Propolinse is the cult Japanese propolis mouthwash famous for the visible "particles" that appear after rinsing — protein and bacterial residue precipitated out of the mouth by the propolis and xylitol formula. The 600ml bottle is the standard family size and has been a Japanese drugstore bestseller since the early 2000s.

At a glance

• Best for: daily oral freshness, coffee/smoker breath, anyone curious about the famous "particle" effect
• Key actives: Brazilian green propolis extract, xylitol, tea polyphenols
• Flavour: tea-forward with herbal propolis warmth, alcohol-based
• Format: 600ml bottle, undiluted ready-to-use
• Origin: Pieras Co., Ltd., Japan — imported direct
• Best paired with: regular dental flossing and a fluoride toothpaste. Browse our Japanese oral care collection

Why we stock Propolinse

Propolinse is one of those products with a viral story attached — the "look at what came out of my mouth" demonstration has been doing the rounds on Asian social media for over a decade. We stock it because behind the spectacle is a perfectly competent daily mouthwash with a clean herbal flavour and a manufacturer (Pieras) with a long track record in Japanese oral care. We import direct, so every bottle carries Japanese-language labelling and an in-date manufacture stamp.

How to use

1. Pour about 10–15ml (a capful) into your mouth, undiluted. Do not swallow.
2. Rinse vigorously for 20–30 seconds, swishing through the front and back of your mouth.
3. Spit into a clear cup or basin — the floating particles are visible against white. Many users find this satisfying; it is not dangerous, it's a combination of bacterial biofilm and protein flocculation.
4. Do not rinse with water afterwards if you want the freshening effect to linger; rinse if you find the taste lingers too long.

Pro tip: use after brushing and flossing, not as a replacement. The mouthwash is most dramatic when your teeth are already clean — what you see is mostly soft tissue debris and protein, not plaque.

Key ingredients

• Active botanicals: Brazilian green propolis extract, xylitol, tea polyphenols (catechins)
• Carrier: ethanol (alcohol-based)
• Other: water, glycerin, sodium benzoate, citric acid, menthol, natural fragrance
• Contains: bee products (propolis) — avoid if you have a bee or pollen allergy

Propolinse vs Listerine

Both are alcohol-based mouthwashes but with very different positioning. Listerine uses essential oils (thymol, menthol, eucalyptol) and is clinically studied as an anti-plaque rinse. Propolinse leans on propolis, polyphenols and xylitol for a gentler, more herbal experience. Listerine has more anti-cavity data; Propolinse has the better flavour profile (less harsh sting) and the famous visual effect. If you want clinical anti-plaque, choose Listerine or a chlorhexidine rinse from your dentist; if you want a daily freshener you'll actually enjoy using, Propolinse is the easier sell.

FAQ

Is this authentic Propolinse from Japan? Yes. Every bottle ships in original Japanese-market packaging with the standard Pieras label and Japan-side batch codes.

What are the floating particles? A mix of protein, bacterial biofilm and mucus that propolis-tannin compounds bind together. It's harmless — not "parasites" or anything dramatic, despite what some social media posts claim.

Will it whiten my teeth? No. Propolinse is a freshener and rinse aid; tooth whitening requires peroxide-based products.

Is it safe to swallow? No — the formula is alcohol-based and designed to be spat out. Keep out of reach of children under 12.

How long does a 600ml bottle last? At one cap (about 10ml) per use, roughly 60 uses — two months for daily once-a-day use, three months at every other day.

Can I use it during pregnancy? Alcohol-containing mouthwashes are usually fine for short-term rinsing in pregnancy (you don't swallow), but some healthcare providers prefer alcohol-free options. Check with your dentist or doctor if you're unsure.

Manufacturer information

Manufactured and distributed by Pieras Co., Ltd., Japan. Propolinse is registered in Japan as a quasi-drug (Iyakubugaihin). NANA MALL imports direct via authorised channels.