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 175 Reviews
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Kate Y.
United States United States
  • Skin Type Combination
  • Age Range 31- 40

I'm surprised I didn't see more reviews about the smell before purchasing. This product feels nice on the skin but leaves a very industrial, metallic after-smell. It was keeping me up at night after my evening routine. (No returns at Stratia, so hope this helps the next shopper!)

Karen C.
United States United States
  • Skin Type Combination
  • Age Range 31- 40
Too bad it didn’t work out

Had high hopes for this product, however, it didn’t work for me. Did not like the feel on my skin feel like something is there clogging my pores even after waiting. They also have a no refund policy unless defective or damage in shipping so regret buying it just like another review mentioned better think through and prepare to lose the money if it doesn’t work.

United States United States
  • Skin Type Combination
  • Age Range 25- 30
Helped with my acne scars

This product has helped me with hyperpigmentation on my face that I have been trying to get rid of for years due to acne scarring. I had to gradually apply it onto my face starting with twice a week and slowly increasing it to once daily during my morning routine. I have start to see improvements in my skin after 3 months with the product, which is amazing. Vitamin C has many benefits if applied to the skin and Stratia has been my go-to.

United States United States
  • Skin Type NormalDry
  • Age Range 25- 30
Not the vitamin C for me

My skin is pretty resilient when it comes to vitamin C products - I’ve tried numerous and never had an issue with them stinging or irritating my skin until I tried this one. I really wanted to like it, but it just doesn’t work well with my skin I guess and I am not a big fan of these silicone-based formula. Still a good product and value, just didn’t work for me!

Diana M.
United States United States
  • Skin Type Combination
  • Age Range 31- 40
Caused a breakout

Love the texture and feel of this product. Love that it doesn’t have hyaluronic acid (so hard these days!) Unfortunately, my skin developed tiny comedones on the sides of my cheeks after using it. I do have very sensitive combination skin. The search continues..

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