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Dual Radiance Serum


Dual Radiance Serum

A dual-chambered Vitamin-C serum packed with youth-enhancing skin-renewing Omegas to boost radiance for an all-over glowing, healthy-looking complexion.
1 Fl. Oz.

Availability: In stock

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  • Dramatically improves the appearance of fine lines and wrinkles.
  • Helps improve skin firmness and elasticity.
  • Diminishes the appearance of dark spots and discoloration, evens skin tone and brightens the complexion.
  • Replenishes skin’s natural lipids and restores skin’s natural barrier function to soften skin texture and improve moisture retention.
  • Helps neutralize free radicals to slow down the visible signs of aging.


Clinically Proven Results*


After just 1 use:

  • 100% of women showed highly significant improvement in the appearance of skin firmness and elasticity.
  • 100% of women showed highly significant improvement in skin moisture/ hydration.


After only 4 weeks:

  • Instrumentally proven to show statistically significant improvement in skin luminosity in the majority of women.
  • 88% of women showed significant improvement in the appearance of skin texture and smoothness.
  • 81% of women showed significant improvement in the appearance of skin tone evenness.

 *Results based on independent Clinical Study

Key Ingredients

This two-phase system is divided in the dual-chamber to preserve purity and potency of ingredients until released. High-potency Vitamin C visibly brightens skin and helps reduce the appearance of aging. Skin-renewing Omegas 3, 6, 9 + 7 and skin-softening Vitamin E help replenish essential lipids and lock in moisture upon application.


  • Micronized 10% Vitamin C, L-Ascorbic Acid, maintains potency and stability until activated. This powerful Antioxidant improves skin firmness, brightens and evens skin tone.
  • Encapsulated Sea Buckthorn Pulp Oil, a “superfruit” loaded with Omegas 3,6,9+7, replenishes essential lipids, helps reinforce the skin’s natural barrier and locks in moisture.
  • Natural Vitamin E, works synergistically with Vitamin C to achieve optimum antioxidant efficacy, and provides moisturizing benefits.
  •  Nourishing Vitamin B-Complex, B3, B5 & B6, defends skin against environmental aggressors that can cause the visible signs of aging.
Kate's Tips
PM. Use once a day. 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.
Kate Somerville
Mega-C® Dual Radiance Serum
Dual Radiance Serum
#KateSomerville Skin
87 Reviews
100 % of 87 Recommend This Product
from Uk
45 - 54
Anti-Aging & Acne
Vitamin C serum
Excellent vitamin C serum, not too oily and I use this every other day alternating with Resor8. I have had no problems with the dual dispensers and they finish at almost the exact same time. The only downside is there is no indicator showing when you are getting close to running out so you always have to have one as backup!
from Minneapolis, MN
35 - 44
Anti-Aging & Acne
Mega C=Mega Difference
I have been using Mega C for about a year now, and I will not stop using it! I was told by my esthetician to use vitamin C on my face daily, and since I was already using Kate Somerville, I looked for vitamin C. Of course it seemed spendy at first, but now I understand why...it is worth it! I started out using this 1x a day, and now I use it 2x a day, morning and night. It gives you that radiant glow, and smooth looking skin.
from Jackson, Wisconsin
25 - 34
Super soft and moisturizing
I decided to try this a couple months ago and glad I did! It is really soft and moisturizing on the skin! I have dry skin and have been impressed so far and like that my skin seems to be brighter in the morning after use. As for it becoming a staple I will see how it does over the winter to see if I will keep this serum or try another Kate serum. Love her products!
from Orange, CA
35 - 44
Best Vitamin C Serum!
I love this vitamin C serum! It really brightens the skin and does not burn like other Vitamin C Serums. try it, you will not be disappointed.
from Bismarck, ND
45 - 54
It's Amazing!
I had a couple of samples of Mega-C and finally tried them. This stuff is amazing. You could notice the difference in your skin after one night. I promptly went online and purchased my first bottle. For those of us looking to slow the aging process this is a great product.

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