Frequently asked questions

ATO is a sustainable and effective solution to soothe irritated, atopic/eczema-prone, and extremely dry skin with the power of millions of live bacteria. These good bacteria fight the bacteria causing atopy and strengthen and restore the skin’s microbiome. Additionally, all YUN products are microbiome-safe and help to prevent future skin issues.

Do you regularly suffer from itching, redness, dryness, irritation, flaking…? In other words, do you have bad bacteria on your skin? Then ATO REPAIR Therapy is your best choice! This therapy actively combats irritated, atopic/eczema-prone skin and strengthens the skin barrier with the power of live bacteria.
Are your symptoms of atopic/eczema-prone and extremely dry skin under control or reduced, and are you looking for daily skincare? Then ATO PROTECT Therapy is ideal for you. These products will daily protect your skin microbiome and hydrate your skin.

Do you often suffer from itching, redness, dryness, irritation, flaking? Then it is best to use ATO PROBIOTIC REPAIR Cream, which acutely combats irritated, dry, atopic-prone skin with millions of good bacteria, providing 96% more hydration after 30 minutes compared to the start. The cream repairs, protects, and strengthens your microbiome with live lactobacilli!
Have your symptoms reduced? Is your skin more healed? Then we recommend the ATO POSTBIOTIC HYDRA Face Cream as a hydrating and soothing day and night care for the face, in combination with the ATO POSTBIOTIC HYDRA Body Cream, which nourishes the entire body and provides long-lasting hydration.

Do you have sensitive skin that regularly itches, flakes, feels rough or is very red? Then it is best to use the ATO PREBIOTIC NOURISHING Oil Wash, a mild wash oil that intensely nourishes and soothes the skin.
Do you have dry or sensitive skin that sometimes feels tight and dry? Then the ATO PREBIOTIC Wash Gel is recommended. This gentle cleanser softens the skin and strengthens the skin microbiome.

Step 1: First, use an ATO wash gel to gently cleanse the skin and protect and strengthen your skin microbiome.
Step 2: Then apply one pump of the appropriate ATO cream to the skin. Are you using ATO PROBIOTIC REPAIR Cream? Then you need to first break open the microcapsules in the cream by pressing them with a fingertip in your palm before applying it to the problem area. This releases the bacteria so they can do their work!
Use the set twice a day, preferably in the morning and evening.

Yes, this is intentional! These small beads are microcapsules containing good bacteria. You need to break them by first pressing the cream in your palm with a finger to release the good bacteria. After applying the cream to your skin, you may find a few flakes remaining; these are remnants of the broken capsules that you can simply wipe away.

Room temperature is ideal! Make sure they are not exposed to temperatures above 25°C and do not put them in the fridge.

As long as you want! Our ATO products have no side effects and are completely safe even for long-term use. After using ATO REPAIR Therapy, you can switch to ATO PROTECT Therapy for microbiome-safe care of dry, atopic-prone skin.

The microcapsules are made from seaweed and are biodegradable. These capsules, 1 to 2 mm, contain live lactobacilli. By protecting the lactobacilli in the core of the microcapsules, they can remain alive and function optimally when used.

For optimal results, you need to use the products for at least 4 weeks, as this is the period your skin microbiome and immunity need to adapt and come back into balance. You might experience a slight increase in flare-ups during the first week.
Be patient, they will soon pass! Your skin will thank you!

We advise against it!
Conventional skincare products like soap, lotion, cleansers, scrubs… can contain antibacterial ingredients and preservatives that can literally undermine the effectiveness of good bacteria. Even your natural microbiome can be disrupted! All YUN products are tested to ensure they do not affect the microbiome and do not interfere with the effectiveness of good bacteria. So be sure to check out the other YUN product ranges if you are looking for microbiome-safe products.

You should always use sun protection! Getting sunburned is never good. However, make sure to leave at least half an hour between applying ATO PROBIOTIC REPAIR Cream and sunscreen. This way, the effectiveness of the good bacteria is minimally affected. The same applies to make-up, choose a pore-friendly product to minimize clogging of the pores.

Of course! You can safely use all YUN products during pregnancy and while breastfeeding. Did you know that we use the same bacterial strains that protect newborn babies during their first months after birth?

Since these products are completely safe, they can certainly be used by children and babies. Did you know that we use the same bacterial strains that protect newborn babies in the first months of their life?

YUN’s ATO range is specially developed for dry, atopic-prone skin with symptoms like itching, irritation, redness, dryness, flaking, etc. Additionally, the ingredients in all YUN products are specifically chosen because they are gentle and mild on the skin, promote hydration, and are free of harsh chemicals.
These microbiome-safe products are therefore also suitable for people with rosacea, xerosis, psoriasis, and sensitive skin. Do you suffer from pimples and impurities? Then we gladly recommend our ACN products.

No, our ATO products do not contain fragrance.
Sensitive, atopic-prone skin is more susceptible to irritation, and using products with fragrance increases the risk of irritation, itching, dryness, redness, and flaking. By choosing fragrance-free skincare products, you reduce the chance of irritation, allergic reactions, and other skin problems, which is essential for maintaining healthy and calm atopic-prone skin.

No YUN product or ingredient is tested on animals. Cosmetics tested on animals are legally banned in Europe.

Absolutely! Our experience says yes, but it depends a bit because each mascara is different. Generally, ACN PREBIOTIC MICELLAR Water does the job perfectly. So, feel free to enjoy cleansed skin without the hassle!

No, it’s better not to. The ACN PREBIOTIC MICELLAR Water is fantastic, but it can’t replace the ACN Washes. The CAN Washes are there for a deeper cleanse, especially to remove excess sebum. So, use them together for the best results!

Nope! You don’t have to rinse your skin with water after using it. Just apply on a cotton pad, wipe, and you’re done.

ACN is a sustainable and effective solution to reduce pimples, blackheads and blemishes with the power of millions of live bacteria. These good bacteria fight the acne-causing bacteria and strengthen and restore the skin microbiome. In addition, all YUN products are microbiome safe and help prevent future skin problems.

Do you regularly suffer from pimples, blemishes, blackheads, …? In short, bad bacteria messing with your skin? Then ACN REPAIR Therapy is your choice! This therapy actively fights pimples and impurities with the power of live bacteria.
Are you more prone to occasional pimples and blemishes and looking for a daily skin care solution? Then microbiome safe protection and care is your top priority! ACN PROTECT Therapy protects your skin microbiome daily and keeps acne-prone skin pimple-free.

Do you suffer from pimples, blackheads and blemishes more often than not? Then you should use the ACN PROBIOTIC REPAIR Cream which actively fights pimples with millions of good bacteria and provides 50% more hydration. The cream repairs, protects and strengthens your microbiome with live lactobacilli!
Are you more prone to occasional pimples and blemishes? Then we recommend the ACN HYDRA PROTECT Cream for you: a non-comedogenic cream that actively regulates sebum and provides long-lasting hydration.

Are you prone to breakouts, blackheads and blemishes? If so, the ACN DEEP EXFOLIATING Face Wash is the best choice if you have oily or combination skin. Go for the ACN GENTLE EXFOLIATING Face Wash if your skin is more likely to be dry. Both washes remove excess sebum and ensure that the breeding ground for bad bacteria is removed.
Are you more prone to occasional pimples and blemishes? If so, we recommend the ACN PREBIOTIC PURIFYING Face Wash, which will purify your skin and is suitable for all skin types.

Step 1: First, use an ACN Wash Gel to remove excess sebum while also protecting your microbiome.
Step 2: Apply one pump of ACN Face Cream. Do you have the ACN PROBIOTIC REPAIR Cream? Make sure to crush the microcapsules first! Apply the cream in the palm of your hand and crush the capsules with your fingertip. This will release the bacteria and allow them to do their job!
Use twice a day, preferably morning and evening.

Don’t worry, this is absolutely normal! These little pearls are the microcapsules that contain the good bacteria. You need to break them open by first crushing the cream in the palm of your hand with one finger to release the good bacteria. After you apply the cream to your skin you may find that a few flakes remain, these are leftovers from the broken open capsules that you may simply wipe away.

The microcapsules are made from seaweed and are biodegradable. These 1 to 2 millimeter capsules contain live lactobacilli. Protecting the lactobacilli in the core of the microcapsules allows them to remain alive and optimally effective during use after crushing them.

For optimal results you should use ACN for a minimum of 4 weeks, this is the period your skin microbiome needs to adjust to get back into balance. Therefore, it is possible that you are struggling with flare-ups in the first week. Be patient, these will blow over! Your skin will thank you.

It’s better not to! General skincare products such as soaps, lotions, cleansers, scrubs, etc. may contain antibacterial ingredients and preservatives that can literally kill off the functioning of good bacteria. Even your natural microbiome can be disrupted! All YUN products are tested not to affect the microbiome and meant to not disturb the effectiveness of the good bacteria. So be sure to check out YUN’s other product ranges if you are looking for microbiome-safe products.

You should definitely use sunscreen! After all, burning is never a good thing. However, you should leave at least half an hour between applying ACN PROBIOTIC REPAIR Cream and sunscreen. This way, the functioning of the good bacteria is affected as little as possible. The same applies to makeup. Again, preferably choose a non-comedogenic powder form and be sure not to apply it too thickly to cover the pores as little as possible.

Of course you can! You can safely use all YUN products during pregnancy and also if you are breastfeeding. By the way, did you know that we use the same strains of bacteria that protect newborn babies during their first months of life?

The ACN range from YUN has been specially developed against pimples, blackheads and blemishes. In addition, the ingredients in all YUN products are specifically chosen because they are gentle on the skin, promote hydration and are free of harsh chemicals. Therefore, these microbiome-safe products are also suitable for people with sensitive skin or skin problems other than pimples and blemishes.
Alongside ACN, YUN also developed the ATO Probiotic Repair Cream, designed to support and soothe dry, irritated or eczema-prone skin. This cream helps to restore the skin barrier with live probiotics, providing gentle care and long-lasting comfort for sensitive skin conditions.

Just room temperature is perfect! Make sure that the products are never exposed to temperatures above 25°C or put them in the refrigerator.

As long as you like! ACN has no side effects and is completely safe, even in the long run. However, after using the ACN REPAIR Therapy you can switch to the ACN PROTECT Therapy for microbiome-safe care of acne-prone skin.

No YUN product and no ingredients have been tested on animals. Cosmetics tested on animals are prohibited by law from sale in Europe.

Use BBY according to the instructions on the packaging. Use it until the discomfort disappears. YUN BBY is safe for continuous use, so you can keep your baby’s protective layer balanced and shielded against harmful external influences.

No YUN product and no ingredient has been tested on animals. In Europe, cosmetics tested on animals are legally banned from being sold.

Yes, you should always use sun protection when your baby is exposed to the sun! Sunburn is never good, especially for delicate baby skin. Always apply the highest SPF for the best protection. Leave at least half an hour between applying the BBY PROBIOTIC Diaper Ointment and the sunscreen. This way the beneficial bacteria are affected as little as possible.

No, BBY products do not sting the eyes. Did you know that a baby only blinks twice per minute, while an adult blinks about 15 times? This means there’s a bigger chance your baby might get some product in their eyes during washing. Always protect the eyes when rinsing (e.g., with a washcloth).

The microbiome is a layer of microscopic organisms (bacteria and fungi) that protect us against pathogens. We receive it from mom at birth. A baby’s microbiome is very fragile and still developing. That’s why it’s crucial to protect it so your baby grows strong and resilient. Proper care and protection are important for your baby’s health, not only in the first years but also long term. A healthy microbiome reduces the risk of various autoimmune diseases such as allergies, eczema, asthma, diabetes, obesity, etc.

Lactobacilli are indispensable in early life. Their concentration in mom increases during pregnancy, they are present in the amniotic fluid, in the birth canal during delivery, and in breast milk during breastfeeding. They are an essential ingredient for a baby’s development. Lactobacilli help the immune system develop, promote anti-inflammatory effects, and reduce the risk of skin and autoimmune diseases in the long run. You could call them vital to life!

Yes. All YUN BBY products are evaluated according to European cosmetic regulations (EU Regulation 1223/2009). They are specially developed for babies and children under 3 years old.
A certified toxicologist has, together with YUN, assessed each product based on the ingredients used, the intended use, and the young target group. The evaluation shows that the products are safe under normal and foreseeable use.
The products are also properly notified in the European system (CPNP) and meet all legal requirements.

Room temperature is perfect! Just make sure the products are not exposed to temperatures above 25°C.

The BBY PROBIOTIC Diaper Ointment contains live lactobacilli (these are good bacteria, also known as probiotics). These beneficial bacteria provide strong protection and support in the microbiome development and balance of your baby. That’s the natural protective layer that is essential for health in the early years of a baby’s life, but also in the long run!

STEP 1: Apply a small amount of BBY PREBIOTIC Body & Hair Wash Gel to damp skin and/or hair and rinse off.
STEP 2: Apply a small dose (1 or 2 pea-sized amounts) of the BBY PROBIOTIC REPAIR Diaper Ointment to clean and dry baby skin and gently massage in. Repeat at every diaper change to continuously protect the skin.

In mom’s belly your baby is not alone: they are surrounded by millions of microscopic bacteria. These tiny friends protect them during their first steps into the world and help build a strong immune system. Moreover, mom passes on a powerful layer of millions of good bacteria through the birth canal. Protecting their microbiome with YUN BBY supports them every day, always. YUN BBY actively restores, protects and strengthens your baby’s skin microbiome, so they can naturally build a healthy protective barrier.

Better not! Conventional care products such as soap, lotions, shampoos… can contain antibacterial ingredients and preservatives that disturb the functioning of beneficial bacteria. Even the natural microbiome (the protective layer passed on from mom) can be disrupted! All BBY products are tested for microbiome safety and support the activity of good bacteria. This way your baby’s natural protective layer stays intact.

FNG helps reduce athlete’s foot, flaking, dry feet, itching,crevices and other irritations. FNG contains millions of good bacteria that fight the bad fungi and balance the skin flora. A balanced skin flora also prevents future skin irritations.

Wash your feet and dry them thoroughly. Don’t forget to dry the space between your toes properly too. Shake the FNG Spray heavily and spray onto the problem area from a distance of 20 cm. Spray in short bursts of one second. After you have sprayed the problem area, wait a few minutes before putting on socks and shoes.

Yes, the FNG Spray does contain good bacteria. The patented YUN bacteria (YUN-V1.0, YUN-V2.0 and YUN-S1.0) in the FNG Spray have been specifically selected to combat athlete’s foot.

Yes, smelly feet are caused by bacteria, yeasts and/or fungi that use sweat as a breeding ground. YUN’s FNG Spray can help against this.

Yes you can! FNG Spray also helps to fight the fungi in your shoes and socks and reduces the chance of reoccurrence of fungi. Ideally, spray FNG on your socks after washing them.

We recommend to use YUN FNG Wash because it supports the fuctionning of the good bacteria in the FNG Spray. Most soaps on the market often contain antibacterial ingredients and preservatives that influence the action of the good bacteria.

Better not, because most sprays contain antibacterial ingredients that disrupt the function of the good bacteria in the FNG Spray.

FNG Spray should be stored at room temperature. Make sure the spray is never exposed to temperatures above 24°C.

Depending on the size and location of the problem, an average of 2 to 6 weeks are needed to treat itching, irritation and flaking. Continue FNG for at least one week after visible healing.

Of course you can! You can safely use all YUN products during pregnancy and when breastfeeding. Did you know that we use the same strains of bacteria that protect newborn babies during their first months?

No YUN products and none of the ingredients have been tested on animals. The sale of cosmetics tested on animals is banned by law in Europe. None of the ingredients used is of animal origin.

The formula is specially developed to protect and strengthen the vaginal flora. By maintaining the natural pH balance, VGN Wash not only helps prevent intimate itching and irritation, but also actively supports the body’s natural defense against unwanted bacteria and fungi. The result: a fresh, comfortable, and healthy feeling – every day, without disturbing the natural balance.

The intimate VGN Wash is suitable for daily use. Apply a small amount of VGN Wash to your vagina and rinse well with water. VGN Wash is for external use only.

The vagina is naturally acidic which means that the vaginal pH varies between 3.8 and 4.5. VGN ensures active pH regulation via lactate and the maintenance of a healthy vagial flora. This promotes the growth of lactobacilli and inhibits the growth of bad bacteria.

Better not, it is best to use only VGN Wash. Even vaginal soaps that maintain the pH value of the vagina contain preservatives and surfactants that kill the good bacteria and can unbalance the vaginal flora.

Of course you can! You can safely use all YUN products during pregnancy and when breastfeeding. Did you know that we use the same strains of bacteria that protect newborn babies during their first months?

Yes, VGN Wash contains only microbiome safe ingredients that have no side effects in the intimate area.

No YUN products and none of the ingredients have been tested on animals. The sale of cosmetics tested on animals is banned by law in Europe. None of the ingredients used is of animal origin.

Apply a small amount of VGN Probiotic Repair Gel directly to the intimate area. Use it daily or whenever you experience irritation, dryness, or an imbalance. The gel can also be used preventively after washing, after sex, or during an antibiotic treatment to provide extra support for the vaginal flora. Allow the gel to absorb; rinsing is not necessary.

Yes. After placing your order, you will automatically receive a confirmation email with all order details. Once your order has been shipped, you will receive a separate email with your invoice and tracking link.

This depends on how quickly you contact us and whether your order has already been processed. If your order has not yet been processed by our warehouse, we can usually still cancel it. Once processing has started, cancellation is unfortunately no longer possible.

You can contact us via info@yun.be. If possible, please mention your order number or attach a copy of your invoice so we can assist you more efficiently.

No, we currently only ship within the European Union.

No, the exact delivery timing is determined by the carrier.

The carrier will usually leave a notice or deliver your package to a pickup point. Please also check your tracking information for updates.

Please contact us within 24 hours via info@yun.be and includ e clear photos of the damage and packaging.

Please first check your tracking link. If your package has still not arrived after five working days and the tracking information is unclear, please contact us within ten working days after shipment.

Orders placed on working days before 4 PM are usually shipped the same day. During busy periods, shipping may occasionally take one additional working day.

We accept popular payment methods including Bancontact, Payconiq, iDEAL, credit card and PayPal. Bank transfers are not accepted.

Once we have received and inspected your return, the refund is usually processed within 1 to 5 working days via the original payment method.

Yes. Unopened products can be returned within one month. Return shipping costs are at the customer’s expense.