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Making the Right Choice

Compare Top Shower Filters: Find the Best for Y...

April 27, 2025

Choosing the right shower water filter can significantly improve your skin and hair health by removing contaminants like chlorine and heavy metals. This comparison highlights top models, including the Nordisk...

Compare Top Shower Filters: Find the Best for Y...

April 27, 2025

**Offer available for new subscribers only.

Disclaimer: This shower filter is designed to reduce impurities in shower water but is not a medical device. It does not remove microbiological contaminants and is not intended for drinking water purification. Follow recommended usage and replace the filter at the suggested intervals for optimal performance. If you have specific skin concerns or medical conditions that could be affected by water quality, consult a healthcare professional before use. Not suitable for ingestion or use outside of shower applications.

Understanding the Science Behind Hard Water's Impact

Hard Water and Eczema Risk:

Children in elementary/primary school exposed to hard water may experience a 43% increased risk of eczema.

A meta-analysis showed increased odds of atopic eczema in children exposed to harder water.

Living in a hard water area is associated with an increased risk of atopic dermatitis (AD).

One study noted a statistically significant increased risk of atopic eczema in primary school-aged children exposed to hard water (OR 1.43; 95% CI 1.09, 1.87).

Hard water may contribute to the development of atopic eczema in early life.

Hard Water, Skin Barrier Function, and TEWL:

People with eczema and a specific gene mutation (FLG) experience almost double the skin dryness after washing with harsh soaps in hard water.

Atopic Dermatitis (AD) patients with a filaggrin (FLG) mutation showed a 94% greater increase in TEWL after being washed with sodium lauryl sulfate (SLS) in hard water.

Hard water can reduce skin barrier function, regardless of chlorine levels.

The increase in TEWL correlates with the amount of SLS deposited on the skin.

Water softening mitigates the negative effect of hard water on skin barrier function.

Hard Water and Surfactant Deposition:

Hard water can cause almost three times as much soap (SLS) to stick to your skin.

Hard water is associated with 2.8 ± 0.6-fold greater SLS deposition on the skin compared to deionized water.

High calcium levels in hard water reduce the solubility of surfactants, increasing their deposition on the skin.

Hard water increases skin exposure to harmful surfactants.

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Making the Right Choice

Compare Top Shower Filters: Find the Best for Y...

Compare Top Shower Filters: Find the Best for Y...

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Understanding the Science Behind Hard Water's Impact

Hard Water and Eczema Risk:

Hard Water, Skin Barrier Function, and TEWL:

Hard Water and Surfactant Deposition: