Frequently asked questions

The largest concentration of harmful toxins is in the feet. Kenkou detox patches use advanced Japanese traditional medicinal techniques to help remove those elements from your body and improve your metabolism, blood flow and general wellness!

  • Step 1: Place the patch at the middle of the foot. The soft side of the patch should contact the skin.
  • Step 2: Apply the second patch on the other foot OR another part of the body you wish to remove the toxins from.
  • Step 3: Leave the patches on for 6-8 hours. It is recommended to apply the patches before sleep.
  • Step 4: Peel the patches off after 6-8 hours of use. Wash your feet and enjoy your improved well-being!

Nuubu is designed by the top specialists in traditional Japanese medicine. The ingredients used in Kenkou have been tested through generations to deliver you the best, top-of-the-line solution to the toxin accumulation.

Traditional herbal medicine and modern medicine has a shared common goal, which is helping you feel better. The widespread usage of herbal medicine has been steadily on the rise since as far back as the 1990s, therefore its effects have been thoroughly researched by the reputable institutions such as WHO. It has been stated in multiple scientific journals that “while traditional medical systems vary across cultures, all aim towards achieving overall mental, physical, and spiritual balance and harmony.”

Nuubu detox patch should have a layer of black discharge on it after use. The discharge is made up of the removed harmful toxins. The lower the toxin concentration in your body, the lesser level of the discharge you will find!

The positive effects of Kenkou should be felt after a couple of uses, however, feel free to use the detox patches as long as you feel the need! Your wellness has no limits.

You should carefully study Kenkou’s ingredients and evaluate their effects in relation to your own condition, allergies, etc. Please consult your doctor anch check if Kenkou can be used in relation to the usual medicine you take or if it is appropriate for your general lifestyle and / or dietary requirements.

  • Properties:
  • Effective results: 25ml of beauty essence reach the deepest layers of your skin;
  • Beautification: makes your face skin tighter, increases transparency;
  • Anti-aging: tightens the pores, reduces wrinkles;
  • Rejuvenating: provide vital vitamins & minerals to your skin;
  • Refreshing: moisturizes your face to great effect;
  • All-natural: contains the traditional & eco-friendly Japanese ingredients;
  • Flawless adhesion: a quality product.

  1. Carefully wash your face with warm water.
    1. If you have oily skin, please use an oil-control cleanser;
    2. If you have dry / combination skin, please use a hydrating cleanser;
    3. If you have sensitive skin, please use creamy / foaming cleansers;
  1. Dry your face with a soft towel;
    • OPTIONAL: apply toner on your face to better prepare it for essence;
  1. Please choose a mask you prefer;
  2. Please remove the mask from the individual packaging and squeeze the essence into your palm. Use your hands to massage the excess essence into the skin on your face;
  3. Unfold the Kenkou sheet mask and place it on your face aligning the holes to your eyes, nose, and mouth;
  4. Gently press the sheet mask unto your skin until it fits & stays firmly in place;
  5. Sit back and relax for 15-25 minutes. It should not stay on longer than 25 minutes!
  6. Carefully peel off the mask and discard it;
  7. Gently pat the essence into your face for maximum absorption.
  8. For optimal skin improvement, try using sheet masks once or twice per week. However, there is no limit of how often you can use it.

Kenkou face masks are highly effective in preventing skin aging, moisturizing & providing your face skin with vital vitamins and minerals. Kenkou masks use time-tested Japanese skin care techniques modernized and optimized for the greatest possible beautification results.

For optimal skin improvement, try using sheet masks once or twice per week. However, there is no limit of how often you can use it. Please, apply the mask whenever you feel the need to do so.

No: Nuubu face mask should not stay on your face for longer than approx. 25 minutes. If you leave the mask on for too long, it may dry out and start pulling moisture back out of your face.

Please store them in a dark, dry environment & out from the reach of children.

Nuubu face masks are perfectly safe to use! However, please refrain from applying it to your skin if you have allergies or if your skin was recently damaged.

Kenkou Skin Care Sheet Mask: Aloe Vera

An aloe vera extract face mask is perfect for dry skin care: it contains the highly effective moisturizing properties.

  • Ingredients
  • Aloe vera extract;
  • Peppermint extract;
  • Essence;
  • Water;
  • Additional ingredients: butanediol, sodium hyaluronate, carbomer, triethanolamine, PEG-40 hydrogenated castor oil, phenoxyethanol.

Kenkou Skin Care Sheet Mask: Avocado

The avocado extract is a traditional remedy to moisturize the dry skin used around the globe. Avocado extract face mask is perfectly balanced for your moisturizing needs.

  • Ingredients
  • Shea butter extract;
  • Essence;
  • Water;
  • Additional ingredients: butanediol, sodium hyaluronate, glyceryl glucoside, carbomer, triethanolamine, PEG-40 hydrogenated castor oil, phenoxyethanol.

Kenkou Skin Care Sheet Mask: Peach

A fresh peach extract with a high moisturizing effectiveness provides the necessary moisture to your face and reaches deep into the skin. Effectively cleans your pores, balances your sebum and moisturizes the skin.

  • Ingredients
  • Peach (PRUNUS PERSICA) extract;
  • Hazel extract;
  • Essence;
  • Water;
  • Additional ingredients: butanediol, sodium hyaluronate, carbomer, triethanolamine, PEG-40 hydrogenated castor oil, phenoxyethanol.

You can check your order status by entering your email address used for the order and/or your tracking number here: https://Kenkou.com/tracking

There are multiple reasons as to why you may not have received your order confirmation:

  • It is possible that you have entered your email address incorrectly.
  • Please check your spam folder. It is possible that the order confirmation has been filtered as spam.
  • The order process may have not been completed correctly.

If you have ruled out all of the above and have not received an email from us after placing your order, feel free to contact our customer service via the contact form you can find below. As a “subject please use the option: "Have not received an order confirmation". Our dedicated customer support team will then check whether or not your order has come through.

As long as your order has not left our warehouse we can still change and correct your delivery address. Please reach out to our customer service via the contact form you can find below using the subject "Address change". Your delivery address will then be adjusted. Once your order has left our warehouse we can no longer change your delivery address.

If you wish to cancel your order please contact our Customer Service team as soon as possible. If your order hasn’t reached the fulfilment stage it is possible we may still be able to change or cancel it.

However, please be aware that we are often unable to make these changes because we usually have your order packed and awaiting shipment within 24 hours of it being placed.

As long as your order has not yet been passed along to our logistics partner, we can cancel your order and reimburse you. Please use our contact form with the subject "Cancelling my order" and provide us with your order number. You can then simply place a new order and effectively change it on your own.

Your invoice was sent to the email you provided in your order details. If you haven't received it, you can visit the link below and enter your email address and/or your tracking number to find your invoice: https://nuubu.com/tracking

The processing time for orders is 1-2 business days. After that, delivery times are as follows:

Location United States Europe International
Standard Free Shipping 5-8 Business Days 5-12 Business Days 8-15 Business Days
DHL Express Shipping 3-5 Business Days 3-5 Business Days 3-5 Business Days

Please keep in mind that during holidays or limited edition launches this time may vary. Thank you for your patience.

**Disclaimer: current COVID-19 pandemic has disrupted the logistics network, which has affected the delivery times. As a result, estimated delivery times for some items may be longer than usual at the moment.**

Please read our shipping policy for more information.

If your order starts with the letter “S”, the order can be tracked at https://aftership.com. Please follow these instructions:

  • Copy your tracking order number.
  • Open


  • Paste your tracking number into the designated field on the page and press “track.”
  • In the page that opens up please change the tracking service from the default option to “Stone 3PL” and press track again.
  • You can now track your order status.

We offer FREE shipping to all the countries we ship to (we ship to most countries around the world using the fastest delivery methods available to us).

The warranty will cover any defects presumed to have existed at the time of delivery or which become apparent within the period of the warranty term. Extended warranty may cover more defects (e.g. water damage).

Please read our warranty policy for more information here: Kenkou Warranty Policy

If you have received a defective item, please contact our customer support at [email protected] and provide detailed information about the defect. We will change your purchased product to a new product if the warranty conditions are applicable.

  • IMPORTANT: if you wish to return item(s) you have purchased please contact our customer support at Support@kenkou.com to initiate the return process. Our customer support team will let you know the correct return address. DO NOT return any items without contacting our customer support first. If you will send your order to any other address rather than the one specified by our support team, your refund WILL NOT be issued.

Please note that your product might be changed to a newer version of no lesser value than the original product if the model that you have purchased is no longer in production.

Please be aware that you will have to return the defective item for quality inspection.

Within 30 Days Period from the delivery date of your order (to be determined by the tracking number provided) any customer who is not satisfied can return the product for a refund or replacement. Please contact our customer support explaining why you want to return your product so our support team can send you further instructions:


Please be noted that only unopened and unused Kenkou items in full sets can be returned and refunded in accordance with our policies set out below.

Please note that a restocking fee of 15% is applied to all customer’s remorse returns. Return shipping will have to be covered by the customer and any related fees will not be compensated by us.

Read more about our return policy here: Return Policy

We will give a refund for the returned product within 14 days from receiving the product at our return address. However, please note that we will only accept the returned product if it was not used, has not been damaged and has been sent back to us in the original packaging. A refund might take up to 5 days to reach your bank account after it's made.

If you have read and not found a solution in our Frequently Asked Questions, please contact us via the form below.

Contact Us

Contact Us

E-mail.: Support@kenkou.com
Tel.: +1 (914) 559-9997

® 2021 Kenkou All rights reserved.