KOSEN DUAL SYSTEM 1 + 2 SERUM

KOSEN DUAL SYSTEM 1 + 2 SERUM

£64.00
1 1

KOSEN DUAL SYSTEM 1 + 2 SERUM

£64.00
£64.00
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Two complementary PATENT PENDING formulas work together - KO PEPTIDE hydrates and supports firmer, smoother-looking skin with advanced peptides, while SEN RADIANCE nourishes and protects with powerful oil-soluble actives. 

Why two? Because different ingredients work best in different environments. KO PEPTIDE works in a water-based formula; SEN RADIANCE in an oil-based formula, allowing each to work deeply & more efficiently.

And it's been tested on 43 women over 8 weeks, with 98% seeing improved glow and radiance, 91% increased hydration and 86% smoother skin.

So you're getting this really clever combination of Japanese-inspired simplicity, modern formulation and proven results.

The result? Used together morning and night, KOSEN delivers a complete treatment of hydrated, nourished and smoother looking skin, with that really healthy-looking glow.

If you are new to EMIKO, start with our POWER and BOOST serums to discover what your skin loves, then explore KOSEN when you're ready to take the next step. Every formula has its place - it's about finding the right starting point for your skin.

Refunds & Exchanges

Returns & Exchanges

Our products are eligible for returns within 14 days from the date of purchase. To initiate a return or exchange, please email us at hello@emikoskincare.com

It's important to be aware that customers are responsible for covering any additional shipping costs associated with returns and exchanges.

 

Damages & Issues

Should you encounter any issues such as defects, damages, or receiving the wrong item, please reach out to us within 14 days of receiving your order. This will enable us to promptly address and rectify the situation for you.

 

How to Apply

Cleanse your skin and leave it damp.
Apply one pump of KO, followed by one pump of SEN. Massage both products thoroughly into the skin. Use morning and night, always finishing with your moisturiser (and an SPF during the day).
*If you have sensitive skin, use 3 times a week & build up to day & night use.

Full list of Ingredients

Powered by our KOSEN® PATENT PENDING FORMULA

KO PEPTIDE:
*83% Organic 98% Natural
Allergens: Geraniol, Citronellol, Benzyl Alchohol

SEN RADIANCE:
97% Natural
Allergens: Benzyl Alcohol

Frequently asked Questions

Why are there two formulas?

Different ingredients work best in different environments. KO PEPTIDE delivers water-based hydration and advanced peptides, while SEN RADIANCE carries oil-soluble ingredients, including Bakuchiol and a stable form of Vitamin C. Rather than asking one formula to do everything, KOSEN allows each to perform its own role as part of one complete system.


How do I use KOSEN Dual System Serum?

Use KO PEPTIDE and SEN RADIANCE together, morning and evening, as part of your skincare ritual. Apply after cleansing and NIPPON Essence, then follow with GLOW moisturising cream. Finish your morning routine with a broad-spectrum sunscreen.


Do I use both serums morning and night?

Yes. KOSEN is designed to be used together morning and evening. The two formulas complement one another, providing water-based hydration alongside nourishing, oil-soluble actives.


Is KOSEN suitable for sensitive skin?

Every skin is unique, and even carefully formulated products may not suit everyone. If your skin is sensitive or reactive, we recommend introducing KOSEN gradually and patch testing both formulas before use. If you are new to EMIKO, you can begin with POWER and BOOST as you discover what works best for your skin.


Can I use KOSEN with my existing skincare routine?

Yes. KOSEN can be incorporated into your skincare routine after cleansing and NIPPON Essence and before a moisturising cream. If you use prescription skincare or strong exfoliating products, seek professional advice about combining them with your routine.


Can I use KOSEN if I already use POWER and BOOST?

It is best to use either POWER and BOOST or KOSEN.
If you have sensitive skin, use POWER & BOOST and move to KOSEN if it suits your skin. Every formula has its place - it's about finding the right starting point for your skin.


Is KOSEN fragrance-free?

The formulas have their own natural ingredient profiles. Please refer to the product packaging for information about fragrance


Can I use KOSEN during pregnancy or while breastfeeding?

If you are pregnant or breastfeeding, consult your healthcare professional before using KOSEN.


How should I store KOSEN?

Store both formulas in a cool, dry place away from direct sunlight. Keep the containers closed when not in use.


Is Kosen vegan?

Yes.


What is the shelf life of KOSEN?

12 month after opening.


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Five intelligent layering steps. Add the full ritual to your bag in a single tap.

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The Method

THE EMIKO CORE RITUAL

Follow along with the video for the full method

01 Step 1

Awaken the lymphatic flow

02 Step 2

The Sculpting Cleanse

03 Step 3

The Hydration Essence Layer

04 Step 4

The Serum Infusion Day/Night

05 Step 5

The Glow Seal

Let customers speak for us

from 148 reviews
A Lifesaver for My 40s – Completely Transformed My Reactive Skin!

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!

Mrs Amy bennett
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Lizzie
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Amazing thanks.

Duncan, Yarroll,
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Duncan, Yarroll,
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Amazing products

Duncan, Yarroll,
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I'm impressed

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!

Simo M
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On my 3rd bottle for good reason!

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

Iona Buckley
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Love

Liz
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Love

Liz
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Love love love

Liz
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CHRIS

AS ALWAYS, I LOVE EMIKO PRODUCTS. AND EMIKO ALWAYS, LEAVES A NICE MESSAGE X

CHRISTINE NASH
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Love it!

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.

Lo C
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Works great!

Love putting my serum in before GLOW cream. It feels smooth on the skin, my skin is getting deeper moisture.

Lo C
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Love it!

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Lo C
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Favourite morning ritual

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.

Justine
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