
*This is a review from a pre-experience group with no compensation.
*Effects may vary from person to person.























































































The ingredient prescribed by dermatology clinics and Cheongdam aesthetic shops for troubled skin or for those who have experienced irritation after procedures is high-purity guaiazulene extracted from natural chamomile.
Ironically, guaiazulene is a concentrated oil-soluble (oil) ingredient, and when used in high concentrations, it can actually clog pores with excessive nourishment and cause breakouts.
Blue Soothing Booster has been improved to gently work even on skin sensitive to oil ingredients by using sodium guaiazulene sulfonate, a water-soluble stabilized form of guaiazulene.

This precious ingredient
- quickly soothes redness and heat,
- suppresses inflammatory responses that occur when the skin barrier is weakened, making it suitable for sensitive skin.
- Relieves skin aging caused by reactive oxygen species and protects the skin from external stressors.











































Maker Story

Hello, innovation in the derma industry,
4th generation derma brand yususu This is yususu.
Yususu was born based on the know-how and data of a brand that has entered thousands of domestic skin care institutions and dermatology clinics in over 20 countries worldwide for about 30 years.
Last year alone, after business trips to 10 countries, lectures to a total of 635 dermatology doctors at home and abroad, and operating booths at five global dermatology conferences (France, UAE, China, Indonesia, Korea), we realized that dermatology-specialized derma brands are still difficult. In other words, the way of communicating with consumers is one-way and closed.
We did not want to follow the complicated rules of derma brands. We wanted to create intuitive and friendly derma products. Professional, but very simple.
In fact, our skin structure is also simple. It consists of oil and moisture, and the ideal cosmetics follow that structure to achieve a good oil-moisture balance.
Yususu is a brand that contains one drop of oil, two drops of moisture, and three drops that most resemble my skin. It offers a precise balance of oil and moisture based on expert dermatological prescriptions, providing the perfect balance for your skin.
Why Wadiz?
In an era where everyone talks about derma, what is often overlooked is 'how my skin is right now.' Yususu starts from the sense that I know my skin best and proposes personal derma, active derma that resembles me.
We plan to move away from the culture of following one-way skincare prescriptions and create a 'personal derma care' culture where users design their own routines according to their skin condition.
To create a new paradigm and culture in skincare, we chose the community-based platform 'Wadiz,' where we can grow through close communication with our supporters.
We want to create a better brand and a better culture together with our supporters.
Funding Usage Plan
The funds will be used for reward production costs, research for new projects, and for promoting a campaign for an active skincare usage culture.
Reward Shipping Information
- Shipping method: CJ Logistics
- Islands/mountainous areas: Additional shipping fee of 4,000 KRW
- Shipping schedule: Please refer to the reward for the specified shipping start date.
*Further details and changes regarding shipping will be provided through updates. - Inquiry channel: Kakao Plus Friend @yususu or Wadiz message (Consultation hours: Weekdays Mon-Fri 10:00 ~ 17:00, excluding holidays)
Precautions and FAQ
- 'Blue Soothing Booster' contains a highly concentrated blue azulene extracted from chamomile, which may cause temporary blue staining when used alone, but it will disappear over time after use. For intensive soothing, we recommend applying it alone at night.
- Azulene, a naturally derived ingredient, has a beautiful blue color, but its color may gradually change when exposed to light and heat. This color change is a natural phenomenon of the ingredient and does not affect the product at all, so please use it with confidence. (To maintain the blue color of natural azulene for a longer time, store it in a low-temperature cosmetic refrigerator or cosmetic box, away from direct sunlight or heat.)
Q1. Do I have to mix it in the container? Can I mix it directly on my hand?
A. To ensure the ingredients are well mixed and absorbed effectively, we recommend shaking and mixing it in the container beforehand. However, if you want to combine it in various ways depending on your skin condition each day, you can layer it directly on your face or mix it on your palm or the back of your hand.
Q2. Can pregnant or breastfeeding women use it?
A. Based on the full ingredients, there are no major issues, but during pregnancy or breastfeeding, hormonal changes can make the skin more sensitive. We recommend consulting a specialist before use.
Q3. Is it safe for acne-prone or sensitive skin?
A. Yes! Yoususu has completed both non-comedogenic and low-irritation tests for sensitive skin. It is specialized for soothing without any acne-causing ingredients, so you can use it with confidence.
Q4. I don't know which combination is right for me.
A. We provide recommended routines for each skin type and situation according to the usage guide.
For example: Oily & morning routine: 2 droppers / Normal & daily routine: 6 droppers / Dry & evening routine: 8 droppers → If you are not familiar with skincare, we will guide you to make it easy to choose!
Q5. Can I apply it before makeup? Will it cause pilling?
A. Yes, the 2-dropper routine finishes lightly and is suitable for use before makeup. In particular, the combination reduces oil and replenishes moisture, which can actually help your makeup last longer.
Q6. Other skincare products together Can I use them?
A. Of course! However, Yususu serum step ‘alone even with just soothing + Moisturizing Routine Completed’Because of its structure , you do not need to layer too many products. Also the remaining Blue Soothing Booster The cream you are using, mask or pad can be mixed and used. (It can enhance the calming effect for troubled skin.)
Q7. Is it suitable for all skin types?
A. Yes. It can be used by oily, combination, dry, and sensitive skin types, You can adjust the amount of ampoule according to your skin condition to design the most comfortable routine.
Q8. The color of the product has changed. Is it still safe to use?
A. Yususu Blue Soothing Booster uses highly concentrated azulene and plant-derived soothing ingredients, so the color may fade or change depending on air or temperature. This is a natural phenomenon and does not affect the efficacy or safety of the product at all.
Q9.Refrigeration required ??A.It is not mandatory, but if you store it in a cool place , you can keep it fresh for Can do. In summer Refrigerated storage when cooling effect together feel Can do.
yususu