What to look out for in a Vitamin C Serum

What to look out for in a Vitamin C Serum

Over the years, Vitamin C has been dubbed a “holy grail” in the skincare industry. This is because of its seemingly endless benefits: brightening, collagen boosting, antioxidation, anti-aging, fading of melasma and acne scars, you name it. Vitamin C is also more commonly recommended by dermatologists and skincare experts compared to other ingredients like retinol because it’s much safer to use and less likely to cause irritation. However, the many positive effects of this wonder ingredient also come with a price— it’s one of the hardest ingredients to put in a bottle.

Vitamin C is Sensitive

Vitamin C is extremely sensitive to light, heat, and air. The slightest exposure can cause it to oxidize, change color, and slowly lose its potency. L-ascorbic Acid, in particular, is the most common form of Vitamin C used in many skincare products, but it is also the hardest to stabilize and preserve. Additionally, the average shelf life of Vitamin C can be stretched up to 3-6 months only, making hoarding a big NO-NO.

Serum is the Way to Go

Although Vitamin C can be found in creams, cleansers, gels, and almost all other forms of skincare, experts agree that serums are still the best form when it comes to Vitamin C. Serums allow for easier application and provides faster absorption into your skin, making it less likely to undergo oxidation. It is also suggested that you pair your Vitamin C serum with Vitamin E since the latter helps keep the former balanced and preserves its efficacy.

Moreover, serums in general are a necessity for a holistic skincare routine. Its unique texture and composition make it superior to creams, gels, and other forms of skincare products because it provides multiple benefits including anti-aging, anti-acne, and many more skincare issues, in comparison to moisturizers, for example, that only deliver hydration.

How to Keep Vitamin C Fresh

Unfortunately, there is still no known solution to help stop Vitamin C from breaking down, however, there are ways to slow down the oxidation process. Here are some helpful tips on how to preserve Vitamin C and get your money’s worth in every bottle:

  1. Darker is Better
    They say don’t judge a book by its cover, but you should definitely judge a Vitamin C product by its packaging. When shopping for a Vitamin C serum, make sure that you choose those with darker or even opaque containers to keep the light out.

  2. No Air, No Problem
    Vitamin C is known to neutralize free radicals, sadly, it does its job so well that it targets even free radicals from the air. Opt for bottles that are airtight and always seal opened bottles properly to ensure that the potency of Vitamin C is preserved.

  3. Go for Glass
    Chemical substances from plastic containers can easily be broken down when mixed with liquid ingredients, contaminating the formulation. This is why most serums, especially with hypersensitive products like Vitamin C, are placed in glass bottles.

  4. Keep It Cool
    As mentioned earlier, light and heat can cause Vitamin C to oxidize and lose its efficacy. So, store your Vitamin C serum and all other products containing Vitamin C in cool and dry places. Some would even suggest placing them inside your fridge for good measure.

Radian-C Spot Serum: LANEIGE’s ALL NEW Vitamin C Powerhouse
Freshly released earlier this year, LANEIGE’s Radian-C Spot Serum is one of the four new products under the Radian-C Range, with Vitamin C as the main key ingredient. The spot serum promises to bring triple speed blemish control with powerful anti-oxidation.

What Makes it Different:

  1. Radian-C 3x Blend
    While some products use L-ascorbic Acid, known as the most potent form of Vitamin C, Radian-C's star formula, the Radian-C 3x Blend, includes 15.2% pure Vitamin C + Vitamin C derivatives (EAE) and Niacinamide (vitamin B3) that addresses 9 skin concerns in one bottle.


  2. Advanced Anti-Oxidation System
    The Radian-C 3x Blend doesn’t just address the top 9 common skin concerns, it also has an advanced anti-oxidation system. In fact, studies show that it has the highest anti-oxidation effect compared to the single ingredients of pure Vitamin C and Niacinamide. This results in slower oxidation of Vitamin C, making it more potent for longer.


  3. State-of-the-Art Packaging
    Specially designed to prevent oxidation and stop precipitation of high-content Vitamin C, the Radian-C Spot Serum has an airtight and opaque container and comes with a secure dropper for trouble-free application.

Get to know more about the signature Vitamin C formula of LANEIGE’s Radian-C Range here.

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