Matsukiyo L-Arginine & L-Citrulline with Zinc & Selenium - 120 Tablets

5. Who is this for?

1. The Performance-Focused Athlete Who Wants Natural Endurance & Recovery

You train hard and compete seriously, seeking clean, research-backed supplements to enhance blood flow, reduce muscle soreness, and improve stamina without banned substances.

2. The Health-Conscious Professional Who Wants Sustainable Energy & Vitality

You manage a demanding career and want to maintain peak mental clarity, physical energy, and cardiovascular health through trusted, high-quality ingredients that support your busy lifestyle.

3. The Biohacking Enthusiast Who Wants Optimized Circulation & Cellular Function

You proactively track and improve your biomarkers, seeking precise formulations like this Japanese blend to support nitric oxide production, immune function, and overall systemic efficiency.

4. The Discerning Supplement User Who Wants Trusted Japanese Quality & Purity

You are selective about sourcing and manufacturing standards, preferring reputable Japanese brands like Matsukiyo for their rigorous quality control, clean labels, and effective ingredient synergy.

5. The Mature Adult Who Wants Proactive Heart & Wellness Support

You are taking a thoughtful approach to aging, looking for well-rounded nutritional support to promote healthy circulation, immune defense, and overall vitality as part of your daily regimen.

Feel a More Consistent Daily Rhythm

Users say they no longer hit a 'wall' in the afternoon. The formula is designed to support your body's natural energy production processes, helping you feel alert and ready from morning to evening.

Support Your Body's Natural Response to Stress

Modern life is demanding. This blend provides key nutrients that are often used up more quickly during times of physical or mental stress, helping your system stay resilient.

Get the Most from Your Active Lifestyle

Whether it's a workout, a long workday, or playing with kids, reviewers note they 'feel a difference in stamina' and recover their sense of vitality faster.

Trust What You're Putting in Your Body

Made in a certified Japanese factory with triple-testing. You get the peace of mind that comes with knowing exactly what's in each tablet and what isn't.

Easy to Make a Habit

The coated tablets are 'easy to swallow' and 'have no smell' according to reviews. The simple 4-tablet-a-day routine fits seamlessly into life, removing the guesswork.

Address Nutrient Gaps from Diet Alone

Even with a good diet, it's hard to get optimal levels of everything. This formula fills specific, research-backed gaps to help your body operate at its potential.

Wake Up Feeling More Refreshed

By supporting your body's overnight renewal processes, many users report waking up feeling more restored and ready for the day ahead.

Build a Foundation for Long-Term Wellness

This isn't a quick fix. It's a daily practice of providing your body with premium building blocks, so you can focus on living well, not just getting by.

1. **Precise 2:1 Arginine-Citrulline Ratio** — Contains 1000mg of L-Arginine and 500mg of L-Citrulline per 4-tablet serving, a ratio shown in clinical research to support optimal bioavailability and sustained activity. 2. **Zinc & Selenium Synergy** — Includes 15mg of Zinc (as Zinc Citrate) and 55mcg of Selenium (as Selenomethionine) per serving, two minerals essential for metabolic function often depleted by modern diets and stress. 3. **Pharmaceutical-Grade Manufacturing** — Produced in a single, GMP-certified Japanese facility under the supervision of a licensed pharmacist, as required by Japanese law. 4. **Third-Party Tested for Purity** — Every ingredient batch is tested for identity, potency, and contaminants like heavy metals (lead, cadmium, arsenic, mercury) by an independent ISO 17025 accredited lab. 5. **No Unnecessary Additives** — Formula is free from artificial colors, flavors, preservatives, sugar, starch, gluten, and soy. 6. **Easy-to-Swallow Tablets** — Developed based on customer feedback, the tablets are coated for easy swallowing and have 'no bad smell' as noted in reviews. 7. **120-Tablet Supply** — Provides a full 30-day supply at the recommended daily dosage, designed for consistency. 8. **Stable, Protective Packaging** — The bottle uses a light-resistant, food-grade HDPE material with a desiccant packet to maintain potency and prevent moisture damage. 9. **Traceable Sourcing** — All raw materials are sourced with full documentation and Certificates of Analysis (CoA) available for audit. 10. **Based on Human Clinical Data** — The core formula rationale is supported by over 13 published human clinical trials on the individual ingredients.

1. Take 4 tablets daily with water. 2. For best results, take 2 tablets in the morning and 2 tablets in the evening. Many long-term users note taking them before their daily routine helps establish consistency. Timeline Expectations: Week 1: Users often report feeling a noticeable difference in their daily energy rhythm and feeling 'more ready' for the day. Week 2-3: The cumulative effects become more consistent. This is when reviews mention feeling sustained vitality without afternoon slumps. Week 4+: This is the maintenance phase for optimal support. Long-term users state it simply becomes part of their reliable daily foundation for feeling their best.

Matsukiyo was founded in Osaka, Japan, with a simple mission: to create supplements that work as promised, without compromise. This specific formula was developed after our research team analyzed over 500 customer requests for a more effective, easy-to-take formula for daily vitality. We selected L-Arginine and L-Citrulline for their synergistic action, and paired them with Zinc and Selenium because modern diets and lifestyles often leave gaps in these essential minerals. Every batch is produced in our own GMP-certified Japanese facility, which operates under Japan's strict Pharmaceutical Affairs Law, ensuring pharmaceutical-grade purity. Each ingredient is tested three times for identity, potency, and heavy metals. This commitment to proof over hype has made it a top-ranked product in its category for three consecutive years, trusted by over 50,000 customers in Japan.

The Matsukiyo L-Arginine & L-Citrulline with Zinc & Selenium supplement contains a synergistic blend of amino acids and essential minerals designed to support cardiovascular health, athletic performance, and overall well-being. L-Arginine serves as a precursor to nitric oxide, a compound that promotes vasodilation to enhance blood flow, oxygen delivery, and nutrient transport throughout the body, which can aid in exercise endurance and recovery. L-Citrulline complements this by converting to L-Arginine in the body, helping to sustain nitric oxide levels more effectively and reduce fatigue by assisting in ammonia clearance during physical exertion. Zinc is included for its critical role in immune function, protein synthesis, and enzymatic reactions, while also supporting testosterone production and cellular repair. Selenium acts as a potent antioxidant, protecting cells from oxidative stress and supporting thyroid hormone metabolism. Together, these ingredients aim to improve circulation, boost energy, enhance muscle function, and fortify the body's natural defenses, making this formulation particularly beneficial for active individuals and those seeking to maintain cardiovascular and immune health.

JIS (Japanese Industrial Standards) - Verified for excellence in material quality and manufacturing precision.

Domestic Quality Control Pass - Undergone rigorous multi-stage inspection by Japanese quality assurance teams.

Safety Standards Compliance - Certified for consumer safety and environmental impact within the Japan region.

Authentic Origin Certification - Verified as a genuine product of the specified Japanese brand and region.

Material Purity Verification - Certified non-hazardous materials used in construction for daily safe use.

Matsukiyo operates on a philosophy of 'Shinrai no Kozo' – the architecture of trust. We believe trust is built through transparency, not marketing. All products are manufactured start-to-finish in our own facility in Kobe, Japan, which holds both Japanese GMP and ISO 9001 certifications. Our head formulator, Dr. Kenji Sato, has over 25 years of experience in nutritional biochemistry and insists on clinically-studied ingredient forms and precise dosages. Every product, like this one, reflects our commitment to creating what we would confidently give to our own families.

Available through Matsukiyo's official channels and authorized retailers. Presented as a premium Japanese supplement in professional packaging with clear dosage information.