C+C Serum


An antioxidant powerhouse with 15% vitamin C in a feather-light, water-free formula.

Brighten, smooth, and firm your skin with a daily antioxidant boost. This powerful serum features 10% ascorbic acid (the pure form of vitamin C) plus 5% ascorbyl tetraisopalmitate (an oil-soluble vitamin C derivative). We added some CoQ10 for good measure and put it all in a water-free formula to protect these potent but fragile antioxidants.

1 fl.oz./ 30ml

Brighten up and smooth out with two types of vitamin C.

Rich Vitamin E oil is added to boost the antioxidant impact of this lightweight serum.

Rich Vitamin E oil is added to boost the antioxidant impact of this lightweight serum.

Ascorbic acid

Highly potent antioxidant that helps prevent premature aging by neutralizing free radicals caused by UV damage, pollution, and other sources.

Ascorbyl tetraisopalmitate

Oil-soluble derivative of vitamin C that penetrates skin deeply to fight free radicals, boost collagen production, and brighten skin tone.


Powerful antioxidant that’s found naturally in the skin. CoQ10 levels decrease with age, so skincare featuring this ingredient has anti-aging benefits.

Cyclopentasiloxane, Isododecane, L-Ascorbic Acid, Ascorbyl Tetraisopalmitate, HDI/Trimethylol Hexyllactone Crosspolymer, Polysilicone-11, Dimethicone/Bis-Isobutyl PPG20 Crosspolymer, Ethylhexyl Hydroxystearate, Squalane, Tocopherol, Ubiquinone, Bisabolol, Silica  

How it works

Vitamin C is one of the most powerful skincare ingredients you can get without a prescription. It can:

• Scavenge and neutralize free radicals

•Increase collagen production

• Fade hyperpigmentation

However, the form of vitamin C that’s easiest for your skin to use, L-ascorbic acid, is also extremely unstable, breaking down quickly when exposed to water, heat, or light. That’s why most vitamin C serums turn orange and need to be replaced often.

C+C Serum uses 10% L-ascorbic acid, and to keep it safe, we’ve suspended it in a lightweight silicone formula away from water, heat, and light. That means it’s stable on your shelf for a full year. We also added 5% ascorbyl tetraisopalmitate, an oil-soluble form of vitamin C.

To up the ante, we added another incredibly powerful antioxidant, Coenzyme Q10 (otherwise known as ubiquinone) to make sure no free radical is left un-scavenged. Bisabolol, a key component of German chamomile, helps soothe and calm skin.

Put it all together and you’re left with an incredibly potent yet non-irritating antioxidant serum to help brighten, smooth, and firm your skin.

C+C Serum does not have a pH because it’s an anhydrous (water-free) product.

Is it right for me?

We chose C+C's vitamin C percentages to hit that sweet spot: effective but not irritating. That means it's perfect for even sensitive skin. Since C+C Serum's silicone base evaporates away, it's lightweight, non-greasy, and suitable for all skin types.

Due to the nature of C+C Serum’s silicone base, it’s important to apply the product to clean, dry skin and wait a few minutes before applying your next product. Layering other products without allowing C+C’s base to evaporate can cause pilling or balling of product.

All Stratia products are free of common irritants like fragrance, alcohol, and essential oils.

Customer Reviews
4.3 Based on 212 Reviews
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Kaitlin G.
United States United States
  • Skin Type DrySensitiveBlemish-prone
  • Age Range 25- 30

Good product, difficult packaging

This was my first time using a silicone based Vit-c. My skin was not angry like with other Vitamin Cs and the application is smooth. But the packaging is SO frustrating. It comes in a skinny bottle with a tiny little pump—that never seems to work. I find myself frustrated every time that I have to remove the top and try to bang the dang stuff out to the point that I prefer using my other serums instead.

Dawn S.
United States United States
  • Skin Type Dry
  • Age Range 41- 50

Nice serum, issue with pump

This is a nice, easy to spread serum that has a lotion quality to it. I let it dry for a minute before applying my daytime moisturizer, and as long as I do that, no problems with pilling. It doesn't bother my skin at all, but I don't think I've been using it long enough to claim to see real benefits. Lately I've been having a problem with the pump -- it seems to get stuck, delivering a small amount, and a second pump puts out too much. I can hear the little spring inside getting stuck (it makes a little sound), and I'm hoping it doesn't stop working before I've finished the bottle. That said, I still like this serum, especially since it is in pump form and not a glass bottle with a dropper.

Rashal E.
United States United States
  • Skin Type Normal
  • Age Range 41- 50

Best vitamin C I’ve used!

I love that the serum goes on super light and absorbs quickly. It doesn’t leave a sticky finish and makes it a great addition to my AM skin care routine.

Malena F.
United States United States

Night Shift

Stratia’s Vitamin C is gentle and effective. Because of its formulation, I am happy that it doesn’t oxides as quickly as those formulated with water.

Erika M.
United States United States
  • Skin Type DrySensitiveBlemish-prone
  • Age Range 41- 50

Smooth and gentle Vitamin C

I love the velvety feel when applying. The packaging also makes the experience pleasant. It would be helpful to know how much I should be using. Maybe that could be added to the directions because how much is a “thin layer”? I want to put on enough to see the effects—I have only been using it for a few weeks. I haven’t had any stinging or experienced any adverse effects.

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