Kate Somerville Mega-C Dual Phase Serum

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What is it: Mega-C Dual-Phase Serum is Kate's revolutionary serum packed with vitamin C and bioactive phyto-omegas 3, 6, 9, and 7. Mega-C is formulated to help improve the appearance of skin firmness, elasticity, texture, and smoothness, as well as increasing luminosity, hydrating, and reducing the appearance of fine lines and wrinkles.

Who is it for: It's ideal for anyone who is looking to help improve skin firmness and luminosity, improve skin elasticity, and reduce the appearance of fine lines.

Why is it different: This dual-phase system keeps the vitamin C matrix and the omega serum in separate chambers until use, helping the vitamin C to remain in a stable form. When combined on the skin, the water-based omega serum prepares the skin to receive the vitamin C matrix.

In clinical studies, after just one use, 100% of women showed a significant improvement in the appearance of skin firmness and elasticity and 100% of women showed a significant improvement in skin moisture or hydration. After four weeks, 88% of women showed significant improvement in skin texture and smoothness, and 81% of women showed significant improvement in the appearance of skin-tone evenness.

How do I use it: Use once a day in the evening. Press both pumps with even pressure to dispense product equally. Apply to clean, dry face and neck. Allow serum to absorb into skin before applying other products.

Mega-C is an innovative formula with micronized 10% vitamin C and L-ascorbic acid, which helps maximize the stability of the vitamin C. The white serum formula does not contain water and therefore acts differently than other formulas. If you experience a problem dispensing, please firmly tap the bottle upside down on a hard surface several times before using. This will help it dispense more easily.

You are now on your way to the appearance of firmer, more radiant skin.

From Kate Somerville.


  • 1-fl oz Mega-C Dual-Phase Serum

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Reviews & Community QA

Kate Somerville Mega-C Dual Phase Serum is rated 2.6 out of 5 by 74.
Rated 3 out of 5 by from Wonderful Product! Pump Sucks! I LOVE THIS PRODUCT, it smells amazing and was gentle on my face. But, soo much of the product was wasted because the pumps stopped working and you couldn’t get to the vit c moisturizers. This has stopped me from purchasing! Why would I keep wasting my money, this sort of stuff turns me off from purchasing certain products. Unfortunately I moved on!
Date published: 2018-04-15
Rated 5 out of 5 by from Does What It Says Had a problem pumping both sides at the same time so just pump one and then the other on top of my hand, mix and apply. Has made my face look more refreshed and glowing. Use both Kate Somerville's Wrinkle Warrior Eye Cream and Wrinkle Warrior 2 in 1 Moisturizer plus serum. Do not need to use any primer since this product can be substituted for that as well. People have definitely noticed the difference and mentioned it. Have told my friends about these products and they are now users also. Have not used the Exfolikate Intensive.
Date published: 2018-03-07
Rated 1 out of 5 by from NIce Idea There are a few women who didn't seem to have a problem with the dual pumps. But more than a few customers have had a problem with the pumps, including me. In quite a bit of time, there appears that no change in the delivery system has been made. The dual pumps seem to cause a lot of frustration, and I don't understand why Somerville doesn't do something to stop this problem.....two bottles? a formula already mixed together which doesn't lose it's efficiency? I don't know. But when this many people have problems with the dispenser, it just LOSES customers by frustrating them! This problem has gone on and on for some time and no fix has yet been offered. It's a shame. So many do not know if the product, itself, would have been good or not! But they'll probably never buy another Somerville product!
Date published: 2016-08-31
Rated 5 out of 5 by from 2+ Yrs and Still Seeing Improvements This product really works well. I've been on auto-delivery since the beginning and I'm still seeing improvements. Tip on the pump issue...take the bottom off and use a pen to push up on the interior tube while holding down the pump. This squeezes any air pockets out of the tube and allows you to get every drop. Problem solved!!! :)
Date published: 2016-05-26
Rated 5 out of 5 by from GREAT PRODUCT This product works. I have been using it for well over a year, and I do notice good results. A couple times when I started a new container, there was a little reluctance for the product to release from the pumps, but after giving it a few shakes and a little thump, it started with no problem again until empty. I LOVE this product and do not want to be without it.
Date published: 2015-09-21
Rated 5 out of 5 by from GREAT PRODUCT ESPECIALLY FOR SENSITIVE SKIN I have very sensitive skin, so I used this just hoping my skin would not rebel. It didn't rebel; it flourished. I put Kate Somerville's RetAsphere with this, and together they were a great duo. Again, no problem with sensitivity. I have eliminated brown spots, great skin tone and great hydrated skin. I don't even need to use a moisturizer. Don't let the pump issues stop you from trying this. Mine worked fine. My search is over. Others have noticed the changes. You can't ask for more than that.
Date published: 2015-02-21
Rated 2 out of 5 by from Disappointed Also I thought long before finally deciding to write this review. I really like the product itself. I also like the concept and container style - easy to pack. I did find it easier to pump each side separately - when it worked. Unfortunately, I have had the same problems as so many others. The delivery system is simply inferior, The "white" side took 3 days of mega-pumping before it started to work. Worked well for 5 weeks, then "white" side stopped pumping again. With opaque container, I cannot see if the product is empty. (It shouldn't be as I had a late start with this side of the container.) Very frustrating, especially factoring in how expensive it is. I was very excited to try my first Kate product and am now leery of others. Should have returned it with the initial problem.
Date published: 2014-09-03
Rated 1 out of 5 by from Dissapointed I orderd this product and after 4 uses the pump on one side won't work and there was not enough serum in the other side. I returned it and Q gave me a new one and the new one had the same problem. This is definitely a manufacture problem. The product itself was marginal , I have used better products in the past. Would not recommend this .
Date published: 2014-08-03
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