Endur-C SR 1000mg 90 Tablets by Endurance Products

Endur-C SR 1000mg 90 Tablets by Endurance Products delivers 1000mg of vitamin C with rose hips in a SmartMatrix sustained-release tablet designed to release ascorbic acid gradually over 5 to 7 hours, supporting sustained immune function, antioxidant defense, and connective tissue integrity at a higher potency dose.

Key Benefits of Endur-C SR 1000mg Sustained-Release Vitamin C with Rose Hips

• High-Potency Immune System Support: Delivers 1000mg of vitamin C per tablet to support the structural and functional components of both the innate and adaptive immune systems, promoting the body's natural defense mechanisms at a clinically relevant dose.
• Antioxidant Defense: As a potent water-soluble antioxidant, vitamin C at 1000mg promotes robust neutralization of free radicals and supports cellular protection against oxidative stress throughout the body.
• Connective Tissue and Collagen Synthesis Support: Vitamin C is a required cofactor for collagen biosynthesis, supporting the structural integrity of skin, cartilage, tendons, blood vessels, and bone at every dose.
• Cardiovascular Function Support: Promotes healthy endothelial function and supports vascular integrity as part of a comprehensive cardiovascular wellness protocol.
• Rose Hips Complex: Includes rose hips as a natural source of vitamin C bioflavonoids and phytonutrients that complement the ascorbic acid content and support the antioxidant activity of the formula.
• SmartMatrix Sustained-Release Technology: Endurance Products Company's proprietary wax-matrix tablet releases vitamin C gradually over 5 to 7 hours, supporting more consistent plasma ascorbate levels and reducing urinary loss compared to immediate-release formulations.
• Vegan and Vegetarian Friendly: Formulated with vegetable-sourced wax and stearic acid, free from animal-derived ingredients.

Why This Formula Matters

Vitamin C is a water-soluble nutrient that the body cannot synthesize endogenously, making consistent supplemental intake essential for maintaining optimal ascorbate status, particularly for individuals with elevated oxidative stress, immune demands, or connective tissue support needs. At the 1000mg dose, immediate-release vitamin C supplements are absorbed rapidly but may result in transient plasma peaks followed by significant urinary excretion before tissues can fully utilize the available ascorbate. Endur-C SR 1000mg addresses this through SmartMatrix sustained-release technology, which extends vitamin C release over 5 to 7 hours to support more consistent tissue saturation, reduce urinary loss, and promote sustained antioxidant and immune activity throughout the day without the gastrointestinal discomfort sometimes associated with high single-dose immediate-release vitamin C.

Dietary and Quality Standards

• 1000mg vitamin C (as ascorbic acid with rose hips) per sustained-release tablet
• SmartMatrix proprietary wax-matrix sustained-release technology
• Releases vitamin C gradually over 5 to 7 hours
• Gluten-Free
• Vegan and Vegetarian
• Free from milk, egg, fish, shellfish, soy, peanuts, tree nuts, and wheat
• No salt, sugar, starch, preservatives, artificial colors, or flavorings
• 90 tablets per bottle
• Manufactured by Endurance Products Company, a US-based sustained-release tablet specialist

Frequently Asked Questions

How does Endur-C SR 1000mg differ from the 500mg version?

Endur-C SR 1000mg delivers twice the vitamin C per tablet compared to the 500mg version, making it well-suited for individuals with higher daily vitamin C requirements, those under increased oxidative or immune stress, or those following a healthcare provider's protocol that calls for a higher potency dose. Both versions use the same SmartMatrix sustained-release technology and rose hips complex. The appropriate dose should always be determined in consultation with a qualified healthcare professional.

What is sustained-release vitamin C and how does it differ from standard vitamin C?

Sustained-release vitamin C is formulated to release ascorbic acid gradually over several hours rather than all at once. Standard immediate-release vitamin C is absorbed rapidly, which can result in a sharp rise in plasma ascorbate followed by urinary excretion before tissues can fully utilize the available nutrient. The SmartMatrix sustained-release format used in Endur-C is designed to extend this release over 5 to 7 hours, supporting more consistent plasma and tissue ascorbate levels and reducing the urinary loss associated with high single-dose immediate-release formulations.

What is the role of rose hips in this formula?

Rose hips are the fruit of the Rosa canina plant and serve as a natural source of vitamin C along with bioflavonoids and other phytonutrients. In Endur-C, rose hips complement the ascorbic acid content and contribute plant-derived compounds that may support the antioxidant and immune-supportive activity of the overall formula.

How do I take Endur-C SR 1000mg?

Take one tablet daily, preferably with a meal, or as directed by a qualified healthcare professional. Do not crush or chew the sustained-release tablet, as this will disrupt the SmartMatrix delivery mechanism and result in immediate rather than extended release of the vitamin C content.

What are the other ingredients in Endur-C SR 1000mg?

Other ingredients include vegetable wax (rice bran and/or carnauba), stearic acid (vegetable), magnesium stearate (vegetable), and silica. The formula does not contain milk, egg, fish, shellfish, soy, peanuts, tree nuts, wheat, salt, sugar, starch, preservatives, artificial colors, or flavorings.

Who should consult a healthcare professional before use?

Individuals with a known medical condition, those taking prescription medications, and pregnant or nursing women should consult a qualified healthcare professional prior to use. Individuals with a history of kidney stones should discuss high-dose vitamin C supplementation with their healthcare provider before use. Keep out of reach of children.