Biotechnology is the melding of nature and the lab to produce safe, effective, and more sustainable active ingredients for skincare. This approach allows to recreate and develop lab-made ingredients derived from nature in a controlled environment, such as hyaluronic acid, probiotics, peptides, etc. to transform skincare routine, while having a lower environmental impact for the planet.

Our own biotechnological journey started when our scientists invented BIYUSEN™ - made from Moor Onsen Water, derived from a hot spring water in Hokkaido, Japan.

BIYUSEN™ is our wonder proprietary ingredient made of Moor Onsen Water and other plant-derived complex of actives. It helps to moisturise, softens and brighten skin while promoting inflammation relief and graceful ageing for a rejuvenated complexion.

We do not use any ingredients that are toxic, comedogenic or harmful to your skin. We have blacklisted more than 2000 "toxic" ingredients and base our formulations on factual evidence, using natural botanicals and plant-based actives as our primary formulation. 

Our formulations contain up to 99% ingredients of natural origin, and are purified of all controversial ingredients, such as endocrine disruptors, irritants, allergens.

We combine natural plant extracts with advanced active ingredients to ensure maximal efficacy.

All our products are infused with our proprietary miracle complex, BIYUSEN™, that is derived from the all-natural Japanese moor onsen (hot spring) water, which is known for its healing prowers.

We are 100% vegan and do not use ingredients derived from animals.

No, we are Leaping Bunny Certified, which means we have passed all the strict international guidelines to not test on animals throughout our supply and production chain. The Leaping Bunny is the most trusted cruelty free certification for non-animal tested products.

Our products are made in Japan.

Usually our products have 6-12 months shelf-life from first opening, or 3 years shelf-life when unopened.

Look out for the symbol of an opened jar containing a number and letter 'M' on our product packaging. This represents the number of months the product will stay good after the product is opened for the first time. Eg. 12M = once opened, you have 12 months to use it before its considered expired.

Our products do not contain mineral oils, silicones, coconut oil, beeswax, or ingredients that are comedogenic.

Yes. Our products are formulated for everyone and proven to work with optimal efficacy, regardless of gender.

If your skin reacts to a IREN Shizen product, stop using it immediately and write to us at contact@irenshizen.eu. It would help us to assist you better if you could include photos and the list of products you have used together in your routine. Our scientific team will study your case with the greatest attention in order to determine the cause of your reaction and to provide you with the best support in this process.

Our products do not contain essential oils, fragrances, parabens, hydroquinones, formaldehydes, phtalates, retinol, or any ingredients that are harmful to pregnant/breastfeeding women. If in doubt, we recommend consulting your doctor before usig any product.

After you place an order, you will receive an order confirmation at the email you provided. Please check your junk/spam folder if you don't see it your inbox. If we cannot fulfill your order, we will contact you. If you have any concerns, contact us at contact@irenshizen.eu.

As soon as your order has been confirmed, a confirmation email is sent to you. Your order number and tracking number for the parcel are found within the email.

If you have an account with us, log in and find your order information within "My Account"

Finally, you will also be able to receive follow-up emails or texts from the delivery service.

If you have correctly entered your details and added your products to your shopping bag but are unable to finalize your order, do contact us for assistance by completing the form on our contact us page, or write to us at contact@irenshizen.eu

Sometimes your browser is storing data on our site which is no longer up to date. We suggest that you try emptying your caches by using the "Shift + F5" keys if using the Google Chrome browser, or "Ctrl + F5" if using Internet Explorer or Firefox.

You have a period of 14 days from receipt of your order to return an item or items. To do this, contact our customer service department at contact@irenshizen.eu indicating your order number. You will be reimbursed on the original payment mode that was used, as soon as we receive the returned product(s), by our logistics provider and provided that they are intact and unused. Return charges are at the customer's expense. 

Do read our Refund Policy for full instructions on initiating a return.

If your order has not yet been processed by our warehouse, it is possible for us to cancel and refund your order. In this case, please contact us as soon as possible by e-mail via contact@irenshizen.eu. If the order has already been processed by our warehouse, it will unfortunately no longer be possible for us to cancel it.

The product you desire is unfortunately out of stock? To avoid missing its return, on the product page you’ll find a sign up form that will allow you to receive an email notification as soon as the product is back in stock.

Credit / Debit cards accepted:
Visa, MasterCard, American Express, Paypal

We do not accept:
Cash on Delivery (COD), Cheques

When your credit card is authorized, funds are put on hold until the transaction is completed. When the order is shipped, the payment will be processed.

Make sure your billing information matches what's on your card or try a different payment method.

If payment is still declined, please contact your bank or credit card company first. Authorization is between our banking provider and your financial institution. If you encounter any further difficulties, please email us at contact@irenshizen.eu, and we will revert within the next business day.

All information provided is strictly confidential.

It will be used soley by internal departments at IREN Shizen for delivery purposes or serving you better. We use the latest and most secure technology available, which encrypts all of your personal and credit card details.