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What Does Vitamin C Serum Do?

What Does Vitamin C Serum Do?
Writer and expert2 years ago
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As children, we were told that vitamin C is important and handed an orange. Thanks to a child's sweet tooth and the natural sugars, further explanation was rarely needed.

From its humble beginnings as a five-a-day incentive, vitamin C has come a long way. It has been taken from the fruit bowl and thrown into the middle of the skincare world, where it now stands as a bathroom shelf must-have. It can be seen as a key ingredient of many products, especially serums. Vitamin C serums are repeatedly mentioned by top skincare gurus. However, a frequently asked question still arises, what does vitamin C serum do?

You may be familiar with their link to brighter skin, but in fact, vitamin C serums do much more than that. Vitamin C has many features that contribute to enviable skin, so when added to a serum and combined with other skin-enhancing ingredients, the result is an essential component of a glowing skincare regime.

Perricone vitamin C r=products with oranges

As part of skincare...

  • It impedes melanin production, so can even out skin tone and get rid of dark patches.
  • Its antioxidant properties can reduce redness and protect against the sun and free radicals.
  • It promotes collagen to give the skin that plump, tight feel.
  • According to a 2013 reviewTrusted Source, it replaces damaged skin cells with healthy new ones.

As part of the diet according to Myvitamins...

  • It protect our cells against oxidative stress.
  • It maintains a healthy immune system.
  • Lastly, it helps to support natural levels of energy throughout the day.

In conclusion, vitamin C, both in a serum and in the diet, does a lot.

How to apply vitamin C serum

Vitamin C serums do their work particularly well when applied at the start of the day as they act as a shield against environmental factors like pollution in the air. Pair it with an SPF, or even better, a vitamin C SPF. This is the ultimate protection duo for your precious skin.

To apply a vitamin C serum, simply massage it onto the face and neck after cleansing as the second step in your routine. Use a gentle upward motion with your hands and wait until it is fully absorbed before moving on to any other steps.

How often to use vitamin C serum

A vitamin C serum can be used on the face every day, morning and evening. It can be applied alongside most products but if using exfoliating acids, niacinamide, or retinol, make a note to keep them to the evening regimen and the serum to the morning.

You may be wondering how often to use a vitamin C serum since they're known to degrade quickly. In fact, the average shelf life of a standard vitamin C serum is less than six months, a potential drawback for many looking to expand their skincare regime. This is because the standard form of vitamin C can easily become unstable when exposed to heat, light and air, losing its antioxidants. If the serum's liquid turns orange or brownish, it's time to throw it away. However, what we're discussing here is a standard vitamin C serum.

How long your serum will last depends on its stability. That's why instead of a standard form, it's best to opt for a stable vitamin C serum, such as the Vitamin C Ester CCC+ Ferulic Brightening Complex 20%. The more stable, the more effective and longer the shelf life, so you can use your vitamin C serum as often as you like without the worry of it oxidizing.

How long does vitamin C serum take to work?

Once you add vitamin C to your skincare regimen, it will start getting to work straight away. The antioxidants will immediately form a barrier of protection around the face. What's more, the added ingredient 'squalane 'in our Vitamin C Ester Brightening Serum will instantly hydrate the skin.

Visible results can include radiant skin, an even skin-tone, and a tightened, smoother base from collagen stimulation. As is usually the case with skincare products, the rule of thumb is to stick to your new skincare regime for at least a month before expecting noticeable differences.

How long vitamin C serums take to work also depends on the concentration and potency of the formula. Out of 103 people who used the Vitamin C Ester CCC+ Ferulic Brightening Complex , 91% saw healthier-looking skin over 28 days. Our clinical research conducted on 42 women over 8 weeks showed that 92% of women saw an improvement in the appearance of skin texture. In this brightening complex, vitamin C Ester is combined with two other highly stable forms of vitamin C, resulting in an incredibly supercharged and concentrated brightening and smoothing formula.

woman with glowing skin

What is vitamin C ester?

We spoke about the stability of vitamin C, and this stability all depends on the form of vitamin C. The reason why Perricone's vitamin C range is so highly stable is because of the form of vitamin C used, called vitamin C ester. What is vitamin C ester? It is a more potent and less abrasive form of vitamin C.

Still containing all of the antioxidants present in the original form, what vitamin C ester continues to do is give the appearance of collagen-rich skin by smoothing, brightening and minimizing the look of discoloration over time. However, unlike traditional vitamin C, vitamin C ester is fat-soluble rather than water soluble. The skin repels water-soluble substances, so vitamin C ester can penetrate the skin much deeper for it to absorb maximum antioxidant benefits.

What are the inside-out benefits of vitamin C?

Lastly, once you have your skincare in place, there's one more step to take in order to guarantee that glow: nutrition. Vitamin C ester paired with the right nutrition is a recipe for radiance. We're not advising tangerines for breakfast lunch and dinner. However, making an effort to add citrus fruits and tomatoes into the diet will certainly be beneficial. The inside-out health benefits that vitamin C contributes to are plentiful and proven, from collagen production to reducing fatigue.

It can also be difficult to squeeze in the foods for all of the nutritional requirements we need. If you think you're lacking in the vitamin C department, nutritional supplements can ensure that you have a steady intake of the antioxidants and nutrients that you may be missing out on.


We've established that vitamin C certainly deserves the credit it has been given, both in the worlds of nutrition and skincare. Working from the inside-out, vitamin C in the diet contributes to that healthy glow by protecting our cells and maintaining a strong immune system, while the right vitamin C serum can seal that enviable radiance into place. Discover Perricone's vitamin C collection.

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