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
4.4 Based on 247 Reviews
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United States United States
  • Skin Type Dry
  • Age Range 25- 30


Nowhere in the main description of this product does it say it’s silicone based. So to my shock when I went to apply this “ serum“ it left my skin matte and more dry than before. Very disappointed. 

Carol G.
United States United States
  • Skin Type DryDehydrated
  • Age Range 51 and over

The only Vitamin C Serum I use

I've used this product over and over and have it on auto delivery. It really works. Occasionally I'll look at the sun spots I have on my face and after a few months of using this, they are definitely faded and some of them have disappeared! I didn't give this 5 stars because I have had troubles with a couple of the pumps not working well. I love the completely closed bottle to preserve the efficacy and effectiveness of the product but I'm really not a fan of the pump system for this product.

United States United States
  • Skin Type Oily
  • Age Range 25- 30


At first, I was really scared to use this product on my oily skin because I heard it has a silky texture, and normally silky products just move around on my skin. However, this product sets. I don't know how Stratia formulated this, how it's silky yet great for oily skin, but it's amazing! I definitely saw a difference by two weeks. I look glowing plus my post-acne marks were fading away quicker than usual. It's really good under makeup as well as long as you don't use a silicone-based primer on top, you should be okay. I can't live without this anymore. Also, it's more affordable than most Vit C products out there!

Druella J.
United States United States
  • Skin Type Dry
  • Age Range 51 and over

Love this Product!!

I am over 60 and when I added the Vitamin C to the other Stratia products it made my skin look so healthy and resilient. The Stratia line of products are amazing!!

Samantha N.
United States United States


I was hesitant about the texture of this but I love it. It blurs the uneven redness of my skin. I wait about a minute before applying the next product. It’s cleared up some redness I have and is balancing my skin tone.

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