17 Best Vitamin C Supplements 2021: Reviews and Prices

Vitamin C is an essential nutrient which cannot be produced by humans (Nutrients. 2017). Because your body doesn't produce or store it, you need daily vitamin C for continued health. Vitamin C may be one of the most well-known immune nutrients that protect against immune deficiencies and which supports the prevention and recovery from the common cold and upper-respiratory issues, and also protects your cardiovascular system, eyes, skin, and other parts of your body.
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Vitamin C is a particularly unique nutrient because it also functions as an antioxidant that protects your cells against potential damage (NIH).

Vitamin C deficiency is rare in developed countries, but inadequate intake can lead to symptoms like dry skin, achy joints, bleeding gums, and poor wound healing.

Acute vitamin C deficiency is known as scurvy and potentially fatal if left untreated.

If you smoke, have kidney disease, take certain medications, or consume a very limited diet, you may be at an increased risk of vitamin C deficiency.

Vitamin C can be found in a variety of whole, plant-based foods like citrus fruits, bell peppers, strawberries, and broccoli. Obtaining nutrients from whole foods is always the best approach, but if you have difficulty meeting your nutrition needs for any reason, a supplement may be necessary.

The supplements on this list were chosen based on quality, manufacturing standards, usability, and price.

Here are the 17 best vitamin C supplements of 2021.

1–4. Best Vitamin C Capsules

Capsules are the most popular form of vitamin C supplements. These are among the best on the market.


1. Kirkland Signature’s Vitamin C

Kirkland Signature Vitamin C







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More than 2,000 customer reviews and a 4.8 out of 5 overall rating on Amazon.

Kirkland Signature provides an affordable alternative to expensive, high-end supplement brands without sacrificing quality.

Each of their vitamin C capsules contains a 1,000 mg dose of vitamin C and citrus-derived flavonoids for an added antioxidant boost. Kirkland Signature’s vitamin C capsules are verified for purity and quality by United States Pharmacopeia (USP), so you can rest assured you’re getting exactly what the label claims.


2. American Health Ester-C with Citrus Bioflavonoids Veg Tablets




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Dosage: 1000mg/tablet
American Health Non-Acidic Vitamin C Price: $31.95 (180 Tablets)
> Best Non Acidic Vitamin C

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. Ester-C’s water-based manufacturing process neutralizes pH, making it non-acidic and gentle on the stomach. Moreover, it is added with citrus bioflavonoids – may help your body better absorb and utilize Vitamin C.

Their ingredients are made with 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.

Ratings:
4.7 out of 5 – 2,595 global ratings

Review:

I started using Ester-C 1000 mg last year. Throughout last winter I was repeatedly exposed to the flu and pneumonia in my work office, and my immune system stayed strong. The worst I had was a sniffle for a couple days and that was it. My husband and my son also take this product and they have not been sick either. I just purchased four more bottles and I will use it throughout this whole winter again. I take up to 7,000 mg a day when people around me are sick in my office; My husband and my son do the same thing. I am 5 ft tall 150 lbs. I have used other types of vitamin c in the past but I never had the positive results I had with Esther c.


3. Vitamin C by Nature's Bounty 500mg, Tablets



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Dosage: 500mg/tablet
Vitamin C by Nature’s Bounty Price: $19.46 (100 Tablets)
> Best Vitamin C Supplement for Iron Absorption

100-count, 500mg * Vitamin C is one of the leading nutritional vitamins for immune support.* People reach for Vitamin C by Nature’s Bounty to help them maintain a healthy immune system all year long.* Best Vitamin C for Immune System

Nature’s Bounty Vitamin C Tablets play an important role in the functioning of white blood cells, which are vital components of the immune system.* In addition, it is also support antioxidant health.* Moreover, Vitamin C is one of the best antioxidants for fighting the free radicals.* Free radicals can cause oxidative stress that may lead to premature aging of the cells.

Nature’s Bounty is committed to safety and purity in all our supplements. Our Vitamin C Tablets are non-GMO, gluten- and sugar-free, and contain no artificial colors, or sweeteners.

Ratings
4.8 out of 5 – 573 global ratings

Review
I use vitamin c so iron will more easily absorb into my system. I was able to stop my iron supplement and maintain a higher hemoglobin level after taking this!! But, this was followed closely by a physician.


4. Solgar Ester-C Plus 1000 mg Vitamin C



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Dosage: 1000mg/tablet
Solgar Ester-C Plus 1000 mg Vitamin C (Ascorbate Complex) Price: $27.36 (180 Tablets)
> Vitamin C and Bioflavonoids Supplement

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. Moreover, 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, Halal and 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

Ratings
4.8 out of 5 – 1,037 global ratings

Review
I have used Solgar Ester C for over 15 years and it has always worked well. I believe it has helped maintain my immunity and kept me from getting colds or having other issues.


5-8. Best Chewable Vitamin C

5. NOW Foods’ Chewable C 500

NOW Foods Chewable C 500







More than 490 customer reviews and a 4.7 out of 5 overall rating on Amazon.
> Best Vegan Vitamin C Supplement  

If you’re not a fan of swallowing pills, NOW Foods’ chewable vitamin C tablets may be the product for you.

NOW Foods is a reputable brand that produces a variety of affordable, high quality nutritional supplements.

Each orange-flavored tablet provides a 500-mg dose of vitamin C and contains just 1 gram of added sugar. They’re also 100% vegan and free of major allergens. NOW Foods prides themselves on their meticulous testing protocols. Each supplement is tested in-house for purity and potency, and all of their manufacturing facilities are certified by the Food and Drug Administration (FDA).


6. Nature Made Extra Strength Vitamin C Chewable Tablet 1000mg




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Dosage: 1000mg (2 Tablets)
Nature Made Vitamin C for Immune Support, Antioxidant Support Price: $14.99 (90 Tablets)
#3 Best Sellers in Vitamin C Supplements on Amazon
> Vitamin C Tablets for Skin Whitening

Vitamin C is an antioxidant and essential nutrient to support health. This chewable Vitamin C is an easy and tasty way to get the immune support you need, every day. Moreover, Vitamin C is also an essential part of collagen synthesis which helps support skin health. For Adults chew 2 tablets daily. Contains 90 tablets, a 45-day supply.

Nature Made is quality tested in the USA, our ingredients are made without artificial flavors and color added, lactose-free. Orange with other natural flavors. This chewable vitamin is also USP Verified, an independent organization that tests for quality and purity. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Ratings
4.7 out of 5 – 3,089 global ratings

Review
I didn’t realize these were chewable when I bought them but I am glad they are. I wouldn’t normally prefer that but these have a citrus flavor which is pretty nice. If you are looking for a high dose Vitamin C supplement these have worked well for me.


7. 21st Century Vitamin C 500 mg Chewable Tablets



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Dosage: 500mg/tablet
21st Century Vitamin C 500 mg Chewable Tablets, Orange Price $9.40 (110 tablets)
> Chewable Vitamin C for Adults

Delicious natural orange flavor. 110 full-serving tablets with 500 mg vitamin C per serving. Vitamin C helps neutralize free radicals and support a healthy immune system.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Ratings
4.5 out of 5 – 2,008 global ratings

Review
I find these to be delish! Really a nice orange flavor and there is no icky after taste. 5 stars!


8. Airborne KIDS Vitamin C 500mg Chewable Tablet




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Dosage: 500mg/2tablets
Airborne KIDS Vitamin C Very Berry Chewable Tablets Price: $13.45
> Chewable Vitamin C for Kids

This is a unique Vitamin, Mineral and Herbal blend that helps support your immune system. This GLUTEN FREE supplement is high in antioxidants (Vitamins A C E) and contains Zinc, Selenium and Manganese.

Airborne is the no.1 Immune Support Gummy, Effervescent and Chewable Brand. These tablets are easy and convenient for your family to take at home or on the go. Vitamin C is among the most important antioxidants in immune health.

Each tablet contains a specially crafted blend of vitamins and minerals to help support your immune system. One serving of (2) chewable tablets provides 500mg of VITAMIN C.

Rating
4.7 out of 5 – 2,770 global ratings

Review
My son it’s 7 yrs old and he loves this vitamin C it does have a little sour taste so if your kids like sour than they would enjoy them!

9-10. Best Vitamin C Gummies

Gummy vitamins are one of the hottest trends in nutrition supplements — and understandably so. Whether you’re a kid — or a kid at heart — taking your vitamin C has never been easier or more delicious.

However, although gummy vitamins are convenient and taste great, they should not be confused with candy.

It’s important that you don’t exceed the recommended dose, as too much vitamin C could lead to unintended side effects. Like other supplements, be sure to store them away from little ones to avoid a potential overdose.


9. Nordic Naturals’ Vitamin C Gummies

Nordic Naturals vitamin C gummies







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> Best Natural Vitamin C Supplement

Nordic Naturals’ vitamin C gummies are made from high quality, natural ingredients and suitable for adults and children over the age of 4.

Each 2-gummy serving contains 250 mg of vitamin C and 4 grams of added sugar.

The orange-flavored gummies are sweetened with cane sugar and colored with natural fruit and vegetable juices. They don’t contain any artificial sweeteners or flavors and are gluten- and dairy-free.
Nordic Naturals’ vitamin C gummies are third-party tested for purity and potency, so you know you’re getting what you have paid for.


10. Carlson Labs’ Kid’s Vitamin C Gummies

Carlson Labs Kid's Vitamin C Gummies







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Carlson Labs’ Vitamin C Gummies for kids are a great option if you’re looking for a quality supplement specifically designed with your children in mind.

Each orange-flavored gummy provides 125 mg of vitamin C and contains only 2 grams of added sugar. They don’t harbor any artificial colors, sweeteners, or preservatives and are 100% gluten- and soy-free.

When it comes to quality, Carlson Labs has been an industry leader since 1965. All of their products are manufactured in an FDA-certified facility and come with a purity and potency guarantee.

11-12. Best Liquid Vitamin C

Liquid supplements are a convenient option for anyone looking for a supplement that can be easily mixed into beverages and absorbed quickly.

11. Pure Encapsulations’ Liposomal Vitamin C Liquid

Pure Encapsulations Liposomal Vitamin C Liquid







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Pure Encapsulations’ Liquid vitamin C is made with a unique, liposomal form of vitamin C that’s encapsulated in sunflower oil.

Research suggests that liposomal forms of vitamin C may boost your body’s absorption, so you get more out of each dose (PubMed).

Trusted Source

Each teaspoon (5 mL) provides 1,000 mg of vitamin C and doesn’t contain any added sugars or artificial sweeteners.

All of Pure Encapsulations’ products are certified gluten-free and third-party tested for quality, purity, and potency.


12. Liquid Drops Vitamin C for Kids Immune Support



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Dosage: 2ml or 1/2 full droppers equal to 50mg
JoySpring Kids Vitamin C, Zinc, and Elderberry Liquid Price: $24.99 -2 Fl Oz (Pack of 1)
Amazon’s Choice for “liquid vitamin c for kids
> Liquid Vitamin C for Kids

Unlike other kids vitamin c, this combines the strength of not 1, but 3 immune boosting ingredients. Fortified with Zinc, Elderberry & Vitamin C for kids, these liquid drops help protect immune system. It helps fight harmful ailments & a speedy recovery.

This vitamin c for kids can mixed with food or drink. While all of JoySpring’s products are family friendly, it is recommended you speak with your physician when introducing any new supplements to children under the age of 18.

Rating
4.6 out of 5 – 691 global ratings

Review
I like thst it comes in a dropper and I don’t have to fight my toddler to take them

13. Best Liposomal Vitamin C

13. Dr. Mercola Liposomal Vitamin C




> Best Vitamin C for Stomach

Dr. Mercola's Liposomal Vitamin C employs advanced liposomal technology that helps transport vitamin C molecules across your gut membrane for enhanced bioavailability potential.*

The phospholipids in our formula aid in the formation of protective liposomes in the stomach and help to reduce the potential of gastrointestinal distress typically associated with traditional oral vitamin C.*

Delivered in high-quality, tightly sealed protective Licaps® capsules, our Liposomal Vitamin C is available in 1,000 mg for adults, and our Liposomal Vitamin C for Kids contains a tiny 125 mg capsule for children, 4 years old and older.

*These statements have not been evaluated by the Food and Drug Administration.
These products are not intended to diagnose, treat, cure, or prevent any disease.


Amazon Ratings: 4.7 out of 5 - more than 5,000 ratings.

Related Products for Immune Support:

14–17. Best Vitamin C Powder

Powdered supplements are a great, flexible option. Whether you plan on drinking them mixed into juices and smoothies or want to fill your own capsules with customized doses, powdered vitamin C is the way to go.

14. Swanson’s Vitamin C Powder

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Swanson’s vitamin C powder contains nothing but 100% pure, powdered vitamin C.

It dissolves easily into almost any liquid, and you don’t have to worry about any added fillers, sweeteners, or preservatives.

Each scoop provides 1,000 mg of vitamin C, but you can tailor the serving size to fit your needs.

When it comes to purity and quality, Swanson holds themselves to exceptionally high standards. All of their supplements undergo in-house and third-party testing, so you can rest assured you’re getting a great product every time.


15. Bulk Supplements’ Vitamin C Powder

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Bulk Supplements’ vitamin C powder is pure vitamin C without any added ingredients, such as preservatives, sugars, or fillers.

Each scoop provides a 750-mg dose, but like other powdered supplements, it’s easy to adjust the serving to meet your needs.

All of Bulk Supplements’ products are produced in an FDA-approved facility and third-party tested for purity and potency.


16. Emergen-C 1000mg Vitamin C Powder



More than 14,000 customer reviews and #2 in Vitamin C Supplements of Amazon Best Sellers

About this item
  • Includes 30 single-serving packets (0.32 oz. each) of Emergen-C Original Formula in Super Orange flavor
  • Each serving provides daily immune support* with more Vitamin C than 10 oranges (Based on the USDA.gov nutrient database value for a large, raw orange).
  • Also contains B Vitamins, Electrolytes, and other Antioxidants like Zinc and Manganese
  • Flavored vitamin mix is made with natural fruit flavors for a delicious Super Orange taste
  • Vitamin C drink mix is a powder that dissolves quickly in water; it’s refreshing and caffeine-free
  • Enjoy Emergen-C Original Formula Vitamin C supplement every day for routine wellness
  • Emergen-C Original Formula is also available in gummy and chewable forms
  • Vitamin C Powder for Immune System


17. Nutricost Ascorbic Acid Powder (Vitamin C)



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Dosage: 1 Gram Per Serving (Scoop Included)
Nutricost Ascorbic Acid Powder 2 LBS Price: $24.95
> Non GMO Vitamin Supplement
> Best Vitamin C Supplement for Skin

Ascorbic Acid (Vitamin C) is an essential vitamin. Vitamin C is an important factor in many of the body’s various life-giving and life-maintaining functions including the successful operation of the immune system. Unfortunately, our bodies cannot naturally produce Vitamin C. This means that although it is an essential vitamin, it must be replenished every day in order for good health to be maintained.

Pure, High-Quality Powder. No Binders Or Fillers. Non-GMO, Gluten-Free, 3rd Party Tested. Made in a GMP Compliant, FDA Registered Facility

Rating:
4.7 out of 5 – 3,031 global ratings

Review:
I bought this product because I was searching for a Vit C powder without GMO. My Dermatologist suggested I make a Vit. C serum for damage skin on my face & chest. I’ve had very good results. I returned to my Dr. after using it only 2 1/2 months & she saw remarkable changes/healing. She wanted me to up it a little for my nose but the rest of my face & my chest had dramatic healthy skin changes. I did not expect to find these changes at my age. I highly recommend this if you want to make a Vit. C serum for rejuvenating your skin & heal or prevent aging skin issues.



FAQs

1. How to choose

Selecting the right vitamin C supplement depends on a variety of factors, including the form, quality, dose, and price.

You can start by considering how you’ll be using the supplement. For instance, if you prefer to take a pill, you’ll want to check out encapsulated vitamin C supplements.

If you don’t like swallowing pills or want to mix it into beverages, your best bet is to consider liquid or powdered supplements.

Next, you want to check the supplement’s quality. Evaluate whether a brand is reputable by exploring their ingredient sourcing and manufacturing standards. A good product will also be tested by third-party organizations, such as USP, Consumer Labs, or NSF International.

Take a look at added ingredients, too. If you’re trying to limit your intake of added sugars, you want to opt for a supplement that doesn’t contain sugar.

Another factor to consider is the dosage. The recommended daily amount of vitamin C for adults is 90 mg for men, 75 mg for women, and up to 120 mg for women who are pregnant or breastfeeding. However, certain medical conditions may require that you take much higher doses (NIH).

Children have lower vitamin C requirements, which range from 25–75mg per day, depending on their age. However, it’s not generally advised to give children a vitamin C supplement unless their pediatrician has recommended it.

Note that the Tolerable Upper Intake Level (UL) for vitamin C for men, as well as women ages 19 and above, is 2,000 mg. Meanwhile, the UL for children ranges from 400–1,800 mg, depending on age. Daily intakes at or below these amounts are unlikely to result in any adverse health effects (NIH).

Vitamin C supplements come in a wide range of dosage options. If you’re looking for a high dose, it may be more economical and convenient to find a concentrated supplement. This way you won’t be stuck consuming multiple servings of a lower dose option.

Generally, high doses of vitamin C are unnecessary and could contribute to harmful side effects. Only consume high doses if your healthcare provider recommends doing so.

Finally, you want to consider your budget. Some professional-grade brands can be expensive, but keep in mind that a higher price doesn’t necessarily mean a better product. There are plenty of high quality options available at various price points.

2. Possible side effects

Although vitamin C is a natural compound, getting too much of it can cause uncomfortable and potentially serious side effects.

Some of the most common reported side effects include headaches, flushed skin, nausea, and vomiting (NIH).Trusted Source

Consuming high doses of vitamin C for prolonged periods may also increase your risk of kidney stones (NIH).

Always consult your healthcare provider prior to adding any nutritional supplement to your routine.


3. Benefits of Vitamin C

Skin health
Remembering that Vitamin C has an important role in collagen formation, Vitamin C may help to heal damaged skin, as well as keeping it nourished and healthy. Moreover Vitamin C is important for antioxidant protection which help to give skin protection against oxidative damage produced by free radicals, UV, and pollution.

Anti-inflammatory effect
In hypertensive and/or diabetic obese patients, vitamin C (500 mg twice daily) has the ability to reduce inflammatory status by lowering hs-CRP, IL-6, and FBG. [Trusted Source]

Boost Immunity
One of the main reasons people take vitamin C supplements is to boost their immunity, as vitamin C is involved in many parts of the immune system.
First, vitamin C helps encourage the production of white blood cells known as lymphocytes and phagocytes, which help protect the body against infection (PubMed).
Second, vitamin C helps these white blood cells function more effectively while protecting them from damage by potentially harmful molecules, such as free radicals.

Other benefits of Vitamin C
A review of 28 studies (Diabetes Care. 2021 Feb) in 1,574 people with type 2 diabetes mellitus, demonstrated that vitamin C supplementation may improve blood sugar control and blood pressure in people with type 2 diabetes.

People who have pneumonia tend to have lower vitamin C levels, and vitamin C supplements have been shown to shorten the recovery time (PubMedPubMed).

A large review of 29 studies in 11,306 people demonstrated that regularly supplementing with vitamin C at an average dose of 1–2 grams per day reduced the duration of colds by 8% in adults and 14% in children (PubMed).

Interestingly, the review also demonstrated that regularly taking vitamin C supplements reduced common cold occurrence in individuals under high physical stress, including marathon runners and soldiers, by up to 50% (PubMedPubMed).

Additionally, high dose intravenous vitamin C treatment has been shown to significantly improve symptoms in people with severe infections, including sepsis and acute respiratory distress syndrome (ARDS) resulting from viral infections (PubMedPubMed).



In contrast, all steady state comparative bioavailability studies in humans have shown no differences between synthetic and natural vitamin C, regardless of the subject population, study design or intervention used.

5. Can Vitamin C prevent Coronavirus?

A review, published December 7, 2020, in the journal Nutrients, recommended the use of vitamin C as an additional therapy for respiratory infections, sepsis and COVID-19.

In December 16, 2020, Rob Verkerk, Ph.D., founder and scientific director of the Alliance for Natural Health, announced the launch of an international vitamin C campaign in response to the Nutrients review, which "puts all the arguments and science in one, neat place."

However, large controlled studies demonstrating vitamin C's effectiveness in COVID-19 are still lacking. There are many such studies underway and you can review the status of these trials on clinicaltrials.gov. As of January 2021, more than 50 studies have been launched to investigate the benefits of vitamin C against COVID-19.

The National Institutes (NIH) Panel has determined that there are insufficient data to recommend either for or against the use of Vitamin C for the treatment of non-critically ill COVID-19 (last updated November 2020).

At the Cleveland Clinic, researchers are enrolling people into a study to see if vitamin C or zinc — or a combination of the two — can reduce the duration of COVID-19 symptoms. Patients will be given the supplements after they have tested positive for COVID-19.

Currently, no definitive evidence supports the use of oral vitamin C supplements to prevent COVID-19.

Vitamin C may help shorten the duration and severity of colds caused by other viruses, but this is no guarantee that it will have the same effect on the coronavirus that causes COVID-19.

Additionally, vitamin C is a water-soluble vitamin. It dissolves in water, meaning that excess amounts aren’t stored in your body but instead eliminated through your urine. Taking more vitamin C does not mean that your body is absorbing more (nih).

High dose vitamin C supplements may even cause diarrhea, as they can signal your body to pull water out of the cells and into your digestive tract (NIH).

Moreover, although high dose vitamin C appears promising for COVID-19 treatment, these doses were exceptionally high and given via IV — not taken orally. Additionally, it was only given in cases severe enough to require hospitalization.

Your best bet is to eat a diet that’s full of a variety of fruits and vegetables, which naturally provide all the vitamin C a healthy person needs — along with many other nutrients and antioxidants.

Conclusion

Vitamin C is an essential nutrient that plays a diverse role in keeping your body healthy. Although vitamin C deficiency is rare in developed countries, it can cause serious health problems that, if left untreated, could be fatal.If you have trouble getting enough vitamin C from your diet, supplements are a great option. They come in a variety of physical forms, dosages, and price points.

That said, many vitamin C supplements in the market are above the US RDA. It’s important to seek a doctor’s advice if you intend to take high dose vitamin C on a long term basis. To be on the safe side, you may also request for your kidney functions to be monitored.

Always consult your doctor prior to adding any new supplements to your health and wellness regimen.

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