10 Best Ester C Vitamins 1000mg of 2026

Last updated on 04/02/2026
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Best Choice
1
9.7
Exceptional
Ester-C 1000 mg with Citrus Bioflavonoids American Health Products 90 Caps, 3 Count
American Health

Ester-C 1000 mg with Citrus Bioflavonoids American Health Products 90 Caps, 3 Count

Why we love it
  • 24-hour immune support guaranteed.
  • Gentle on the stomach always.
  • Optimal absorption for better health.
Main Highlights
  • American Health Products
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
9.7
Exceptional
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Best Value
2
9.5
Superb
Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex) - 180 Tablets - Gentle & Non Acidic - Supports Upper Respiratory Health - Non-GMO, Gluten-Free - 180 Servings
Solgar

Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex) - 180 Tablets - Gentle & Non Acidic - Supports Upper Respiratory Health - Non-GMO, Gluten-Free - 180 Servings

Why we love it
  • Gentle on sensitive stomachs.
  • Supports immune health effectively.
  • Trusted quality for over 70 years.
Main Highlights
  • Gentle on the Stomach; No other vitamin C gives you what Ester-C does; Solgar Ester-C Plus 1000 mg Vitamin C offers a unique, non-acidic vitamin C that’s gentle on the stomach
  • Upper Respiratory Support; Every dose offers immune support and supports upper respiratory health; What’s more, Ester-C is clinically studied to stay in your white blood cells for up to 24 hours
  • Highly Absorbable; Our special manufacturing process creates a unique calcium ascorbate metabolite complex; Less acidic, pH-neutral vitamin C for sensitive stomachs; Easy to digest, highly absorbable
  • Non-GMO & Gluten Free; These tablets are free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener and color
  • The Gold Standard; For over 70 years Solgar has been committed to quality, health, and well-being; Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials
9.5
Superb
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3
9.4
Superb
Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count
Ester-C

Ester-C American Health with Citrus Bioflavonoids Capsules - 24-Hour Immune Support, Gentle On Stomach, Non-Acidic Vitamin C - Non-GMO, Gluten-Free - 1000 mg, 90 Count

Why we love it
  • 24-Hour Immune Support formula.
  • Gentle and non-acidic formulation.
  • Enhanced absorption with bioflavonoids.
Main Highlights
  • 24-Hour Immune Support; Ester-C delivers 24-hour immune support, so one daily serving of 1000 mg is all you need; As a potent antioxidant, it helps fight free radicals, which can cause oxidative stress that may lead to the premature aging of cells
  • Gentle On The Stomach; Ester-C's water-based manufacturing process neutralizes pH, making it non-acidic and gentle on the stomach
  • Optimal Absorption; Added citrus bioflavonoids may help your body better absorb and utilize Vitamin C
  • Naturally-Occurring Metabolites; The naturally-occurring metabolites in Ester-C may help enhance the retention of Vitamin C in your white blood cells, an important part of your immune system
  • No gluten, no yeast, no wheat, milk or milk derivatives, no lactose, no soy, no egg, no grapefruit, no sugar, no artificial flavors, no sodium; Non-GMO
9.4
Superb
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4
9.3
Superb
Save 10%
American Health Ester-Vitamin C with Citrus Bioflavonoids 1Vitamin 000 Milligrams 180 Veg Tabs
American Health

American Health Ester-Vitamin C with Citrus Bioflavonoids 1Vitamin 000 Milligrams 180 Veg Tabs

10% Off
Why we love it
  • 24-hour immune support guaranteed.
  • Potent antioxidant protection provided.
  • Gentle on the stomach formula.
Main Highlights
  • Immune system unsupported when you need it most
  • Just once a day and your immune system will see the difference
  • Ester-c is non-acidic and stomach friendly
  • Manufactured by American Health
9.3
Superb
Save 10%
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5
9.2
Superb
American Health Ester-C 1000 mg with Bioflavonoids Capsules 24Hour Immune Support Gentle on Stomach NonAcidic Vitamin C NonGMO Gluten-Free Servings, Citrus, 105 Count
American Health

American Health Ester-C 1000 mg with Bioflavonoids Capsules 24Hour Immune Support Gentle on Stomach NonAcidic Vitamin C NonGMO Gluten-Free Servings, Citrus, 105 Count

Why we love it
  • 24-hour immune support formula.
  • Gentle on stomach for comfort.
  • Optimal absorption with bioflavonoids.
Main Highlights
  • 24-Hour Immune Support; Ester-C delivers 24-hour immune Support, so one daily serving of 1000 mg is all you need; as a potent antioxidant, it helps fight free radicals, which can cause oxidative stress that may lead to the premature aging of cells
  • Gentle on the stomach; Ester-C's water-based manufacturing process neutralizes pH, making it non-acidic and gentle on the stomach
  • Optimal absorption; added Citrus Bioflavonoids may help your body better absorb and utilize Vitamin C
  • Naturally-Occurring Metabolites; The naturally-occurring metabolites in Ester-C may help enhance the retention of Vitamin C in your white blood cells, an important part of your immune system
  • Suitable for vegetarians & Vegans; no gluten, No Yeast, No Wheat, No Milk or milk derivatives, no Lactose, No Soy, No Egg, No grapefruit, no sugar, No artificial flavors, No Sodium; non-GMO
9.2
Superb
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6
9.1
Superb
Emergen-C 1000mg Vitamin C Powder for Daily Immune Support Caffeine Free Vitamin C Supplements with Zinc and Manganese, B Vitamins and Electrolytes, Super Orange Flavor - 60 Count/2 Month Supply
Emergen-C

Emergen-C 1000mg Vitamin C Powder for Daily Immune Support Caffeine Free Vitamin C Supplements with Zinc and Manganese, B Vitamins and Electrolytes, Super Orange Flavor - 60 Count/2 Month Supply

Why we love it
  • Delicious Super Orange flavor.
  • Boosts daily immune support.
  • Easy to mix and dissolve.
Main Highlights
  • A 60 count/2 month supply of Super Orange-flavored Emergen-C 1000mg Vitamin C Powder for Daily Immune Support (1), Caffeine Free Dietary Supplements with Zinc and Manganese, B Vitamins and Electrolytes
  • B vitamins for energy support and electrolytes to help replace those lost through perspiration (1)
  • Dietary supplements that support immune health with more vitamin C per serving than 10 oranges (2)
  • Dietary supplement that supports immune health (1) with antioxidants such as vitamin C, zinc and manganese, as well as having B vitamins and electrolytes
  • The 1,000 mg vitamin C packets with delicious and refreshing natural orange flavor and natural sweeteners
  • Available in powdered vitamin mix form that easily dissolves in water
  • Mix one packet with 4 to 6 oz of water
9.1
Superb
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7
8.9
Excellent
Solgar, Vitamin C W Ester Plus 1000mg, 180 Count
Solgar

Solgar, Vitamin C W Ester Plus 1000mg, 180 Count

Why we love it
  • Gentle on sensitive stomachs.
  • Supports immune health effectively.
  • Non-GMO and gluten-free formula.
Main Highlights
  • Gentle on the Stomach; No other vitamin C gives you what Ester-C does; Solgar Ester-C Plus 1000 mg Vitamin C offers a unique, non-acidic vitamin C that’s gentle on the stomach
  • Upper Respiratory Support; Every dose offers immune support and supports upper respiratory health; What’s more, Ester-C is clinically studied to stay in your white blood cells for up to 24 hours
  • Highly Absorbable; Our special manufacturing process creates a unique calcium ascorbate metabolite complex; Less acidic, pH-neutral vitamin C for sensitive stomachs; Easy to digest, highly absorbable
  • Non-GMO & Gluten Free; These tablets are free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener and color
  • The Gold Standard; For over 70 years Solgar has been committed to quality, health, and well-being; Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials
8.9
Excellent
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8
8.9
Excellent
Ester-C Vitamin C 1000 mg Coated Tablets, Immune System Booster, Stomach-Friendly Supplement, 120 Count
Ester-C

Ester-C Vitamin C 1000 mg Coated Tablets, Immune System Booster, Stomach-Friendly Supplement, 120 Count

Why we love it
  • Immune support for 24 hours.
  • Gentle and non-acidic formula.
  • Antioxidant properties protect cells.
Main Highlights
  • Ester-C tablets give you immune system support at the cellular level for up to 24 hours to maintain a healthy immune system (1); Ester-C is non-acidic and gentle on your stomach so you can comfortably take it every day
  • Ester-C tablets give your immune system the support it needs while also providing your body with antioxidant vitamin C to help fight free radicals (1); One tablet a day can give your body the immune support it needs 24/7 (1)
  • Ester-C also contains C-Sorb which is a citrus bioflavonoids complex; Ester-C along with C-Sorb & naturally occurring metabolites works synergistically to enhance the retention of Vitamin C in your body to support your immune system for 24 hours (1)
  • Ester-C 1000mg tablets provide the immune support you can count on all day every day (1); A daily dose of Ester-C tablets gets absorbed into your white blood cells and stays there for up to 24 hours which is longer than regular Vitamin C supplements (1)
  • Ester-C is manufactured without chemicals to neutralize pH which means it's non-acidic & gentle on your stomach (1)
8.9
Excellent
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9
8.8
Excellent
Save 12%
Ester-C Vitamin C, 1,000 mg, 90 Coated Tablets
Ester-C

Ester-C Vitamin C, 1,000 mg, 90 Coated Tablets

12% Off
Why we love it
  • Immune support for 24 hours.
  • Gentle on your stomach daily.
  • Contains antioxidant vitamin C.
Main Highlights
  • Ester-C tablets give you immune system support at the cellular level for up to 24 hours to maintain a healthy immune system* Ester-C is non-acidic, so it's stomach-friendly Ester-C is gentle on your stomach so you can comfortably take it every day
  • 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
  • Ester-C tablets give your immune system the support it needs, while also providing your body with antioxidant vitamin C to help fight free radicals* One tablet a day can give your body the immune support it needs 24/7*
  • Ester-C also contains C-Sorb, a citrus bioflavonoids complex Ester-C, along with C-Sorb & naturally occurring metabolites, works synergistically to enhance the retention of Vitamin C in your body, supporting your immune system for 24 hours*
  • Ester-C 1000mg tablets provide the immune support you can count on all day, every day* A daily dose of Ester-C tablets gets absorbed into your white blood cells and stays there, for up to 24 hours, which is longer than regular Vitamin C supplements*
  • Ester-C is manufactured without chemicals to neutralize pH, which means it's non-acidic & gentle on your stomach*These statements have not been evaluated by the FDA These products are not intended to diagnose, treat, cure or prevent any disease
8.8
Excellent
Save 12%
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10
8.7
Excellent
Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex), 90 Tablets - Gentle On The Stomach & Non Acidic - Antioxidant & Immune System Support - Non GMO, Vegan, Gluten-Free, Kosher - 90 Servings
Solgar

Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex), 90 Tablets - Gentle On The Stomach & Non Acidic - Antioxidant & Immune System Support - Non GMO, Vegan, Gluten-Free, Kosher - 90 Servings

Why we love it
  • Well-retained Vitamin C benefits.
  • Unique, easy-to-digest formula.
  • Supports immune health and collagen.
Main Highlights
  • Well-Retained; The Vitamin C metabolites in Ester-C positively impact retention of Vitamin C in cells; This complex yields beneficial antioxidant and immune system support; Includes natural bioflavonoids, acerola berry, and rose hips fruit powder
  • Unique Formula; Special manufacturing process creates a unique calcium ascorbate metabolite complex; Less acidic, pH neutral Vitamin C for sensitive stomachs; Easy to digest, highly-absorbable
  • Immune Support & More; Solgar Ester-C Plus 1000 mg Vitamin C Tablets also contribute to collagen formation for healthy skin and cartilage; Increases iron absorption
  • Non-GMO, Vegan, Kosher & Gluten Free; Solgar Ester-C Tablets with 1000 mg of Vitamin C are free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, and color
  • The Gold Standard: For over 70 years Solgar has been committed to quality, health, and well-being. Our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest raw materials
8.7
Excellent
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Related Deals You Might Like for Ester C Vitamins 1000mg

📊We scanned 763 products
🔍
We reviewed the most relevant Ester C Vitamins 1000mg offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like American Health, Solgar, Ester-C, Emergen-C, known for dependable quality and smart design.
⭐
To determine today's best Ester C Vitamins 1000mg, we analyzed 3816 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
Ester-C 1000 mg with Citrus Bioflavonoids American Health Products 90 Caps, 3 Count

Our overall winner is Ester-C 1000 mg with Citrus Bioflavonoids American Health Products 90 Caps, 3 Count by American Health. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓24-hour immune support guaranteed.
✓Gentle on the stomach always.
✓Optimal absorption for better health
💎 Best Value
Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex) - 180 Tablets - Gentle & Non Acidic - Supports Upper Respiratory Health - Non-GMO, Gluten-Free - 180 Servings

The best value for most shoppers is Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex) - 180 Tablets - Gentle & Non Acidic - Supports Upper Respiratory Health - Non-GMO, Gluten-Free - 180 Servings by Solgar, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
Ester-C Vitamin C, 1,000 mg, 90 Coated Tablets

The strongest deal right now for Ester C Vitamins 1000mg is Ester-C Vitamin C, 1,000 mg, 90 Coated Tablets at Ester-C, currently at 12% off.

🔄Our Ester C Vitamins 1000mg ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.