Is underwear soap a waste of money? Let's compare its antibacterial ability, decontamination effect and price

Underwear soap, as the name suggests, is specially made for underwear.

In recent years, in the soap sales area of ​​supermarkets, you can always see various exquisitely packaged lingerie soaps, and the prices are not cheap.

Cleaning underwear is indeed very important, so many people buy underwear soap specifically.

But then everyone will have some questions: Is this thing really better than ordinary soap? Is its antibacterial ability really that strong?

We went to the supermarket and bought 6 lingerie soaps and 2 regular soaps for comparison.

This time, we not only sent the samples to the laboratory to test the pH value and antibacterial effect, but also used sheep blood specially designed for experiments to simulate the situation of real contaminated underwear and made a comparison of the decontamination capabilities.

1. pH value We sent all 8 soaps to the laboratory to test the pH value:

The test results show that whether it is underwear soap or ordinary soap, the pH value is 10.1 or 10.2, which is alkaline.

Among the samples, we found one that was clearly marked on the packaging as a neutral pH formula.

On some platforms, you can see people who recommend this underwear soap using pH test paper to test it, to prove that this soap is weakly acidic and more suitable for washing underwear.

I don't know how they figured it out...

In fact, soaps are all alkaline and cannot be weakly acidic.

When cleaning, just rinse it a few more times.

In this round, lingerie soap and regular soap are tied.

2. Antibacterial effect: Many underwear soaps will focus on promoting the antibacterial and sterilization effects on the product promotion page or in the name, which is also a concern for many girls.

What is the antibacterial effect of underwear soap?

We sent the underwear soaps No. 1, 2, and 3 and the ordinary soaps No. 7 and 8 that were advertised to have antibacterial effects to the laboratory for antibacterial testing. Let's take a look at the comparison:

The results showed that both the underwear soap that claimed to be antibacterial and the ordinary soap showed strong antibacterial properties.

In fact, the main reason why soap can inhibit bacteria is its alkaline characteristic, so whether it is ordinary soap or underwear soap that is not marked with antibacterial function, it can achieve a relatively good antibacterial effect.

It should also be noted that antibacterial means inhibiting bacterial growth, and does not mean sterilization or antibacterial.

Those that claim to have a strong antibacterial effect of 99.9% generally refer to the inhibition of Staphylococcus aureus, Escherichia coli and Candida albicans. It is not known whether they are effective against other bacteria.

It is impossible to inhibit all bacteria.

In this round, underwear soap and ordinary soap are still tied.

3. Cleaning ability In addition to antibacterial properties, people are also concerned about cleaning ability.

Especially during girls' menstrual period, blood stains on underwear are difficult to clean.

We bought laboratory-specific sheep blood and ordinary underwear to simulate the cleaning effect of underwear contaminated with blood stains.

The experimental process is as follows:

After washing and drying the ordinary underwear, blood dripped on the junction of the crotch and the back half.

Wait 24 hours for the blood to completely dry before cleaning. (The blood has been treated with post-color change)

After wetting the soap and underwear, rub and rinse them for one minute respectively, and hang them indoors to dry.

After they were completely dry, we asked 4 cute girls and 8 rough guys to rate which samples they thought were the cleanest.

(They didn't know in advance which ones were lingerie soaps and which ones were regular soaps)

After voting, No. 2 passed everyone's strict scrutiny with unanimous votes and was awarded the title of Cleaning Expert. In addition, the performances of No. 1 and No. 6 were also recognized by most people.

This round, Lingerie Soap wins.

However, the actual cleaning effect of underwear soap is related to personal usage habits, washing time, etc. It still depends on the specific situation. This test is for your reference.

4. The final decisive round of price has come. The effects have been analyzed, but what about the price?

We sent out our financial expert to calculate the price of 100 grams of each soap for your reference and comparison:

The price difference between underwear soaps is already crazy enough. Then look at the price of ordinary soaps, which are really cheap, even cheaper than a fraction of the most expensive No. 2.

Combined with the previous results, I can only say that everyone has a good eye, and they chose the most expensive No. 2 at the first selection, which also shows that it is not expensive in vain. But except for the cleaning effect, there is really no difference in other aspects.

To put it bluntly, it's just a piece of soap. Ordinary soap can already meet the daily needs of most people. Don't be too convinced by the salesperson's words and think that you must buy underwear soap. The specific choice depends on your needs.

Suggestions on soap: 1. On special days, you can try using underwear soap. Some underwear soaps will add enzymes and other substances to help remove dirt;

2. Don’t pursue expensive underwear soaps. Ordinary soaps are also effective. Buy according to your needs.

3. Change your underwear every day. Washing it in time is more conducive to removing stains. Be careful not to use overheated water, which will cause blood stains to solidify and become difficult to clean;

4. Soap is alkaline, so remember to rinse it several times with clean water after use.

Generally speaking, products that promote the concept of group differences are always more expensive.

It is not ruled out that the products of scientific and technological progress will make our lives better, and this requires rational treatment and choice.

Just like the underwear soap this time, the test results show that it is not much different from ordinary soap, it performs better in cleaning blood stains, and the prices vary greatly.

Rather than saying that the function of underwear soap is to clean underwear more cleanly, it is better to say that it helps people develop a habit of "washing underwear separately".

Buy it if you need it, don’t buy it if you don’t need it, there’s no problem.