HAO Hair Days March 5, 2026 0 Comments

Your location defines your hair's destiny.

Your hair is being attacked by liquid rocks.

After moving to Europe and America, the most devastating moment for many of our Asian friends is not facing an unfamiliar language, but the shocking amount of hair loss from the drain holes when we wash our hair. You think it's stress? Actually, it's more likely that you're in one of the hardest hit areas in the world** with "Hard Water "**.

Hard water is water with a high concentration of calcium and magnesium ions. For thick, coarse Asian hair, these minerals act as a "glue" that locks the hair scales in place, leading to hair breakage and follicle blockage.

Global "Hair Destruction Cities" Opened: Hardness Data Measurements

in the capacity of HAO Hair Days For our editors, we have compiled a list of the top three cities in Asia with the highest density of immigrants and extremely hard water. Please check how "hard" your city is:

City Area Average hardness (ppm) Asian Hair Damage Levels Reader Feedback
London, UK 280 – 380 🚨 Disaster (Extreme) "Your hair looks like steel wire when you wash it, and it snaps when you comb it."
Paris, France 250 – 320 🚨 Severe "Hair color turns yellow for two weeks, and the scalp never gets washed and smelly."
Los Angeles, US 200 – 280 ⚠️ Alert (High) "The roots look like they've never been washed, and the ends are as dry as a broom."

Note: The average water quality in Asia (e.g. Taiwan, Hong Kong) is around 50-100 ppm. values above 150 ppm will begin to show significant damage to Asian hair.

Why are these three cities the "Crematorium of Asian Hair"?

  1. London (chalk geology): The water in London passes through massive limestone formations that are extremely high in calcium. When you wash your hair, these minerals combine with shampoo to form 'soap scum', which seals off your hair follicles.

  2. Paris (limestone basin): The water in Paris has a long history of being "hard". For the skin, this disrupts the acid-alkaline balance, which is why many people traveling to Paris suddenly develop dandruff.

  3. Los Angeles (long distance water source): Most of LA's water comes from the Colorado River, which absorbs a lot of minerals during its long journey. In addition to the strong ultraviolet rays, hard water + sunlight will produce an "oxidizing reaction" that will turn black hair orange-red.

EDITOR'S LOG: What if you live in one of these cities?

We can't change the environment, but we can change the "last mile of water".

>Scale self-check: Take a look at your kettle, if it's thick with white grime after a week, your scalp is going through the same "liming" process.

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