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

Barth Neutral Bicarbonate Bath Tablets 90 Tablets

$92.54
$92.54 $94.90
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Barth Neutral Bicarbonate Bath Tablets 9 - Japanese CO2 bath tablets for relaxation and soft skin
Barth Neutral Bicarbonate Bath Tablets 90 Tablets
BARTH

Barth Neutral Bicarbonate Bath Tablets 90 Tablets

$92.54
$92.54 $94.90
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
✨ Delivery in 4-6 business days

Description

BARTH Medicated Neutral Bicarbonate Bath Tablets 90 Tablets is a three-month supply of BARTH's medicated carbonated bath supplement for tired and circulation-compromised skin — the value-format for established BARTH users committed to nightly bicarbonate bathing for ongoing circulation support, fatigue recovery, and skin warmth. The per-tablet cost of the 90-tablet format is significantly lower than the 9 or 30-tablet packs.

  • Sodium Bicarbonate — medicated CO₂-generating active for peripheral circulation stimulation
  • Sodium Carbonate — neutral pH maintenance for optimal ion absorption
  • Vitamin C (Sodium Ascorbate) — bath water antioxidant protection
  • 90 tablets — three-month supply at lowest per-tablet price

How three months of consistent nightly bathing differs from occasional use: Peripheral blood vessels gradually become more responsive with consistent CO₂ bathing — the body's temperature regulation improves progressively. Users bathing nightly for 3+ months report greater improvement in cold sensitivity and sleep quality than irregular users. The 90-tablet format makes the cost of nightly commitment manageable for long-term benefit.

Known in Japan as 薬用BARTH 中性重炭酸入浴剤 90錠.

The three-month pack is typically purchased by BARTH users who have experienced meaningful benefit and want to minimise monthly reorder frequency. The 90-tablet format offers the best value per bath session in the BARTH range and is the practical choice for households or individuals fully committed to nightly bicarbonate bathing as a regular wellness routine.

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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