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KO-SHU HAMIGAKI NADESHIKO Baking Soda Fresh Mouthwash 200ml

KO-SHU HAMIGAKI NADESHIKO Baking Soda Fresh Mouthwash 200ml

¥3,232 JPY
¥3,232 JPY
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Taxes included. Shipping calculated at checkout.
The KO-SHU Baking Soda Fresh Mouthwash is a functional oral rinse designed to visually reveal and remove the root causes of bad breath—namely, protein-based plaque and odor-causing bacteria that linger after brushing. Unlike conventional mouthwashes that mask odor, KO-SHU actively binds and clumps debris so you can see the cleaning effect—making it ideal for daily oral hygiene checks.

Key formulation highlights:
  • Baking soda (sodium bicarbonate): Gently lifts and breaks down stubborn protein deposits and surface stains
  • Green tea extract: Helps solidify loosened debris and provides mild antibacterial support
  • Alcohol base (ethanol): Ensures rapid dispersion and antimicrobial efficacy without added synthetic surfactants
  • 99% naturally derived ingredients — no artificial fragrances, dyes, or preservatives

The rinse works in just 20 seconds: swish, spit, and observe the visible clumping of brownish particles—proof that deep cleaning has occurred. This transparency builds user confidence and encourages consistent use, especially before social or romantic situations.

How to Use:
Swish 10–15 mL for 20 seconds, then spit out. Do not swallow. Use daily after brushing, or as needed when fresh breath is desired (e.g., before meetings, dates, or travel). Safe for adults and teens; not recommended for children under 6.

Note: Contains ethanol (alcohol) as a solvent and antimicrobial agent. Not a substitute for mechanical brushing—but highly effective as a targeted rinse when brushing isn’t possible.

Developed by a Japanese oral care specialist, KO-SHU combines practicality, honesty, and efficacy—turning routine mouthwash into a meaningful part of your daily self-care ritual.
KO-SHU mouthwash, baking soda oral rinse Japan, plaque removal rinse, green tea breath freshener, alcohol-based mouthwash no fragrance, bad breath check rinse, tea and baking soda mouthwash, Japan-made oral care, transparent cleaning rinse, KO-SHU 200mL, odor-causing bacteria remover, daily oral hygiene check.
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Frequently Asked Questions (FAQ)

What payment methods do you accept?


We accept a variety of payment methods, including credit cards (American Express, MasterCard, Visa, JCB), PayPal, Apple Pay, Google Pay, and Shop Pay. Simply choose the option that is most convenient for you during checkout.

What is the delivery time?


Delivery usually takes between 5 to 20 business days, depending on your location. We work hard to ensure your order arrives as quickly as possible!

How soon will my order be shipped after purchase?

Shipping times vary by product, but we usually process and ship your order within 1 to 2 business days after payment confirmation. The delivery time depends on the shipping method you choose.

Can I make changes or cancel my order after placing it?

If you need to make changes or cancel your order, please contact us as soon as possible. We can accommodate changes or cancellations as long as the order has not been shipped yet.

How can I track my delivery status?

After your order is shipped, we will provide you with a tracking number so you can monitor the delivery status. Additionally, we have a "Track My Order" page in the menu on our website, where you can easily check the status of your shipment.

Do you offer a warranty on your products?

Yes, all of our products come with a warranty against manufacturing defects. If you encounter any issues with your product, please contact our support team. We only sell original products, ensuring high quality and reliability.

What should I do if my product arrives damaged?

If your product arrives damaged, please contact us immediately. To help us resolve the issue, kindly send a photo of the damaged item, and we will assist you with the next steps.

How can I contact customer support?

If you have any questions or need assistance, feel free to contact us at lulupun.contact@gmail.com. We’re here to help!