
Uruoi Weak Acid Water Moist 200ml
Biore weak-acid water face wash — pH-balanced gentle cleanse that preserves skin's natural acidity.
- From JapanJP-Direct
- AuthenticityChecked before shipping
Biore weak-acid water face wash — pH-balanced gentle cleanse that preserves skin's natural acidity.
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About this product
A gentle, weakly acidic face wash — KAO Biore Uruoi Weak Acid Water is formulated to match the skin's natural slightly acidic pH (approximately 4.5–5.5). Conventional face washes, even mild ones, tend to be alkaline, which temporarily disrupts the acid mantle — the invisible pH shield that protects the skin from environmental pollutants and trans-epidermal water loss. Biore's Weak Acid Water formula is calibrated to match the skin's own pH, so it cleanses without stripping moisture. The Moist variant adds glycerin and hyaluronic acid for additional hydration insurance. The texture is a smooth, slightly watery lotion that lathers lightly but rinses completely. Popular among Japanese women with sensitive or easily-reddened skin who find even gentle cleansers irritating over time.
How to use
- Wet the face with lukewarm water.
- Dispense a small amount (approximately a 2cm strip) onto wet palms and lather gently between the hands.
- Apply to the face with light circular motions, focusing on the T-zone without over-cleansing drier cheek areas.
- Rinse thoroughly with lukewarm water, then finish with a brief cool water splash to close pores.
- Pat dry immediately with a clean towel; follow with toner or moisturiser while skin is still slightly damp.
Ingredients
- Water — pH-neutral base.
- Sodium Cocoyl Glycinate — pH-compatible amino acid surfactant.
- Glycerin — Humectant.
- BG — Solvent and moisture enhancer.
- Sodium Hyaluronate — Deep moisture retention.
- Citric Acid — pH adjustment to weak-acid range.
- Sodium Citrate — pH buffer.
- Fragrance (Parfum) — Light.
FAQ
What does 'weak acid' mean?
The formula pH matches the skin's natural acidity (around pH 5.5), reducing acid mantle disruption compared to alkaline cleansers.
Can I use this morning and evening?
Yes — the pH-balanced formula is gentle enough for twice-daily use.
Is it fragrance-free?
No — contains light fragrance; for strictly fragrance-free, check Curel cleansers.
Does it foam well?
Light foam — not as voluminous as Marshmallow Whip; more of a skin-condition-focused cleanser.
🇺🇸 For US customers
US shoppers discovering Japanese beauty find that the texture, feel, and finish are genuinely different from what they're used to at Target or the local drugstore. A gentle, weakly acidic face wash — KAO Biore Uruoi Weak Acid Water is formulated to match the skin's natural slightly acidic pH (approximately 4.5–5.5). Conventional face washes, even mild ones, tend to be alkaline, which temporarily disrupts the acid mantle — the invisible pH shield that protects the skin from environmental pollutants and trans-epidermal water loss. Biore's Weak Acid Water formula is calibrated to match the skin's own pH, so it cleanses without stripping moisture. The Moist variant adds glycerin and hyaluronic acid for additional hydration insurance. The texture is a smooth, slightly watery lotion that lathers lightly but rinses completely. Popular among Japanese women with sensitive or easily-reddened skin who find even gentle cleansers irritating over time.
Daily sun exposure, pollution, and frequent re-washing can leave skin feeling tight and dry — this weak-acid formula cleanses gently without stripping moisture, making it a sound daily face wash for American skin.
Authentic, shipped direct from Japan — delivery in 10–14 business days from order placement (processing and shipping included), free shipping over $99 through October 30, 2026 (regular threshold: $149).