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Vitamin C Serum: When and How to Use It


If you have been hearing about vitamin C serum everywhere and still feel unsure about using it, you are not alone. It is one of the most popular skincare products, but many people use it the wrong way and then think it does not work. Here is a simple guide to get it right.

What does vitamin C do for your skin?

Vitamin C is an antioxidant. This means it helps protect your skin from daily damage caused by sun and pollution. With regular use, it may help your skin look brighter, more even and fresher, and it may help dark spots look lighter. It is not a quick fix. Results usually take a few weeks of steady use.

When should you use it?

The best time is the morning. Vitamin C works well alongside sunscreen to protect your skin during the day, so it fits perfectly before your SPF. If your skin is sensitive, you can also try it at night, but the morning is the easiest habit for most people.

How to use it, step by step

  • Wash your face with a gentle cleanser and pat it dry.
  • Apply 3 to 4 drops of serum on your face and neck.
  • Let it settle for about a minute.
  • Apply your moisturizer.
  • Finish with sunscreen, SPF 30 or higher. Never skip this step.

How to choose a serum

Look at the strength. Beginners can start with a serum around 5 to 10 percent and move up slowly if the skin feels comfortable. Many serums go up to 15 or 20 percent, but a higher number is not always better. Choose a dark bottle with a dropper or pump, because vitamin C breaks down when it meets light and air.

How to avoid irritation

  • Do a patch test first. Apply a small amount behind your ear or on your jaw for two days.
  • Start by using it every second day, then move to daily.
  • Avoid using it on the same day as strong exfoliating acids or retinol while your skin is still getting used to it.
  • A slight tingle is normal. Burning, redness or itching is not, so stop using it if that happens.

How to store it

Keep your serum in a cool, dry place away from sunlight and close the cap tightly. If the colour turns dark orange or brown and the smell changes, the serum has gone off and it is time to replace it.

Who should be careful?

If you have very sensitive skin, a skin condition such as eczema, or you are using prescribed treatments, please speak to a doctor or dermatologist before adding vitamin C to your routine.

Final thoughts

Vitamin C is simple once you know the basics. Use it in the morning, start slowly, store it well and always follow with sunscreen. If you are building your routine from scratch, read our 5 step skincare routine to see where it fits.

This article is for general guidance only and is not medical advice.

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