10 Best Timed Release Vitamin C of 2026

Last updated on 04/03/2026
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Best Choice
1
9.7
Exceptional
SOLARAY Vitamin C 1000mg - Time Release Vitamin C Capsules w/Rose HIPS and Acerola for Bioflavonoid Support - Two-Stage, All-Day Immune Support - Vegan, 60 Day Guarantee, 275 Servings, 275 VegCaps
SOLARAY

SOLARAY Vitamin C 1000mg - Time Release Vitamin C Capsules w/Rose HIPS and Acerola for Bioflavonoid Support - Two-Stage, All-Day Immune Support - Vegan, 60 Day Guarantee, 275 Servings, 275 VegCaps

Why we love it
  • Supports healthy immune function.
  • Sustained release for better absorption.
  • Eco-friendly and conscientious manufacturing.
Main Highlights
  • Your Vitamin C Support – While you can find Vitamin C in many fruits and vegetables, the content of this essential antioxidant vitamin can become depleted through cooking or storage methods. Solaray Time Release Vitamin C supplement can help you achieve optimal levels.
  • Immune Defense & More – Our hardworking immune support supplement provides 1000 mg of Vitamin C with rose hips and acerola to help support absorption.* Vitamin C also helps with blood vessel health, antioxidant activity and heart health support.*
  • Time Release Vitamin C – Two-stage, sustained-release technology is designed to release half the Vitamin C rapidly for fast-acting support and the other half gradually to help extend the availability of the vitamin over a longer period for ongoing support.**
  • Eco-Friendly – To reduce our carbon footprint, Solaray bottles are made from post-consumer recycled resin, helping keep plastic out of our landfills and oceans. We’ve also begun installing solar panels as an alternative energy source at our Ogden, Utah, facility—to power the processes and products that help you Live Brighter.
  • Trusted Brand – Our Vitamin C capsules are vegan, made in our GMP-certified facility and tested in our own state-of-the-art lab in Utah to ensure purity and potency. Because we believe in the quality and efficacy of our products, each bottle comes with a 60-day money-back guarantee. **Based on in-vitro dissolution tests designed to simulate the digestive process. Individual results may vary.
9.7
Exceptional
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🛡️Trusted by 100M+ UsersWhy?
Best Value
2
9.5
Superb
GNC Vitamin C 1000mg Supplement, Timed Release, Provides Immune Support, 360 Servings
GNC

GNC Vitamin C 1000mg Supplement, Timed Release, Provides Immune Support, 360 Servings

Why we love it
  • High-quality timed-release formula.
  • Powerful immune support antioxidant.
  • Trusted brand since 1935.
Main Highlights
  • High-Quality: Get the benefits of timed-release vitamin c, plus citrus bioflavonoids in the convenience of a caplet!
  • Powerful Antioxidant: A protective antioxidant that provides immune support, vitamin c is essential for healthy bones, teeth, blood vessels and collagen
  • Backed By Science: Since 1935, GNC has been committed to meeting the highest standards of quality, safety, and efficacy while applying the most up-to-date advances in nutritional science so you can live well
  • No Sugar, No Starch, No Artificial Colors, No Artificial Flavors, No Preservatives, Sodium Free, No Wheat, Gluten Free, No Corn, No Soy, No Dairy
  • Timed-release, 360 vegetarian caplets, 360-day supply
9.5
Superb
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3
9.3
Superb
Purely Holistic Vitamin C 1000mg, 365 Capsules, 12 Month Supply, 2 Stage Timed Release with Ascorbic Acid, Rosehip & Acerola Cherry Bioflavonoid, Immune System Support, Vegan
Purely Holistic

Purely Holistic Vitamin C 1000mg, 365 Capsules, 12 Month Supply, 2 Stage Timed Release with Ascorbic Acid, Rosehip & Acerola Cherry Bioflavonoid, Immune System Support, Vegan

Why we love it
  • One year supply of capsules.
  • Timed release for maximum absorption.
  • Synergistic blend of natural sources.
Main Highlights
  • HIGH-STRENGTH VITAMIN C 1000MG: An essential nutrient, Vit C supports immune health, antioxidant activity, and everyday wellness and vitality. Our formula delivers a powerful Vitamina C 1000mg per once-daily capsule, for optimal support you can feel.*
  • DAILY IMMUNE SUPPORT: Vitamin C is renowned for supporting the immune system, and it plays a key role in maintaining the body’s defense systems. Designed for everyday use, our Vitamin C capsules help you to feel well, resilient, and vibrant - all year round.*
  • TIMED-RELEASE FOR SUSTAINED DELIVERY: Because Vitamins C is water-soluble, standard Vitamin C supplements are often quickly eliminated. Our formula releases 1000 mg Vitamin C gradually, with more Vitamin C 1000 mg available for your body to use over time.*
  • WITH ACEROLA CHERRY & ROSE HIPS: Acerola Cherry and Rose Hips are packed with Vitamin C and flavonoids, compounds known for their antioxidant properties. We’ve included both in our Vit C 1000mg capsules, for enhanced wellness and cellular health support.*
  • 1 YEAR SUPPLY: Each once-daily capsule contains 1000 mg Vitamin C, and every bottle contains 365 Vitamin C 1000mg capsules, for a 1-year supply of lasting support. Our Vitamin C capsules 1000mg are Vegan, Gluten-Free, and Non-GMO.
9.3
Superb
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4
9.1
Superb
SOLARAY Super Bio Vitamin C 1000mg, Buffered, Two-Stage Timed Release with Bioflavonoids, Immune Support Supplement, High Absorption, Vegan, 60-Day Guarantee – 250 VegCaps
SOLARAY

SOLARAY Super Bio Vitamin C 1000mg, Buffered, Two-Stage Timed Release with Bioflavonoids, Immune Support Supplement, High Absorption, Vegan, 60-Day Guarantee – 250 VegCaps

Why we love it
  • Supports immune system health.
  • Two-stage release for all-day use.
  • Eco-friendly packaging from recycled materials.
Main Highlights
  • Your Immunity Super C - Special Solaray Vitamin C complex supplies 1000 mg of vit C as ascorbic acid, rose hips and acerola, plus a bioflavonoid concentrate to support healthy immune system function and antioxidant processes in the body.*
  • Ongoing Support - Our two-stage, time release Vitamin C capsules are designed to release half the Vitamin C rapidly and the other half gradually throughout the day, which may help extend its availability to the body over a longer period of time.**
  • More C Benefits - This powerful antioxidant also helps support heart function.* Plus a base of calcium and magnesium makes our buffered vitamin C supplement easier on the stomach.
  • Eco-Friendly - To reduce our carbon footprint, Solaray bottles are made from post-consumer recycled resin, helping keep plastic out of our landfills and oceans. We’ve also begun installing solar panels as an alternative energy source at our Ogden, Utah, facility—to power the processes and products that help you Live Brighter.
  • Trusted Brand - Our vegan Vitamin C is made in our GMP-certified facility and tested in our own state-of-the-art lab in Utah to ensure purity and potency. Because we believe in the quality and efficacy of our products, each bottle of our Vitamin C 1000 mg comes with a 60-day money-back guarantee.
9.1
Superb
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5
9.1
Superb
Solaray Super Bio Buffered Vitamin C 1000mg, Two-Stage, Timed Release Vitamin C with Bioflavonoids, Immune Support Supplement - High Absorption, Vegan, 60 Day Guarantee, 180 Servings, 360 VegCaps 140
SOLARAY

Solaray Super Bio Buffered Vitamin C 1000mg, Two-Stage, Timed Release Vitamin C with Bioflavonoids, Immune Support Supplement - High Absorption, Vegan, 60 Day Guarantee, 180 Servings, 360 VegCaps 140

Why we love it
  • Powerful immune system support.
  • Time-released for all-day benefit.
  • Eco-friendly packaging and practices.
Main Highlights
  • Your Immunity Super C - Special Solaray Vitamin C complex supplies 1000 mg of vit C as ascorbic acid, rose hips and acerola, plus a bioflavonoid concentrate to support healthy immune system function and antioxidant processes in the body.*
  • Ongoing Support - Our two-stage, time release Vitamin C capsules are designed to release half the Vitamin C rapidly and the other half gradually throughout the day, which may help extend its availability to the body over a longer period of time.*
  • More C Benefits - This powerful antioxidant also helps support heart function.* Plus a base of calcium and magnesium makes our buffered vitamin C supplement easier on the stomach.
  • Eco-Friendly - To reduce our carbon footprint, Solaray bottles are made from post-consumer recycled resin, helping keep plastic out of our landfills and oceans. We’ve also begun installing solar panels as an alternative energy source at our Ogden, Utah, facility—to power the processes and products that help you Live Brighter.
  • Trusted Brand - Our vegan Vitamin C is made in our GMP-certified facility and tested in our own state-of-the-art lab in Utah to ensure purity and potency. Because we believe in the quality and efficacy of our products, each bottle of our Vitamin C 1000 mg comes with a 60-day money-back guarantee. **Based on in-vitro dissolution tests designed to simulate the digestive process. Individual results may vary.
9.1
Superb
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6
9.0
Superb
Save 7%
SOLARAY Vitamin C w/Rose HIPS & Acerola | 1000mg | Two-Stage Timed-Release Healthy Immune Function, Skin, Hair & Nails Support | Non-GMO | 250ct
SOLARAY

SOLARAY Vitamin C w/Rose HIPS & Acerola | 1000mg | Two-Stage Timed-Release Healthy Immune Function, Skin, Hair & Nails Support | Non-GMO | 250ct

7% Off
Why we love it
  • Supports immune function all day.
  • Timed release boosts vitamin C.
  • Supports collagen and bone health.
Main Highlights
  • Immune Support: All-day immune function support with 1000mg of Vitamin C & Bioflavonoids
  • Two-Stage Timed-Release: Designed to release half of the Vit C rapidly and the other half gradually
  • C the Benefits: Antioxidant activity; helps support collagen synthesis, cartilage/bone development
  • Inside-Out: Helps support capillary & blood vessel integrity, nerve impulse transmission & skin
9.0
Superb
Save 7%
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7
8.9
Excellent
Douglas Laboratories C-Max 1500 mg. | Time Released Vitamin C to Support Skin, Blood Vessels, Tendons, Joint Cartilage and Bone | 90 Tablets
Douglas Laboratories

Douglas Laboratories C-Max 1500 mg. | Time Released Vitamin C to Support Skin, Blood Vessels, Tendons, Joint Cartilage and Bone | 90 Tablets

Why we love it
  • Antioxidant support for health.
  • Supports tissue healing.
  • Legacy of science based nutrition.
Main Highlights
  • Antioxidant Support: Vitamin C is among the most powerful antioxidants in humans and animals.
  • Tissue Health: Vitamin C supports normal wound healing and capillary health.*
  • Vitamins/Minerals/Amino Acids: Our vitamins/minerals and amino acid formulas are developed to provide beneficial support in filling nutrient gaps.*
  • Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free.
  • For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential for healthy living, today and in the future.*
8.9
Excellent
Amazon Logo
8
8.8
Excellent
NOW Foods Supplements, Vitamin C-1,000 with Rose Hips, Sustained Release, Antioxidant Protection*, 250 Tablets
NOW Foods

NOW Foods Supplements, Vitamin C-1,000 with Rose Hips, Sustained Release, Antioxidant Protection*, 250 Tablets

Why we love it
  • Sustained release for lasting effects.
  • Infused with beneficial rose hips.
  • Vegan and non-GMO certified.
Main Highlights
  • SUSTAINED RELEASE: NOW Vitamin C-1000 was specially formulated to provide a sustained release of vitamin C, known for its vital role in the immune system
  • Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
  • WITH ROSE HIPS: Added source of vitamin C.
  • CERTIFICATIONS/CLASSIFICATIONS: Vegan/Vegetarian, Quality GMP Assured, Non-GMO, Soy Free, Kosher
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968.
8.8
Excellent
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9
8.7
Excellent
Save 20%
SOLARAY Vitamin C 500mg, Two-Stage Timed Release - Antioxidant and Immune Support Supplement - Vitamin C with Rose HIPS and Acerola, Vegan, Gluten Free, 60-Day Guarantee, 250 Servings, 250 VegCaps
SOLARAY

SOLARAY Vitamin C 500mg, Two-Stage Timed Release - Antioxidant and Immune Support Supplement - Vitamin C with Rose HIPS and Acerola, Vegan, Gluten Free, 60-Day Guarantee, 250 Servings, 250 VegCaps

20% Off
Why we love it
  • All-day immune function support.
  • Two-stage timed-release formulation.
  • Eco-friendly recycled packaging used.
Main Highlights
  • Your C Benefits - An essential nutrient, vitamin C is one of the most important supplements you can take for your immune system and your overall health.* Make it a part of your daily regimen.
  • Immunity Powerhouse - A strong immune support supplement, vitamin C is also a co-factor in the body's production of collagen. Solaray Vitamin C supplies 500 mg of this important antioxidant as ascorbic acid and 100 mg of our proprietary blend of rose hips and acerola cherry for additional support.*
  • Timed-Release Formula - Our two-stage, timed-release technology is designed to deliver vitamin C effectively for better utilization in the body.*
  • Making a Difference – To reduce our carbon footprint, Solaray bottles are made from post-consumer recycled resin, helping keep plastic out of our landfills and oceans; we’ve also installed solar panels as an additional energy source at our Ogden, Utah facility—to help power the processes and products that help you Live Brighter.
  • Trusted Brand – Vegan and gluten free, our vitamin C supplement is made in our GMP-certified facility and always tested in our in-house, state-of-the-art lab in Utah to bring you high-quality ingredients.
8.7
Excellent
Save 20%
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10
8.7
Excellent
Save 9%
Swanson Timed-Release Vitamin C with Rose Hips Immune System Support Skin Cardiovascular Health Antioxidant Supplement 1000 mg 250 Tablets
Swanson

Swanson Timed-Release Vitamin C with Rose Hips Immune System Support Skin Cardiovascular Health Antioxidant Supplement 1000 mg 250 Tablets

9% Off
Why we love it
  • Supports immune system health.
  • Enhances heart health naturally.
  • Scientifically formulated for quality.
Main Highlights
  • s can do a number on your body and one way to give your body the defensive support it is to make sure you're getting enough vitamin C. s can invade our bodies from the foods we eat, the air we breathe. Fortunately antioxidants, like the ones found in abundance in vitamin c, save our cells from damage by neutralizing s, potentially reducing or even preventing some unhealthy consequences
  • BOOSTS HEART HEALTH - Making sure that you're taking the proper amount of vitamin c benefits your heart health, by aiding your body's ability to support healthy levels of triglyceride levels within the normal range. Triglycerides are a form of fat that can be found within your blood, and can pose a problem when levels spike, and LDL cholesterol can form on the walls of your arteries. Combined with a healthy diet and plenty of exercise, taking a vitamin C supplement may be the heart health boost
  • SUPPORT FOR THOSE WITH IMPAIRED energy TOLERANCE - New research suggests increased vitamin C intake may be beneficial for those with impaired energy tolerance. While vitamin C supplementation has not been shown to specifically influence energy metabolism, research suggests that those with impaired energy tolerance may have increased needs for vitamin C.
  • FORMULATED WITH SCIENCE, CRAFTED WITH CARE: Based in Fargo, ND, our team of pharmacists, scientists, food nutritionists & quality experts ensure that every product is tested.
  • OUR QUALITY & HERITAGE - We're control freaks...in a good way! For nearly 5 years, Swanson Health has delivered science-backed health products worldwide. In 1969, we began in Fargo, ND with a mission to offer wellness solons that help people live simply healthier together. Our facilities are Good Manufacturing Practice (GMP) certified, and our purity and potency testing includes independent third-party labs. Clinical research, scientific consensus and usage traditions guide our innovation.
8.7
Excellent
Save 9%
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Related Deals You Might Like for Timed Release Vitamin C

📊We scanned 1283 products
🔍
We reviewed the most relevant Timed Release Vitamin C offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like SOLARAY, GNC, Purely Holistic, Douglas Laboratories, NOW Foods, Swanson, known for dependable quality and smart design.
⭐
To determine today's best Timed Release Vitamin C, we analyzed 6416 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

🏆 #1
SOLARAY Vitamin C 1000mg - Time Release Vitamin C Capsules w/Rose HIPS and Acerola for Bioflavonoid Support - Two-Stage, All-Day Immune Support - Vegan, 60 Day Guarantee, 275 Servings, 275 VegCaps

Our overall winner is SOLARAY Vitamin C 1000mg - Time Release Vitamin C Capsules w/Rose HIPS and Acerola for Bioflavonoid Support - Two-Stage, All-Day Immune Support - Vegan, 60 Day Guarantee, 275 Servings, 275 VegCaps by SOLARAY. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓Supports healthy immune function.
✓Sustained release for better absorption.
✓Eco-friendly and conscientious manufacturing.
💎 Best Value
GNC Vitamin C 1000mg Supplement, Timed Release, Provides Immune Support, 360 Servings

The best value for most shoppers is GNC Vitamin C 1000mg Supplement, Timed Release, Provides Immune Support, 360 Servings by GNC, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
SOLARAY Vitamin C 500mg, Two-Stage Timed Release - Antioxidant and Immune Support Supplement - Vitamin C with Rose HIPS and Acerola, Vegan, Gluten Free, 60-Day Guarantee, 250 Servings, 250 VegCaps

The strongest deal right now for Timed Release Vitamin C is SOLARAY Vitamin C 500mg, Two-Stage Timed Release - Antioxidant and Immune Support Supplement - Vitamin C with Rose HIPS and Acerola, Vegan, Gluten Free, 60-Day Guarantee, 250 Servings, 250 VegCaps at SOLARAY, currently at 20% off.

🔄Our Timed Release Vitamin C ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.