The Ordinary

Vitamin C is a potent antioxidant and a skincare ingredient that provides multiple benefits và supports skin health. If you’ve been thinking about trying an affordable vitamin C product, then you may want to lớn learn about the different types of vi-ta-min C products from the skincare brand The Ordinary.

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Since The Ordinary offers 8 different vitamin C products, it can get confusing quickly, so this The Ordinary vi-ta-min C guide will break down each formula, its benefits, and who it is best suited for.


Before we get into the guide, here is a quick primer on why you should consider adding a sản phẩm containing vi-ta-min C khổng lồ your skincare routine.

This post on The Ordinary vitamin C guide contains affiliate links, & any purchases made through these links will result in a commission for me at no extra cost to you. Please read my Disclosure for additional information.

The Benefits of vi-ta-min C in Skincare

Vitamin C is also known as L-Ascorbic Acid or Ascorbic Acid. It is a water-soluble compound that is well known for its antioxidant qualities. Vi-ta-min C can neutralize environmental aggressors and free radicals that can damage your skin cells.

Vitamin C also helps lớn minimize the appearance of the signs of aging, including fine lines và wrinkles. It supports collagen and elastin production, which makes skin look firm và youthful.

Vitamin C brightens skin tone và visibly targets the appearance of uneven skin tone & dullness. It also lightens hyperpigmentation & dark spots by inhibiting melanin production.

Vitamin C levels in our outer layers of skin decrease as we age and are also diminished by environmental factors. Luckily, you can apply topical vitamin C lớn your skin in various skincare formulas such as cleansers, serums, lotions, creams, or oils.

Drawbacks of vitamin C

Vitamin C is truly an all-star skincare ingredient, so what’s not to lớn like, right? Well, not so fast. Unfortunately, pure vitamin C is notoriously unstable in skincare products. Heat, air, và light may cause vi-ta-min C lớn degrade, oxidize và become less effective. Oxidized vi-ta-min C will turn brownish in color.

This 2017 article in The Journal of Clinical & Aesthetic Dermatology notes that reducing the pH of vi-ta-min C to lớn under 3.5, which makes it more acidic, will help stabilize it and allow it to absorb better. Unfortunately, this causes it lớn become much more irritating on the skin.

Using a high concentration of vi-ta-min C may also cause irritation depending on your skin type. The Ordinary describes this effect as a tingling but non-irritating sensation.

If your skin cannot tolerate a higher amount of L-Ascorbic Acid, you can try a lower concentration of L-Ascorbic Acid, set an L-Ascorbic Acid sản phẩm with another serum or cream, or start out with a vitamin C derivative.

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Due lớn these drawbacks of pure vitamin C, you’ll see many vi-ta-min C derivatives included in The Ordinary’s vitamin C skincare products. These derivatives are much more stable than vi-ta-min C. Unfortunately, they come with drawbacks of their own.

Vitamin C derivatives are usually less potent since they must be converted to lớn L-Ascorbic Acid in your skin cells after application.

Combining vitamin C with other Skincare Ingredients for Better Performance

The benefits of vi-ta-min C are enhanced when vitamin C is combined with other skincare ingredients. This study published in the Journal of the American Academy of Dermatology shows that when combined with vitamin E, topical vi-ta-min C provides improved photoprotection against UV radiation.

This study published in the Journal of Investigative Dermatology found that ferulic acid can stabilize vitamin C và vitamin Edouble their photoprotective qualities (minimizing sun damage). These benefits are why you often see vi-ta-min C combined with ferulic acid và vitamin E.

The Ordinary vitamin C Conflicts

The Ordinary vi-ta-min C products containing L-Ascorbic Acid, or pure vi-ta-min C, should not be used with other vitamin C products, peptides, direct acids, retinol, niacinamide, và EUK 134 0.1%.

Vitamin C derivatives from The Ordinary should not be used with niacinamide products or other vi-ta-min C products. For complete details on using The Ordinary vitamin C products, please see The Ordinary’s Guide khổng lồ Vitamin C.

Patch Testing

When introducing new products into your skincare routine, due khổng lồ the tendency of vi-ta-min C products lớn irritate the skin, it is good khổng lồ patch chạy thử products before using them for the first time.

Please see The Ordinary’s patch kiểm tra guide on their website, which will instruct you on how to perform patch testing.

When Should You Use The Ordinary vitamin C Products?

You should apply most of The Ordinary vitamin C products after water-based serums except for the following two products:

Because The Ordinary Ascorbyl Glucoside Solution 12% is a water-based vitamin C serum, you should apply it before oils/creams. 100% L-Ascorbic Acid Powder is mixed with other products, so you should use it during the step of your skincare routine that you would use the sản phẩm that you are mixing it with.

If you are wondering whether you should use vitamin C during the day or night, The Ordinary states that 100% L-Ascorbic Acid Powder, vitamin C Suspension 23%+ HA Spheres 2%, và Vitamin C Suspension 30% in Silicone should ideally be used at night. You can use the rest of The Ordinary vi-ta-min C products morning or night.

I lượt thích to use vi-ta-min C products in the morning when my skin will be exposed to UV radiation during the daylight hours. This allows me to không tính phí up my evenings for retinoid use.

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A Guide to lớn The Ordinary vitamin C Products

The table below displays the characteristics of The Ordinary products that are formulated with pure vitamin C (L-Ascorbic acid). You’ll see that these pure vi-ta-min C products are effective and affordable.

Scroll down khổng lồ The Ordinary vitamin C derivates lớn view the characteristics of The Ordinary vi-ta-min C derivative products.