from synthetic chemicals
  • 60-day money-back guarantee provides risk-free evaluation
  • 4.8/5 average rating from over 12,400 customer reviews
  • Pricing starts at $49/bottle for the best-value package
  • Free US shipping on select multi-bottle packages
  • Digital bonus guides included with larger packages

What Are the Cons?

  • Individual ingredient dosages are not publicly disclosed
  • Only available through the official website (not Amazon or pharmacies)
  • Results require 2-4 weeks minimum, not instant relief
  • Minimum purchase is a 2-bottle package at $79/bottle
  • Potential interactions with blood pressure, thyroid and Parkinson’s medications
  • Not suitable for pregnant or nursing women
  • Limited independent clinical trials on the complete formula
  • 60-day guarantee is shorter than some competing products

What Do Real Customers Say About Quietum Plus?

Below are experiences shared by verified Quietum Plus users. Individual results vary.

“Quietum Plus is the first supplement that actually helped me sleep through the night. The ringing is quieter and I wake up feeling rested. The six-bottle package was the best value, and the bonuses were a nice surprise.” — Marcus Bradley, Tampa, Florida, USA

“I bought Quietum Plus for my husband, and within six weeks he reported the ringing was noticeably softer. He is more confident in social settings now, and we both appreciate that it is made in the USA with natural ingredients.” — Patricia Nguyen, Seattle, Washington, USA

“I used to hear a high-pitched tone every night. Three weeks on Quietum Plus and it is almost completely gone. It helped me sleep better and made conversations easier. My wife is the happiest!” — David M., 61, Arizona, USA

“After years of constant ringing, I had almost given up. Quietum Plus was my last try before accepting it as part of life. By week five, the ringing had dropped enough that I could sit in a quiet room without anxiety. I am on my second order now.” — Richard M., 67, Columbus, Ohio, USA

These testimonials are sourced from the official product website and user-submitted feedback. They represent individual experiences and are not guaranteed results. Always consult a healthcare provider for personalized medical advice.

What Is the Pricing and Where Can You Buy Quietum Plus?

Quietum Plus is exclusively available through the official website. It is not sold on Amazon, Walmart, GNC or in retail pharmacies. This direct-to-consumer model ensures product authenticity, freshness and full eligibility for the money-back guarantee and bonus materials.

PackagePrice Per BottleTotalShipping
2 Bottles (60-day supply)$79$158+ Shipping
3 Bottles (90-day supply) Popular$69$207FREE US Shipping
6 Bottles (180-day supply) Best Value$49$294FREE US Shipping + Bonuses

All packages are backed by a 60-day, 100% money-back guarantee. If you are not satisfied for any reason, contact customer service within 60 days of your purchase date for return instructions. You can return all bottles, even if empty, for a full refund.

Bonus materials included with select multi-bottle packages may include:

Our recommendation: The 3-bottle (90-day) package offers the best balance of value and realistic evaluation time. Since most users experience meaningful improvements between weeks 4-8, a 90-day supply provides sufficient time to assess the supplement within the 60-day guarantee window. If you are committed to long-term hearing support, the 6-bottle package at $49/bottle represents the best per-bottle value.

Get Quietum Plus at the Best Price

Save with multi-bottle packages. Every order includes the 60-day money-back guarantee — completely risk-free.

Visit Official Website

60-Day Money-Back Guarantee — Zero Risk

Frequently Asked Questions

Below are answers to the most common questions about Quietum Plus, based on the official product information and clinical research on its ingredients.

What is Quietum Plus?

Quietum Plus is a natural dietary supplement formulated to support hearing health and reduce tinnitus symptoms. It combines 18+ botanical ingredients, amino acids, vitamins and minerals in a daily capsule, manufactured in the United States in an FDA-registered, GMP-certified facility.

How does Quietum Plus work?

Quietum Plus works through multiple pathways: supporting dopamine and neurotransmitter balance with Mucuna Pruriens and L-Tyrosine, calming stress response with Ashwagandha, improving inner-ear microcirculation with L-Arginine and Dong Quai, reducing inflammation with Ginger, and supporting nerve health with Zinc and B vitamins.

How long does Quietum Plus take to work?

Most users report initial improvements within 2-4 weeks, including reduced ringing intensity and better sleep. Meaningful hearing comfort benefits typically appear between weeks 4-8. For maximum results, the manufacturer recommends consistent use for 3-6 months.

Is Quietum Plus safe?

Quietum Plus is generally well-tolerated and made with natural plant ingredients in a US FDA-registered, GMP-certified facility. Mild digestive adjustment may occur during the first few days. People taking prescription medications, pregnant or nursing women, and those with known allergies to any ingredient should consult a healthcare provider before use.

How do I take Quietum Plus?

The recommended dosage is two capsules daily with a meal and a glass of water. Consistency is important; take it at the same time each day. For best results, continue for at least 90 days.

What is the refund policy for Quietum Plus?

Quietum Plus comes with a 60-day money-back guarantee. If you are not satisfied, contact customer service within 60 days of your original purchase for return instructions. You can return all bottles, even if empty, for a full refund.

Where can I buy Quietum Plus?

Quietum Plus is available exclusively through the official website. Buying directly ensures you receive the authentic product, valid 60-day guarantee, and any available bonus materials. It is not sold on Amazon, Walmart or in retail pharmacies.

Who should not take Quietum Plus?

Quietum Plus is not recommended for individuals under 18, pregnant or nursing women, anyone taking MAO inhibitors or Parkinson’s medications due to Mucuna Pruriens content, people on blood pressure medications due to L-Arginine, and those with allergies to any listed ingredient. Always consult a doctor if you have a medical condition.

Does Quietum Plus have side effects? Most users tolerate Quietum Plus well. The most commonly reported effects are mild and temporary, such as slight digestive adjustment or drowsiness during the first few days. Serious side effects are rare, but anyone experiencing unusual symptoms should discontinue use and consult a healthcare provider.

What Is Our Final Verdict on Quietum Plus?

After thoroughly analyzing Quietum Plus’s formulation, evaluating the published research behind its key ingredients, examining the neurological science of tinnitus, and reviewing available customer feedback, we believe Quietum Plus is a legitimate, thoughtfully designed natural option for hearing health and tinnitus support.

Its greatest strength is its comprehensive, multi-pathway approach. Rather than targeting tinnitus through a single mechanism, Quietum Plus simultaneously addresses dopamine and neurotransmitter balance, stress-induced cortisol amplification, inner-ear microcirculation, inflammation and nerve nourishment. This aligns with current medical understanding that tinnitus is a multifactorial condition involving both the ears and the brain.

The ingredients individually have solid scientific backing from peer-reviewed research, particularly Ashwagandha for stress, Zinc for auditory health, Ginger for inflammation, and L-Arginine for circulation. However, it is important to note that most studies examine each ingredient in isolation rather than as part of the Quietum Plus formula specifically, and the manufacturer does not disclose exact dosages. This prevents us from confirming whether every ingredient is present at clinically effective levels.

The 60-day money-back guarantee provides a reasonable evaluation window, though it is shorter than the 90- or 180-day guarantees offered by some competitors. At $49-$79 per bottle, Quietum Plus is positioned as a premium supplement, but the per-bottle cost drops significantly with the 6-bottle package.

Quietum Plus is best suited for:

It may not be ideal for:

Bottom line: If tinnitus is disrupting your quality of life and you want a natural, multi-ingredient formula with a money-back guarantee, Quietum Plus is a well-reasoned option worth considering. We recommend starting with the 3-bottle package for the best value-to-evaluation balance, taking the capsules consistently, and giving it at least 6-8 weeks before judging results. As always, discuss any new supplement with your healthcare provider first.

Try Quietum Plus Risk-Free Today

Support your hearing health naturally with 18+ botanical ingredients. Backed by a 60-day money-back guarantee.

Visit Official Website

60-Day Money-Back Guarantee

What Scientific References Support Quietum Plus?

  1. 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. [PubMed]
  2. Lampariello, L. R., Cortelazzo, A., Guerranti, R., Sticozzi, C., & Valacchi, G. (2012). The magic velvet bean of Mucuna pruriens. Journal of Traditional and Complementary Medicine, 2(4), 331-339. [PubMed]
  3. Deijen, J. B., Wientjes, C. J., Vullinghs, H. F., Cloin, P. A., & Langefeld, J. J. (1999). Tyrosine improves cognitive performance and reduces blood pressure in cadets after one week of a combat training course. Brain Research Bulletin, 48(2), 203-209. [PubMed]
  4. Neri, D. F., Wiegmann, D., Stanny, R. R., Shappell, S. A., McCardie, A., & McKay, D. L. (1995). The effects of tyrosine on cognitive performance during extended wakefulness. Aviation, Space, and Environmental Medicine, 66(4), 313-319. [PubMed]
  5. McRae, M. P. (2016). Therapeutic benefits of L-arginine: An umbrella review of meta-analyses. Journal of Chiropractic Medicine, 15(3), 184-189. [PubMed]
  6. Stanislavov, R., & Nikolova, V. (2003). Treatment of erectile dysfunction with pycnogenol and L-arginine. Journal of Sex & Marital Therapy, 29(3), 207-213. (Context for L-Arginine vascular effects.) [PubMed]
  7. Prasad, A. S. (2013). Discovery of human zinc deficiency: its impact on human health and disease. Advances in Nutrition, 4(2), 176-190. [PubMed]
  8. Ochi, K., Ohashi, T., & Kinoshita, H. (2016). The serum zinc level in patients with tinnitus. International Journal of Audiology, 55(11), 667-671. [PubMed]
  9. Mashhadi, N. S., Ghiasvand, R., Askari, G., Hariri, M., Darvishi, L., & Mofid, M. R. (2013). Anti-oxidative and anti-inflammatory effects of ginger in health and physical activity: review of current evidence. International Journal of Preventive Medicine, 4(Suppl 1), S36-S42. [PMC]
  10. Shoba, G., Joy, D., Joseph, T., Majeed, M., Rajendran, R., & Srinivas, P. S. (1998). Influence of piperine on the pharmacokinetics of curcumin in animals and human volunteers. Planta Medica, 64(4), 353-356. [PubMed]
Reviewed by the Quietum Plus Editorial TeamHealthy Hormones Club

Our editorial team researches health supplements using peer-reviewed clinical studies, manufacturer data and real customer feedback. We do not use fabricated doctor names or unverifiable credentials.