SEN Radiance Dual System - 2 Day Night Serum 30 ML
The Radiance Oil Serum
SEN is the oil-based serum in the KOSEN Dual System, designed to nourish the skin, support its protective barrier and improve the appearance of radiance and smoothness.
SEN combines skin-conditioning lipids with advanced oil-soluble actives to help skin look smoother, brighter and more resilient.
Why use it with KO?
SEN delivers nourishing oils and oil-soluble actives, while KO provides hydration and peptide technology. Together, they offer complementary benefits that neither formula provides alone.
And in an independent 8-week trial, 43 women tested our KOSEN dual system serum daily and the results were hard to ignore.
98% reported a noticeable improvement in glow and radiance.
91% experienced a visible increase in hydration, leaving skin looking plumper and more nourished.
86% saw visibly smoother skin.
How to use: Apply SEN after KO, morning and evening, as part of your complete KOSEN Dual System ritual.
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Refunds & Exchanges
Refunds & Exchanges
How to Apply
How to Apply
Full list of Ingredients
Full list of Ingredients
Frequently asked Questions
Frequently asked Questions
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Let customers speak for us
I cannot recommend Emiko Skincare highly enough!
For most of my life, I was blessed with good, blemish-free skin. However, hitting 40 brought a sudden, challenging shift: my skin became red, angry, and painful, which really hit my confidence hard. My usual products completely ceased to work, and trying harsher alternatives only made things worse.Out of pure desperation, I ended up using absolutely nothing on my face for months. While stripping it back to basics did manage to calm the inflammation down, it left my skin looking incredibly tired, flat, and dull.
Luckily, a friend who is a skin aesthetician recommended Emiko. I trialed the products during a facial, and wow—I was hooked.
I have since purchased the core ritual products, and my skin has never been happier.Before Emiko, I was terrified of cleansers. Almost every product I tried left my skin stripped and dry, triggering awful breakouts that took weeks to heal. The Deep Clean Gel to Milk Cleanser has completely healed that rift; it cleanses beautifully without leaving me dry, and I am officially hooked.
The entire core ritual works together so beautifully to make my skin feel deeply hydrated, balanced, and plump. I have received so many compliments on how good it looks. After trying a bunch of different brands, this minimalist ritual has been a refreshing, skin-saving change. If your skin is changing with age and you are struggling with sensitivity, please give this a try!
I've been using for a week and already my skin feels better for it. It goes on easily and isn't greasy, smells great too! Have purchased again to give as gifts
Amazing thanks.
So good
Amazing products
I got the power day serum and at first I thought it's just an oil, how is this going to reduce my wrinkles. But 3 weeks into using it morning and before going to bed I clearly saw the difference. My forehead lines have gone and even fine lines around my mouth and eyes.
What I like about the product as well it's that super hidrantes my skin as I have dry skin because of the hard water in the UK. Overall very happy with the product, I will keep purchasing, thank you Emiko!
Repeat order, might have already done a review but happy to do another because its so good! I love using this serum everyday with the Emiko Glow moisturiser. Since using these products I have had a few people mention that my skin is glowing! so I'm definitely going to keep using these products
Love
Love
Love love love
AS ALWAYS, I LOVE EMIKO PRODUCTS. AND EMIKO ALWAYS, LEAVES A NICE MESSAGE X
I always found it difficult to find a cleanser that doesn’t leave my skin dry or stretchy. This one is easy to apply, feels good during and after use. If I wear make up, I tend to do two cleanses to be sure to remove everything.
Love putting my serum in before GLOW cream. It feels smooth on the skin, my skin is getting deeper moisture.
Easy to apply, last the day and leave a great feeling to the skin!
Definitely my favourite morning ritual is to spray this on my face, followed by my face cream. It really wakes you up and refreshes you at the start of the day.