Barth Neutral Bicarbonate Bath Tablets 9 - Japanese CO2 bath tablets for relaxation and soft skin

BARTH Medicated Neutral Bicarbonate Bath Tablets 90 Tablets

$79.42
$79.42
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Barth Neutral Bicarbonate Bath Tablets 9 - Japanese CO2 bath tablets for relaxation and soft skin
BARTH Medicated Neutral Bicarbonate Bath Tablets 90 Tablets
BARTH

BARTH Medicated Neutral Bicarbonate Bath Tablets 90 Tablets

$79.42
$79.42
In stock
  • ✅ 30-bath supply — full month of recovery bathing
  • ✅ Warms body to the core even in lukewarm water
  • ✅ Bicarbonate ions stay dissolved longer than rivals
  • ✅ Supports fatigue, stiff shoulders & cold sensitivity
  • ✅ @cosme Hall of Fame — Japan's most awarded bath tablet
  • ✅ Free from fragrance, colorants, and harsh additives

🛡️ 100% Authentic – Japan domestic version
🚚 Ships from Tokyo
✨ Fresh stock
🛍️ Same product sold in Japanese beauty stores

Description

BARTH Medicated Neutral Bicarbonate Bath Tablets in the 90-tablet size offer a full month of carbonated spring bathing — enough time to experience the cumulative effects on circulation, fatigue recovery, and sleep quality. The formula is identical to the 30-tablet pack: a Japan-domestic quasi-drug using neutral bicarbonate technology inspired by the natural springs of Bad Nauheim, Germany.

Neutral bicarbonate ions are the active mechanism here, and BARTH's proprietary pH-neutral formula is what sets it apart from the acidic fizzy bath salts common in Western markets. Acidic formulas release CO2 gas quickly; BARTH keeps bicarbonate ions in solution throughout the soak, allowing the warming and circulatory benefits to build over the full 15-minute bath.

The 90-tablet box is the value choice for regular users and an excellent gift option — the clean packaging, fragrance-free formula, and @cosme Hall of Fame status make it recognisable to Japanese beauty enthusiasts.

Key Ingredients
  • Sodium Bicarbonate — active ingredient that generates bicarbonate ions to promote circulation and core warming
  • Sodium Carbonate — works with sodium bicarbonate to maintain neutral pH and sustain ion concentration in the water
  • Citric Acid — reacts with bicarbonates to release gentle effervescence and stabilise the formula
  • Vitamin C (Sodium Ascorbyl Sulfate) — neutralises chlorine in tap water and adds a mild skin-conditioning benefit

HOW TO USE
  1. Fill bathtub with lukewarm water (37–40°C, approx. 160L).
  2. Drop in 3 BARTH tablets and wait until fully dissolved.
  3. Soak for at least 15 minutes. Gently massage body and scalp while soaking.
  4. Use the bath water to rinse your face for an added skin benefit.
  5. Pro tip: Use consistently for 2–4 weeks to feel the cumulative difference in sleep quality and muscle recovery — the effects build with regular use.

FAQ

How is BARTH different from regular fizzy bath salts?

Most carbonated bath salts are acidic, which causes bicarbonate ions to evaporate quickly as CO2 gas. BARTH's neutral pH formula keeps the bicarbonate ions dissolved in the water for much longer, meaning more ions are in contact with your skin throughout the soak.

Why choose 90 tablets over 30?

The 90-tablet pack provides 30 full baths — a full month of daily use. It offers better value per bath and means you won't run out mid-routine. It's also the most popular gift size in Japan.

Can the whole family use it?

Yes. BARTH is fragrance-free and colorant-free, making it suitable for all ages and genders. Bicarbonate ions don't diminish quickly, so multiple family members can bathe in the same water.

Is this the Japan-domestic version?

Yes. This is the Japan-domestic 医薬部外品 (quasi-drug) formula sourced directly from Matsumotokiyoshi in Japan. TokyoShelf only carries products purchased in Japan, not export or reformulated versions.

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