CLEAR UP Anti-Blemish Discovery Kit

¥7,100 JPY

Travel-size serums for radiant skin anytime, anywhere





Discover enviable skin clarity with these three-piece curated serum minis. Reinforced with the anti-inflammatory healing powers of Biyusen™ potent superfruits from Japan, this skin-perfecting treatment trio works synergistically to combat stubborn acne and clogged pores while gently exfoliating and soothing inflamed skin, to expertly protect skin from future breakouts for a radiant and clear complexion.

The Discovery Kit includes CLEARER DAYS Anti-Blemish Serum 5ml, KEEP CALM Soothing Serum 5ml and GLOW-GETTER Renewal Serum 5ml.


  • Treat acne and acne scars, reducing future breakouts without over-drying skin
  • Heal, hydrate, and calm inflamed and sensitive skin
  • Exfoliate skin and pores to remove dead skin cells
  • Reduce the appearance of whiteheads and blackheads

30 DAYS satisfaction guarantee

If for any reason you are less than completely satisfied with your purchase, please contact us within 30 days for a full refund - no questions asked.
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FREE delivery to SG with order S$90+
FREE 3 samples with any order
Recovers the equivalent of 80 bottles of ocean-bound plastic Plastic is cleaned from rivers and shorelines, providing income to local waste pickers. You can track your impact after purchase.

What's Inside

Our best-selling serums perfectly sized to try. Travel essentials you can take for every destination. Hover over the product photo to see the active ingredients.

Our best-selling serums perfectly sized to try. Travel essentials you can take for every destination. Hover over the product photo to see the active ingredients.

Dive Into the Evidence

Visible Results

91% saw healed acne after 1 week.

94% saw blemish was less red and less uncomfortable after 2 weeks.

93% said it helped in preventing them from picking at their acne after 4 weeks.

*Sensory testing based on 68 women aged 25 - 35.

Patented Encapsulation Technology

72 Hours Time Release

Our powerhouse serums host our very own patented Encapsulated Biyusen™ technology to timely unlock each ingredient’s actives, discharging them 10 times faster and deeper into skin cells. Each encapsulated active ingredient has a time release effect, allowing for higher concentrations without harming the skin. The nutrients are slowly released into the deeper layers of the skin, delivering long-lasting effects that can be observed for up to 72 hours.

Nature's Healing Water of Japan


The story of BIYUSEN™ started in a faraway plant-based hot spring in Hokkaido, where a chance observation of the locals' flawless skin led to the creation of IREN Shizen's iconic ingredient. Infused with a organic blend of cell-renewing acids, this luxurious bio-ingredient gently exfoliate to reveal translucent complexion that transcends age. With more than 70% of BIYUSEN™, every drop of the serum leaves skin feeling fresh, touchably soft and hydrated.


Made to Personalize

All skin is unique. Rather than defining skin through general skin type, effective skin treatment requires a perfect-fitting solution that treat specific skin conditions. Our 7 customised serums are purposely crafted with the purest and highest grade of active ingredients tailored to unique skin concerns, scientifically proven to always deliver visible results. Take the skin quiz expertly designed by our scientists and dermatologists for you to curate the precise serum combination for a more plumped and youthful complexion.

How to Use

Use in the morning and night after cleansing or/and toning face. Dispense 3-4 drops onto palm and gently pat in serum across the face and neck. Use alone or mix up to 3 serums according to your needs.

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Why are IREN Shizen serums customizable?

No two skins are alike. Just because your friend's skin responds well to a certain product doesn't mean it will be good for you. That's why we created seven serums with specific targeting functions, which serve up to 35 unique combinations for you to mix and match around for the tailored solution for your skin needs.

How do I know which serums are the best for me?

Our resident dermatologist has developed an online quiz that considers your skin concerns, background, and lifestyle. This quiz asks the same questions that she would ask a patient in the clinic to determine the best serums to meet your needs. You can take the Skin Quiz to find out which serums are most effective for you.

Do I have to mix the different serums?

To get the best results, we recommend mixing different serums from our collection. You can use them alone or layer them, or even combine up to three serums. We found through research that many people have multiple skin concerns at once, so mixing can address those concerns simultaneously. Our serums are encapsulated, which means they can be mixed without losing efficiacy. The encapsulation technology keeps the active ingredients fresh, separate, and prevents oxidation.

Why is it advisable to mix up to 3 serums only?

We have performed countless tests to determine the optimal amount of active ingredients needed for the best results. Adding more serum to the mix will mean that the amount of active ingredients in each serum will be too little to have a good effect on the skin.

How often do I need to use the serums before seeing the result?

Everyone's skin is different, so the results vary depending on your skin health. For the average adult, it takes around 28 days for skin cells to turn over, so, as a general rule of thumb, you should only start to see real changes in your skin after between four to six weeks of consistent use.

Can I use the serums around my eyes?

Yes, as long as you have chosen a suitable formulation for your skin. There are three serums that are specially formulated to address under-eye concerns.

  1. FOREVER YOUNG Anti-Aging Serum contains multiple peptides that lift sagging skin and reduce fine lines around the eyes. 
  2. SKIN REBOOT Antioxidant Serum contains a caffeine solution that reduces eye puffiness and improves circulation to lighten dark eye circles.
  3. QUENCH-UP Hydrating Serum contains hyaluronic acid that restores lost skin moisture and rejuvenates the delicate skin around the eyes.