How to Use Vitamin C in Your Skincare Routine

by Beth Wischnia April 12, 2021

No matter what skin type you may have, Vitamin C is one of the most impactful ingredients you can incorporate into your daily skincare routine. Whether you’re looking for an all-over boost of radiance, a strong defense against sun damage, or a powerful brightener for dark spots, vitamin C can help you effectively achieve all these skin goals, and more.

The wide-ranging benefits are a major reason why this ingredient is so beloved throughout the skincare community. However, it’s multitasking abilities can make vitamin C a bit confusing to understand: What’s the best way to start using it in your skincare routine? Which form of vitamin C is best for the specific skin concern you want to target? Do vitamin C serums and vitamin C face oils do the same thing?

In this guide, we share everything you need to know to become an expert in this superstar ingredient. We’ve even included a breakdown of our two vitamin C-centered formulas, explaining how they differ and how you can incorporate both into your daily routine.

What does vitamin C do for your skin?
Vitamin C is a powerful antioxidant that can fight free radicals, visibly brighten, reduce the appearance of hyperpigmentation, and boost the skin’s firmness by jumpstarting collagen production.

You can spot vitamin C on an ingredient label in a few different forms. It may be listed as any of these: magnesium ascorbyl phosphate, L-ascorbic acid, tetrahexyldecyl ascorbate, ascorbyl palmitate, ascorbyl glucosamine, and ascorbyl tetraisopalmitate. (More on the forms we use in our formulas below.)

How Biossance’s Vitamin C Skincare Products Differ?
Two of our top-performing formulas–the Squalane + Vitamin C Dark Spot Serum and Squalane + Vitamin C Rose Oil–feature this prized antioxidant as a hero ingredient. However, the two work in dramatically different ways to achieve dramatically different results for your skin. Are they interchangeable? Definitely not. Can you use both in your routine? Absolutely. Here are a few key ways these two formulas differ–and one important thing they have in common.

  1. Treatment vs. Moisturizer
The primary way these two formulas differ is that they’re each designed to be used during different steps of your skincare routine. Our Squalane + Vitamin C Dark Spot Serum is a treatment. With a powerful dose of actives and a touch of squalane for balance, this product is hyper-focused on targeting one main skin concern: dark spots and hyperpigmentation.
On the other hand, our best-selling Squalane + Vitamin C Rose Oil is formulated to deliver glowing hydration to the skin. Think of this product as a moisturizer that also comes with additional benefits.
Vitamin C Dark Spot Serum versus Vitamin C Rose Oil
  1. The complementary ingredients create different results
Vitamin C’s benefits can be amplified and diversified depending on how concentrated it is and what other ingredients it’s paired with. For example, our dark spot serum blends a powerful dose of 10% vitamin C with white shiitake mushroom extract. When the high concentration of vitamin C is paired with this discoloration-correcting plant extract, it boosts vitamin C’s ability to powerfully and visibly reduce the appearance of established dark spots while also preventing new ones from forming.
In this delicately balanced treatment, we use L-ascorbic acid, a unique shelf-stable form of vitamin C that’s known to be less irritating than other forms on the skin while still being highly effective. Our scientists found that a 10% dose of L-ascorbic acid is the ideal amount needed to deliver fast, powerful, long-lasting results.
In our best-selling face oil, vitamin C teams up with an exclusive blend of sugarcane-derived squalane, Chios crystal oil, and Damascus rose extract to deliver a broad range of balanced benefits–namely hydration, increased radiance, and a boost of firmness. Because this oil is a hydrator, it features a mild dose of tetrahexyldecyl ascorbate (THD), another trusted form of vitamin C known for its outstanding ability to penetrate the skin and absorb quickly. 
    1. Squalane plays a different role in each formula
    Our sugarcane-derived squalane also plays quite a different role in these two top-performing vitamin C formulas. In our Squalane + Vitamin C Rose Oil, squalane takes center stage, delivering a fresh dose of fast-absorbing, weightless hydration.
    In our Squalane + Vitamin C Dark Spot Serum, the weightless oil plays more of a supporting role, allowing the 10% dose of L-ascorbic acid to take the lead while it works in the background to keep skin happy, healthy, and hydrated.
      1. They’re both formulated to last
      One key commonality between these two formulas is that they both feature shelf-stable forms of vitamin C. As popular as this ingredient is, it also has a tendency to break down quickly through a process know as oxidation. When vitamin C oxidizes it loses its effectiveness and can also cause irritating side effects. Our scientists have specially formulated both of our vitamin C products to be extremely stable so that they can continue to provide clean, healthy, skin-loving no matter how fast or slow you may use them.   
      Squalane + Vitamin C Dark Spot Serum

        How to Use Vitamin C Serums and Oils?
        Here’s some good news: Because our two vitamin C products work so differently, you don’t have to choose between one or the other. In fact, we actually recommend using them together during your AM and PM skincare routine.

        Our Squalane + Vitamin C Dark Spot Serum can be applied in the morning and/or evening to freshly cleansed skin. If you’re using our new Squalane + BHA Pore Minimizing Toner, apply this serum after the toner has absorbed and before using any other serums. Next, layer on your favorite moisturizer. Then, lock in all those benefits and give skin a final hydration and glow boost with our Squalane + Vitamin C Rose Oil.

        In the AM, remember to always top off your skincare routine with a mineral sunscreen. Vitamin C is excellent at protecting the skin from environmental stressors, but the best defense will always be a daily dose of SPF.

        Beth Wischnia


        Beth Wischnia
        Beth Wischnia

        Author

        My industry experience includes years as a beauty editor and leading content for a wide range of skincare and makeup brands. Those experiences led me to Biossance—I was introduced to the brand on an editor press trip in 2017 and instantly fell in love. I toured the labs, created my own 100% Squalane with essential oils, and noticed a dramatic difference in my skin by introducing clean products (especially the Vitamin C Rose Oil) to my regimen. I’m excited to be on this journey with Biossance and be at the forefront of clean beauty innovation.



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