Soap for body and hair
Soap for body and hair
Soap does not kill germs on our hands, it removes them . Bacteria stick to the oil and fat on our hands. Water alone won't remove many of the germs on our hands because water and oil don't like each other, so they won't mix. But soap loves both water and oil. That's because soap molecules are some kind of surfactant, meaning they have a water-loving, or hydrophilic, end that is oil-loving, or hydrophobic.
When you wash your hands with soap, the soap molecules act as a mediator between the water and oil molecules, binding them both at the same time . If you then rinse everything off, the soap carries the germs with the water.
For the most effective hand wash, use soap and be thorough. Foaming as the friction helps to remove dirt and oils from your skin. How long you have to exfoliate depends on how dirty your hands are, but most health authorities recommend a minimum of 20 seconds .
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Soap for body and hair
Soap does not kill germs on our hands, it removes them . Bacteria stick to the oil and fat on our hands. Water alone won't remove many of the germs on our hands because water and oil don't like each other, so they won't mix. But soap loves both water and oil. That's because soap molecules are some kind of surfactant, meaning they have a water-loving, or hydrophilic, end that is oil-loving, or hydrophobic.
When you wash your hands with soap, the soap molecules act as a mediator between the water and oil molecules, binding them both at the same time . If you then rinse everything off, the soap carries the germs with the water.
For the most effective hand wash, use soap and be thorough. Foaming as the friction helps to remove dirt and oils from your skin. How long you have to exfoliate depends on how dirty your hands are, but most health authorities recommend a minimum of 20 seconds .
...Read more
Soap for body and hair
Soap does not kill germs on our hands, it removes them . Bacteria stick to the oil and fat on our hands. Water alone won't remove many of the germs on our hands because water and oil don't like each other, so they won't mix. But soap loves both water and oil. That's because soap molecules are some kind of surfactant, meaning they have a water-loving, or hydrophilic, end that is oil-loving, or hydrophobic.
When you wash your hands with soap, the soap molecules act as a mediator between the water and oil molecules, binding them both at the same time . If you then rinse everything off, the soap carries the germs with the water.
For the most effective hand wash, use soap and be thorough. Foaming as the friction helps to remove dirt and oils from your skin. How long you have to exfoliate depends on how dirty your hands are, but most health authorities recommend a minimum of 20 seconds .
