Do You Know Facts About Soap? Myths Busted

Are you aware of the facts about the soap? Almost all the people use soap every single day , yet very few truly understand how it works or how it actually affects your skin. The biggest myth that people believe is if you wash frequently, your skin will be healthier. Based on the scientific studies, this is not necessarily the case.

Soap cleans the body; its primary function is to remove dirt, oils, and potentially dangerous microorganisms. However, if you use soap incorrectly it can also disrupt your skin’s natural balance by removing more oil than necessary and causing dry, irritated skin or possibly causing long-term damage to your skin.

In this blog, we will review soap myths and truths; review the scientific principles that explain how soap functions; and provide you with guidance regarding the proper amount of soap to use depending on your unique skin type.

Myths & Facts About Soap

1. Is Soap Bad for Your Skin?

Myth: Soap can be dangerous to your health and should not be used.

Fact: Soap is not an inherently bad product; there are many kinds of soap and how you use them will determine whether they are helpful or hurtful.

Most traditional soaps have an alkaline (high) pH level, while our skin is slightly acidic. When you use a harsh soap too often, it can upset the balance and cause the skin to become either too dry or irritated.

Reality: When used properly, and when you select the soap based on your skin type, soap can actually benefit you.

2. How Soap Can Dry Your Skin Out

Myth: Soap merely cleans away dirt.

Fact: Soap cleans away both dirt and natural oils.

Surfactants in soap work by breaking down the oils in the skin. While this process makes it easier to remove impurities, it may also remove the skin's natural oils, which serve to moisturize it.

When you use soap too much, the result can be:

• Dry skin

• Tight skin

• Flaky skin

3. Can You Use Soap on Your Face?

Myth: All kinds of soap are fine for the face.

Fact: Facial skin is very much delicate as compared to body skin.

Dermatological studies indicate that facial skin is delicate, therefore for  facial use many regular soaps are too harsh. They often disrupt the skin barrier and worsen issues like acne or sensitivity.

A better choice: Use formulated facial soaps or mild cleansers.

4. Soap for Different Skin Types

Myth: One type of soap works for all types of skin.

Fact:  Each skin type requires a different type of soap formulation.

Clinical dermatological research emphasizes that: 

• Dry skin lacks lipid

• Excess sebum production in oily skin

• Sensitive skin reacts quickly to irritants

So yes, therefore, selection of your soap should be personalized.

5. Overwashing: The Silent Skin Damage

Myth: Excess washing improves skin health.

Fact: over washing usually damages the skin barrier.

Skin Research and Technology published a study which found that frequent washing increases transepidermal water loss (TEWL) - which is a key indicator of barrier damage.

It results in: 

• Increase in dryness

• Skin irritation

• Decrease in protection against microbes

6. Better Cleaning = More Foam

Myth: Better cleansing happens due to more lather.

Fact: effectiveness cannot be measured by foam.

Cosmetic science research indicates that foaming depends on the structure of surfactant- not cleaning ability.

Some of the gentlest cleansers produce little foam.

7. Antibacterial Soap Is Better

Myth: The antibacterial soaps are superior.

Fact: Regular soap is equally effective.

There is no evidence that antibacterial soaps are more effective according to the U.S FDA, than regular soap for everyday use.

Overuse of soap can even contribute to microbial resistance.

8. Natural Soap Is Always Safe

Myth: Skin is not harmed by natural products.

Fact: skin can still be irritated by natural ingredients.

Dermatological studies indicate that essential oils and plant extracts are common causes of allergic reactions.

“Natural” does automatically translate as being “safe”. 

9. Soap Removes All Germs

Myth: Soap removes all germs instantly.

Fact: Primarily, soap removes germs.

Research in microbiology states that soap actually works by lifting microbes and dirt off the skin so they can be washed away.

10. You Must Use Soap Daily

Myth: The entire body requires soap on a daily basis.

Fact: Selective use is sufficient.

Rather than over cleansing the entire body, dermatologists suggest focusing on high-sweat areas.

11. Expensive Soaps Are Always Better

Myth: Higher quality is determined by higher prices.

Fact: Effectiveness does not depend on cost, but formulations.

According to dermatological research on cosmetic science, the effectiveness of soaps is determined by their formulation and ingredients, not by the price they are sold at. An example of this is that many of the most expensive soaps available may not actually improve skin health due to added fragrances, luxury oils, or branding costs.

So, in reality, a well formulated, mild-surfactant soap with moisturizers will perform just as well as any high-end soap.

12. Fragrance-Free Means Chemical-Free

Myth: Chemicals are not used in fragrance-free soaps.

Fact: Everything, including water is made of chemicals.

A product labeled “fragrance-free” means that no further scents have been put into this product. Fragrance has been shown to be one of the leading causes of contact dermatitis according to many dermatological studies, however just removing fragrance does not mean this product is free from chemicals.

Reality: Soaps that do not have added fragrance will work better for individuals who have sensitive skin, however they still have to include some sort of active chemical ingredients to create a cleaning effect.

13. Soap Stops Body Odor Permanently

Myth: Soap can keep body odor control for a long time.

Fact: Soap is only a temporary method of odor control.

Sweat becomes odour when broken down by bacteria; using soap helps remove both odour and bacteria for a limited time (until you produce more sweat!).

The truth is, while soap does help to control odours, it does not have any permanent effect on them!

The Science Behind Soap: How It Works

1. Role of Surfactants

Surfactants found in soap are scientifically effective at lowering surface tension to help bind oil to water.

This process also helps to remove dirt and oil effectively through chemical and dermatological processes.

2. Oil Removal and Skin Barrier

The skin's outer layer, the stratum corneum, provides an important protective function.

Dr. Elias, a scientist who studies the skin barrier, showed that disturbing its function produces dryness, irritation, and heightened responsiveness.

Using too much soap will weaken this system of defense.

3. Importance of pH Balance 

The skin's acid-rate is about 5.5, known as the acid mantle. The acid-rate aids the growth of good bacteria on the skin.

Dermatological literature states:

• The skin's acid-rate has a positive effect on good bacteria.

• An alkaline product may affect the balance of the skin.

To maintain healthy skin function, the pH should also be maintained.

FAQs

1. What type of soaps are suitable for sensitive skin?

Moisturizing soaps that are free of fragrance, pH balanced, and mild are ideal for people with sensitive skin.

2. Can using soap cause acne?

Using harsh soaps can make acne worse by irritating the skin.

3. Should soap be avoided when washing your face?

It is best to use a gentle cleanser rather than regular soap to clean your face.

4. How often should soap be used to wash my body/face?

Face: 1-2 times a day

Body: Once daily is sufficient

5. Does antibacterial soap need to be used to kill germs?

Antibacterial soap is not needed because regular soap kills germs just as well.

6. Is soap or body wash better for my skin?

It can depend on the type of skin - body washes tend to be more hydrating than soap.

Conclusion

So are you aware of soap facts now? The real truth lies somewhere between myths and science.

Research clearly indicates that while soap is essential for hygiene, overuse and wrong choices can harm your skin barrier. A better understanding of soap myths and facts, along with scientific insights, allows you to care  for your skin more effectively and efficiently.

Recommended Products by Blue Nectar:

Mridu Snan Baby Soap with Ghee & Coconut Oil for pH Balance| Tear Free Formula (150 g)

Related Articles:

The Evolution of Soap from Ash to Ayurveda: A Complete History of Soap

The Science Behind Soap: How Does Soap Work on Your Skin?

Guide to Types of Soap

References:

https://pmc.ncbi.nlm.nih.gov/articles/PMC4171909/

https://www.sciencedirect.com/science/article/pii/S2405844024176451

https://www.researchgate.net/publication/8914743_Cleansing_without_compromise_the_impact_of_cleansers_on_the_skin_barrier_and_the_technology_of_mild_cleansing

https://pmc.ncbi.nlm.nih.gov/articles/PMC12419229/

https://pubmed.ncbi.nlm.nih.gov/18199943/

https://www.fda.gov/consumers/consumer-updates/skip-antibacterial-soap-use-plain-soap-and-water