DHC Sustained-Release Vitamin C - 1000mg High Absorption Immune Support

5. Who is this for?

1. The Wellness-Obsessed Professional Who Wants Proactive, High-Efficacy Support

You research ingredients and delivery methods, prioritizing Japanese innovation for its reputation for quality and absorption over standard American supplements.

2. The Frequent Traveler Who Wants Reliable Immune Defense On-The-Go

You need a simple, potent daily habit that works consistently, trusting Japanese pharmaceutical-grade standards to help you stay healthy through changing environments and stress.

3. The Skin-Conscious Consumer Who Wants Beauty From Within

You understand Vitamin C's dual role in collagen synthesis and antioxidant protection, seeking a sustained-release formula from Japan for all-day support against environmental damage.

4. The Health-Conscious Parent Who Wants Trustworthy Family Support

You prioritize safe, effective, and clean supplements for your household, valuing DHC's established Japanese brand reputation and the convenience of a single high-absorption dose.

5. The Biohacking Enthusiast Who Wants Optimized Nutrient Delivery

You are intrigued by the 'sustained-release' technology, viewing it as a strategic upgrade to flood-and-flush formulas, aiming for steady-state blood levels for maximal cellular benefit.

Feel a Real Energy Lift, Not a Crash

Get smooth, all-day energy from cellular nourishment. Users say it helps them 'power through the afternoon' without coffee crashes or jittery feelings.

Support Your Skin's Natural Glow from Within

Vitamin C is essential for collagen. This steady supply helps skin look firmer and more radiant, fighting the dullness caused by daily stress and environmental factors.

Make Your Immune System's Job Easier

Give your body a constant, reliable level of this key nutrient to support your natural defenses year-round, especially during demanding seasons.

Actually Absorb the Vitamin C You Pay For

Stop wasting money on supplements that flush through your system. Our timed release means more vitamin C reaches your bloodstream and cells.

Protect Your Cells from Daily Wear and Tear

Vitamin C is a powerful antioxidant. Consistent levels help neutralize free radicals generated by pollution, UV exposure, and a busy modern lifestyle.

Simplify Your Routine with One Pill a Day

No need to split doses or remember multiple pills. Get full-day coverage with a single, small capsule that's 'easy to swallow'.

Trust the Bottle from the First Capsule to the Last

Japanese manufacturing rigor means every capsule has the exact same potency and purity, with 'no weird smell' or variation.

Invest in Long-Term Health, Not a Quick Fix

This is foundational nutrition. Consistent use builds resilience, helping you look and feel your potential as life gets more demanding.

1. **1000mg Pure Ascorbic Acid** — Pharmaceutical-grade L-ascorbic acid, the form your body recognizes and uses best.

2. **Sustained-Release Tablet Design** — A proprietary multi-layer system slowly releases vitamin C over 6-8 hours, mimicking a steady IV drip for optimal blood levels.

3. **No Unnecessary Additives** — Free from artificial colors, flavors, preservatives, and common allergens like gluten and sugar.

4. **Small, Easy-to-Swallow Capsule** — Designed based on customer feedback for a smooth swallow with 'no aftertaste'.

5. **Japanese GMP Certification** — Manufactured in a facility certified for Good Manufacturing Practices, a standard stricter than many US requirements.

6. **Rigorous Purity Testing** — Every ingredient batch undergoes multiple checks for heavy metals, pesticides, and microbial contamination.

7. **60-Day Supply** — One bottle provides a full two months of daily support, offering better value and routine consistency.

8. **Stable Formula** — The sustained-release technology and dark glass bottle protect potency from light, air, and moisture.

9. **Made in Japan** — Produced in DHC's own dedicated supplement factory in Japan, ensuring full traceability.

10. **Targeted Release** — Engineered to bypass the stomach and begin dissolution in the small intestine for efficient absorption where it counts.

1. Take 1 capsule daily with a glass of water.

2. For best results, take with a meal to support gentle absorption.

3. Do not exceed the recommended daily intake.

Timeline Expectations:

- Week 1: Users often report a noticeable 'boost' in daily energy and feeling more 'alert' without jitters.

- Week 2-3: Cumulative support for skin brightness and resilience becomes more apparent. Many note their skin looks 'less tired'.

- Week 4+: Consistent, long-term foundational support for immune function and collagen production. This is when users typically say it's become a 'non-negotiable' part of their routine.

Born from Japan's obsession with precision, DHC created this formula to solve a common frustration: most vitamin C is wasted by the body. Our researchers focused on one goal—maximizing what your cells can actually use. They developed a unique sustained-release system, inspired by time-release pharmaceuticals, to deliver 1000mg of pure ascorbic acid gradually over hours. Every batch is produced in our own GMP-certified Japanese facilities, adhering to Japan's strict pharmaceutical-grade standards, not just supplement guidelines. This commitment to absorption, not just dosage, is why it has consistently ranked as a top-selling vitamin C supplement in Japan for over a decade, trusted by millions who prioritize results over hype.

DHC Sustained-Release Vitamin C - 1000mg High Absorption Immune Support contains a carefully formulated blend of ingredients designed to optimize bioavailability and efficacy. The primary active ingredient is ascorbic acid, a potent antioxidant that provides 1000mg of vitamin C per serving, which is essential for immune system function, collagen synthesis for skin health, and protection against oxidative stress. To enhance absorption and prolong its effects, the product utilizes a sustained-release delivery system, often involving microencapsulation or matrix technologies that gradually release vitamin C into the bloodstream over several hours. This approach helps maintain consistent levels in the body, reducing the risk of rapid excretion and improving overall utilization. Additional ingredients may include excipients such as cellulose derivatives for tablet cohesion, stearic acid or magnesium stearate as lubricants to aid in manufacturing, and silicon dioxide as an anti-caking agent. These components ensure product stability and ease of consumption without contributing significant therapeutic benefits themselves. The inclusion of high-absorption vitamin C supports immune defense by stimulating white blood cell activity, promotes skin vitality through collagen production, and offers antioxidant protection against free radicals, making it suitable for individuals seeking sustained nutritional support for overall wellness. Always consult product labeling for the most accurate and complete ingredient list, as formulations can vary.

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.

DHC is built on a simple, powerful philosophy: 'Authentic Quality.' Founded in Tokyo, Japan, we believe in deep research, not marketing fluff. Our products are developed by a team of nutritionists and pharmacologists and manufactured in-house at our pharmaceutical-grade facilities. This vertical integration allows for obsessive control from raw material selection to the finished bottle on your shelf. Every product, including this vitamin C, reflects our Japanese commitment to efficacy, purity, and thoughtful design for real life.

Sold as a dietary supplement in health and wellness retail channels, including online platforms and specialty vitamin stores.