best vitamin c supplement

Vitamin C Supplements: Test & Reviews

Author: Anne Jonson

Diet & Nutrition Expert

Welcome to our big Vitamin C Test . Here we present you all of the vitamin C supplements we have tested.

We want to make the purchase decision easier for you and help you find the best vitamin C preparation for you.

You can also find answers to frequently asked questions in our guide. You will also find some important information on this page that you should pay attention to if you want to buy vitamin C supplements.

Best Vitamin C Supplements

Best liposomal vitamin C

This vitamin C preparation from Sundt Supplements is a liquid, liposomal product. Vitamin C is incorporated into liposomes and has a much higher bioavailability than comparable products.

The active ingredient can be absorbed by your body better, faster and also in larger quantities. In this way, the liposomal vitamin C can give you even more energy and strengthen your immune system.

The drops are gluten and sugar free. You will receive a 250 ml bottle with the purchase, this is enough for about 50 servings. It is also great that genetically modified raw materials were not used in production. In addition, the product does not contain any animal additives.

Best vitamin C from acerola extract

The acerola capsules from Feel Natural contain natural vitamin C. Each capsule contains 660 milligrams of acerola extract.

Since the high dose is available in one capsule, one capsule per day is sufficient. This results in a practical supply for a period of four months.

Feel Natural attaches great importance to quality and product purity. The capsules do not contain any release agents, flavors or preservatives. The product is vegan because the capsule shell is made from vegetable substances.

The capsules are regularly checked for quality and purity. Customers receive a one year satisfaction guarantee.

Best vitamin C tablets

The vitamin C tablets from Nu U Nutrition contain 1,000 milligrams of vitamin C. One tablet per day is sufficient to consume vitamin C in high doses.

This makes the pack size particularly good and provides you with valuable vitamin C for half a year.

Nu U Nutrition produces in Great Britain according to leading European quality standards.

If you are not satisfied with the product, you can make use of the zero-risk guarantee and get the purchase price refunded.

Best vitamin C powder

Vitabay offers vitamin C in natural form as a powder. The powder is made through the fermentation of GMO-free corn & citrus fruits and is therefore completely natural and vegan.

1/2 level teaspoon (approx. 1g) can be stirred into a glass of water once a day. This should be taken with a meal.

Best vitamin C from acerola and rose hip

The capsules contain natural vitamins in the best raw material quality. The recommended daily dose is two capsules, which corresponds to a supply of four months. The capsules should be swallowed whole with plenty of liquid.

It contains only natural vitamin C, obtained from acerola and rose hip. Rice extract was used as a separating agent.

The capsules do not contain any animal ingredients and are therefore suitable for vegans. Production takes place with the highest quality standards.

Vitamin C with the best price-performance ratio

The Vitabay Vitamin C preparation provides 1000mg of vitamin C and 50 mg of citrus bioflavonoids per tablet. It contains 500 vegan tablets that release vitamin C throughout the day.

Both vitamin C and bioflavonoids are components of the antioxidant protection system. Therefore the tablets have a combination function. Vitamin C supports the effect of bioflavonoids and these in turn protect vitamin C from oxidation.

Therefore, vitamin C is particularly stable in connection with bioflavonoids and shows a higher bioavailability and longer retention time in the body.

Questions to Consider Before Buying Vitamin C supplements

Is a vitamin C supplement suitable for me?

Vitamin C is generally suitable for everyone. Here, the question of who it is suitable for depends largely on how much that person gets through their normal diet and how much vitamin C they need.

Athletes have an increased need for vitamin C. This is due to the fact that vitamins are essential for basic metabolic processes and that exercise increases or accelerates them.

In conclusion, an athlete needs more vitamins so that the body can function perfectly and this naturally includes vitamin C.

Vitamin C also has beneficial effects on illness. Studies have shown that increased vitamin C intake during illness and also preventively could shorten the duration of a cold. A sufficient intake of the vitamin is therefore highly recommended, especially in winter.

Of course, nursing mothers also have an increased need, as they also care for the child. Here it is particularly advisable to take a closer look at the supply in order to be optimally supplied.

Furthermore, the vitamin is suitable for all those who have a somewhat one-sided diet. In general, the need for vitamin C in people who do not have an increased daily requirement can be covered by a balanced diet.

What does vitamin C do to the body?

Vitamin C has a variety of roles for the body, the main one being responsible for a well-functioning immune system. It is particularly highly concentrated in the white blood cells, which are known to kill viruses and bacteria.

The vitamin has a very important function in the body as an antioxidant. These cause certain other substances to slow down in the body; essentially that of free radicals. These free radicals cause oxidative stress in the body.

Proteins and other nutrients are damaged. Here the antioxidants, and thus also the vitamin C, help to destroy the free radicals and thus eliminate stress.

In addition, vitamin C is partly responsible for collagen formation. Collagen is a protein that plays an important role in cartilage and bone and prevents joint pain. For this reason, too, athletes benefit from vitamin C.

What are the alternatives to vitamin C?

An alternative to vitamin C supplements is of course a balanced diet that covers the daily requirement. Broccoli, bell peppers or grapefruit also contain enough vitamin C to cover your daily requirement, provided you eat enough of them.
As an alternative to vitamin C supplements, you can of course also opt for a multivitamin supplement, which also covers the need for other vitamins.

In addition to conventional vitamin C, there is also the so-called acerola extract.

This is an extract from the acerola cherry, which is known for its high vitamin C content. However, this alternative does not have a major advantage or disadvantage compared to other natural vitamin C.

In the following we have put together a table that shows you how you can meet your vitamin C requirements and how much of the respective product you need to take in.

We want to give you an insight into the situation, so that you can best decide for yourself which product makes sense for you.

Product Vitamin C Content
Brussels sprouts
Vitamin C supplement
Multivitamin supplement

What types of vitamin C supplements are there and which one is right for you?

If you want to get yourself a vitamin C supplement, there are essentially three different types that you can choose between:

  • Capsules
  • Powder
  • Effervescent tablets

You may also have heard the term vitamin C serum before. We have deliberately not included this type of product in the decision section, as it is intended for the skin and not to meet your general vitamin C requirements.

Since vitamin C is involved in the formation of collagen, which in turn is an essential part of the skin, the vitamin makes for better skin. However, those who cover their vitamin C requirements do not need a serum for the skin.

The other three types do not differ significantly from one another. Personal preference is more important when making a decision. Nevertheless, we would like to make your decision easier for you through the following section.

Vitamin C capsules: Advantages & Disadvantages

The general public probably already knows what capsules are. Here the vitamin is filled as a powder in a small, soluble shell that dissolves in the stomach.

The shell or capsule is conventionally made from beef gelatin. However, many providers also use vegan capsules. However, the effect does not change as a result, rather it is more a matter of personal preference.

The capsule is dissolved in the stomach, which takes 3 – 5 minutes, and then the contained vitamin C takes effect

Vitamin C powder: Advantages & Disadvantages

Vitamin C powder is usually supplied in a bag and, depending on the company, there is also a plastic spoon of a certain size in it for dosing.

The powder is dissolved in water and can be drunk. Most of these powders are tasteless and should also be readily water-soluble in a reasonable product.

Vitamin C effervescent tablets: Advantages & Disadvantages

The effervescent tablets are very similar to the powder. They are usually offered in an elongated, round box of around 20 pieces.

When dissolved in water and drunk, they develop their effect in the body. Different tastes ensure a change in everyday life.

Purchase criteria: Use these factors to compare vitamin C supplements

In the following we would like to show you which factors you can use to compare and evaluate vitamin C preparations. This will make it easier for you to decide whether a certain vitamin C supplement is right for you or not.

In summary, these are:

  • Origin
  • Vitamin C content
  • Quality
  • Additives


The source of your vitamin C provides information about its quality. A distinction is made between natural vitamin C and vitamin C that is produced in the laboratory under the synonym ascorbic acid.

Natural vitamin C

Natural is any vitamin C that is obtained naturally, i.e. from plants. Most natural vitamin C preparations are made by extracting the vitamin from plants that have a particularly high vitamin C content.

The advantage of this procedure is the high bioavailability. This describes the proportion of a nutrient that can be used by the body. According to this, natural vitamin C can be used very well.

Artificial vitamin C (ascorbic acid)

There are other ways to produce vitamin C in the laboratory. Ascorbic acid is mostly made from genetically modified maize.

The disadvantage? It is not a full-fledged vitamin C, but only part of the many components of the vitamin, which means that its bioavailability is significantly lower.


Ascorbic acid is therefore no substitute for a full vitamin C preparation, even if the lower price can be tempting.

That’s why you should pay close attention to the origin of the substance when buying a vitamin C preparation.

Vitamin C content

There are also advantages in looking at the actual vitamin C content of your product. Therefore, always look at the nutritional table before blindly trusting the manufacturer.

As you have already seen above, the daily requirement is very individual, which means that a high dose is actually a lot for one person, but the other just covers half of his needs.

So it’s best to choose a product with the right proportion for you according to your personal needs.

It is also interesting to know that some manufacturers advertise that they contain 660 mg of acerola extract. A product with 660mg of vitamin C is actually in high doses and well suited for competitive athletes, but acerola extract only has a vitamin C content of around 17%.

So always look at the real vitamin C content of your product.


You are probably familiar with various quality seals, such as the organic seal, from the supermarket. Vitamin C preparations are also judged on the basis of such seals. Impurities or similar can be excluded by such quality characteristics.

It also makes sense to look at the country of manufacture. If there is a trustworthy seal of quality, the country of manufacture is rather secondary, otherwise this can also provide information about the quality of the product.


Another aspect that you should keep in mind when deciding on your vitamin C product is that it does not contain any additives.

Additives are substances that are added to the product, for example to make it last longer, or to change the color or consistency. Since they are usually added chemically, it is better to avoid them.

Facts about Vitamin C

What are the benefits of vitamin C for athletes?

Vitamin C can be beneficial for athletes in particular.

Since the vitamin maintains the immune system, the likelihood of getting sick is lower. This is an advantage for everyone, but especially for athletes, as they regress in sport by pausing training due to illness.

In addition, regeneration is also improved. As already mentioned, the vitamin ensures a reduction in oxidative stress. This in turn interferes with the athlete’s recovery, which can at least easily be prevented by vitamin C.

The advantages in terms of reducing stress are also brought to the point in this video. That’s why you are very welcome to take a look at it on occasion.

What is the daily requirement of vitamin C?

Everyone should consume vitamin C every day, but not everyone needs the same amount. How much is enough for whom?

The requirement of a normal person is 95-110mg.

In general, one can assume that this is a rather cautious and low stated measured value.

Depending on the sporting activity, etc., the need increases and it is therefore always advisable to consume a little more than the amount specified by the DgE. A good guideline value should be around 150mg.

Due to the increased oxidative stress, athletes have an enormously higher determined daily requirement. This is estimated at 300 – 500mg.

How do I recognize a vitamin C deficiency?

Those who do not cover their daily requirement of course do not directly suffer from a vitamin C deficiency. A serious deficiency only develops after a long time with significantly too little of the vitamin. According to this, hardly anyone today suffers from a vitamin C deficiency.

Rather, a slight undersupply expresses itself through the increased susceptibility to diseases.

This is due to the connection with the functions of the immune system.

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