How to Use Vitamin C Serum for Glowing Skin

Learn how to use vitamin C serum for glowing skin with our expert tips and tricks. Discover the benefits, types, application techniques, and more.

Disclosure: Some of the links in this article may be affiliate links, which can provide compensation to me at no cost to you if you decide to purchase. These are products I’ve personally used, as well as are recommended by other skincare experts.

If you’re anything like me, you’ve probably tried a dozen different skincare products, always on the hunt for that elusive “glow.”

But let me cut to the chase: one of my all-time favorite skincare actives is Vitamin C. No kidding, I’m obsessed.I’ve been using it for years, and it’s done wonders for my skin—brighter complexion, reduced pigmentation, the works.

But I’ll be honest: it wasn’t smooth sailing from the get-go. Vitamin C serum can be tricky.

For starters, not all serums are the same. Some were too strong for my skin, leading to irritation. Others oxidized quickly, which is basically a waste of time and money.

And figuring out how to incorporate it into my existing skincare routine? That was a whole other challenge.

I’m sharing this because I’ve been down the road of trial and error, and I’ve learned a lot along the way. My aim is to help you navigate the complexities of using Vitamin C serum, so you can get the benefits without the hassle.

Ready to get into the details?

Vitamin C Serum Benefits

Vitamin C, or L-ascorbic acid, is more than just a vitamin found in food and supplements. It’s a key player in skincare, backed by extensive research.

What Vitamin C Offers:

Brightening: Vitamin C evens out skin tone and reduces dark spots. The result? A brighter, more radiant complexion.

Anti-Aging: As we age, our skin loses collagen, leading to wrinkles and fine lines. Vitamin C boosts collagen production, smoothing out these lines and making your skin look firmer.

Protection: Vitamin C is a strong antioxidant that shields your skin from environmental factors like pollution and UV rays. It neutralizes free radicals, which can damage skin cells and speed up aging.

Hydration: Struggling with dry or combination skin? Vitamin C improves hydration, preventing dry areas and keeping your skin soft all day.

Acne-Fighting: Some Vitamin C derivatives, like sodium ascorbyl phosphate, have antimicrobial properties that combat acne-causing bacteria. Plus, its brightening effects help fade post-acne marks.

What Is the Best Form of Vitamin C in Skin Care?

What Is the Best Form of Vitamin C in Skin Care?

When it comes to topical Vitamin C, there are two main categories: active and inactive. L-ascorbic acid is the only “active” form that our skin can directly absorb. All other forms need to convert to L-ascorbic acid in the skin before they become effective, making them “inactive.”

Why L-Ascorbic Acid Is The Gold Standard

L-ascorbic acid is highly effective in boosting collagen and reducing discoloration. But it has its downsides—it’s unstable and can oxidize quickly, losing its effectiveness. Plus, it requires a low pH level for skin absorption, which can irritate some skin types.

The Rise of Vitamin C Derivatives:

These were developed to address the limitations of L-ascorbic acid. They’re more stable but lack the same level of scientific backing.

Common Vitamin C Derivatives:

• Sodium Ascorbyl Phosphate (SAP): A reliable derivative that can even out skin tone and boost collagen. It also has antimicrobial properties, making it good for acne treatment.

• Magnesium Ascorbyl Phosphate (MAP): Gentler on the skin but less potent. It’s often combined with other ingredients to enhance its effects. A concentration of at least 10% is needed for brightening.

• Tetrahexyldecyl Ascorbate (TA): Known for deeper skin penetration, it offers antioxidant protection and boosts collagen. Limited studies suggest it may be more effective than L-ascorbic acid in some aspects.

• Ascorbyl Glucoside (AG): A stable, water-soluble form that converts into L-ascorbic acid in the skin. It’s non-irritating and offers similar benefits, like collagen production and treating hyperpigmentation.

How To Choose The Right Vitamin C Serum

Vitamin C Concentration

Research shows that L-ascorbic acid is effective in concentrations ranging from 3-25%. But more isn’t always better—higher concentrations can irritate your skin. Your skin absorbs only what it needs, so exceeding 20% doesn’t offer extra benefits and may cause irritation.

What to Look For:

• Concentration: Aim for a serum with 10-20% L-Ascorbic Acid.

• pH Level: A pH under 3.5 is good, but 2-3 is even better for skin absorption.

• Ingredients: Check labels for irritants like alcohol or fragrances, which can dry out or sensitize your skin. Look for serums that also contain vitamin E, tocopherol, and ferulic acid. These enhance the serum’s stability.

• Skin Type: Choose a serum tailored to your specific skin concerns.

A Quick Note on Fruit Extracts:

You might find ascorbic acid in fruit extracts like Kakadu plum, which can contain up to 12% ascorbic acid in its dried weight. But be cautious—these extracts come in varying concentrations, making it hard to gauge their effectiveness in the final product.

How to Use Vitamin C Serum

When it comes to skincare products, apply them from lightest to heaviest for maximum absorption and effectiveness. In the morning, use your vitamin C serum first before applying moisturizer and sunscreen – this will give you an extra boost of nourishment and protection (e.g. neutralize free radicals) throughout the day!

Step 1: Prep your skin

Use an oil cleanser to get rid of any dirt, oil, or makeup. Then, double cleanse with a water based cleanser. You want a clean surface for maximum absorption of your skincare products.

Step 2: Apply toner

If you’re a toner person, apply it right after cleansing. It opens up your pores, prepping your skin for the goodness of Vitamin C. Just be cautious with the ingredients—avoid toners with benzyl peroxide or copper ions, as they can irritate the skin when used with Vitamin C.

Step 2: Apply Vitamin C Serum & Gently Pat Into the Skin

Apply a few drops of your Vitamin C serum to your face, neck, and chest. Gently pat it in until it’s fully absorbed. If you’re new to Vitamin C or have sensitive skin, start with once-a-day application to let your skin adjust.

Step 3: Apply other serums and moisturizer

After your Vitamin C serum is absorbed, go ahead and apply any other serums and your moisturizer. This helps to lock in the Vitamin C and adds extra hydration.

Step 4: Apply Sunscreen (morning routine)

Vitamin C can make your skin more sun-sensitive, so always finish with sunscreen in the morning. Even better, find a sunscreen that also contains antioxidants like Vitamin C for double the protection. Use a sunscreen stick throughout the day for easy re-application.

FAQ

How Should I Store My Vitamin C Products?

Keep them in a cool, dry place and away from direct sunlight to maintain their effectiveness. Extreme temperatures are a no-go.

How Can I Tell If My Vitamin C Serum Is No Longer Good?

If the color changes to orange or brown, or the texture feels off, it’s time to replace it.

Can I Use Retinol and Vitamin C Together?

Yes, but not at the same time. Vitamin C for the morning, retinol for the night to avoid irritation. Both can help brighten and smooth your skin.

What About Niacinamide and Vitamin C?

You can use both together. Forget the outdated research; modern formulations are safe to use simultaneously. Just layer them based on their consistency (e.g. thinest to heaviest).

Can Vitamin C and Hyaluronic Acid Be Used Together?

Absolutely. Hyaluronic acid helps lock in the benefits of Vitamin C. Apply Vitamin C first as it’s usually lighter.

How Often Can I Use Vitamin C Serum?

It depends on your skin type and the serum’s concentration. For normal to oily skin, 10-20% Vitamin C can be used daily. If you have sensitive or dry skin, opt for a lower concentration and use it less frequently.

Start slow and gradually work your way up to daily use, especially if you’re new to Vitamin C serums. Always do a patch test first and consult a dermatologist if you’re unsure.