KEIKO Beauty Column 1-12. Maintaining residental bacteria

KEIKO Beauty column by Keiko Iwanaga, a beautician with over 40 years of experience. Collaboration with Dr.Oike opens a new frontier of beauty.



1-12. Maintaining residental bacteria (日本語はこちら


We’re taking a bath every day.

This means that we wash our bodies.
However, at that time, washing away the indigenous bacteria that are our “protectors”.

In fact, when we take a bath and wash our body, we lose more than half of our redidental bacteria.

They can even be nearly wiped out when synthetic surfactants with strong cleaning power are used.

Our body is made with proteins, but it is said that synthetic detergents cause protein denaturation and destroy cells.


It is also highly persistent, entering the liver, spleen, lungs, and brain and developing into a dreaded problem where it is almost never excreted.


In pubric commercial, these advertise that we should clean our hands with soap for sterilization and disinfection, but the residental bacteria can be dameged by the act.

The FDA has banned the sale of soaps and other products containing 19 different disinfectants, warning that they could adversely affect immunity.

Furthermore, there is no difference in the sterilizing effect when comparing disinfectant soap with ordinary soap.

We are confused such the bad facts for our health and no effect…

I’ve been very curious about cleansers for full-body in this 40 years.

This is because the detergent that we use every day is very important issue for the maintenance of our guardians (bacteria).

The key to choosing a cleaning agent is the cleaning ingredients that the bacteria can accept safely.


While we advocate disinfecting our hands as a countermeasure to the coronavirus, it is also true that when we prioritize preventing infection, we are doing damage to our “guardians”, the residental bacteria.

According to the FDA, it is better to clean thoroughly with ordinaly soap that does not damage the redidental bacteria.

It is advisable to take sanitization moderately and focus on improving your own immunity and building a body that does not succumb to viruses.




Rough skin due to the effects of synthetic detergents

Synthetic detergent has high toxicity, high penetration, and high residue, and it breaks the “skin barrier” that protects from harmful substances, penetrates into the body, enters the blood, and is carried throughout the body.
It is said to be a cause of skin problems such as rough skin, atopy, rash, liver damage, and carcinogenicity.




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