Last updated: August 10, 2021

Our method

23Products analysed

29Hours spent

21Evaluated articles

78User reviews

Welcome to our big pH-neutral soap test 2021. Here we present all the pH-neutral soaps we have tested in detail. We have compiled detailed background information and added a summary of customer reviews on the web.

With this, we would like to make your purchase decision easier and help you find the best pH-neutral soap for you.

You will also find answers to frequently asked questions in our guide. If available, we also offer interesting test videos. Furthermore, you will also find some important information on this page that you should definitely pay attention to if you want to buy a pH-neutral soap.




The most important facts

  • pH neutral actually means slightly acidic, and has a pH similar to our skin
  • pH neutral soaps do not damage the protective mechanism of our skin
  • pH neutral soap has many uses, for example it can be used to clean tattoos or to help fight pimples

The Best pH Neutral Soap: Our Picks

Guide: Questions you should ask yourself before buying a pH-neutral soap

What is pH neutral soap?

It's hard to imagine life without soap these days. It sits next to our sink and is almost automatically used.

Nowadays, soaps come in many variations and colours. (Image source: Unsplashed.com / Heather Ford)

We wouldn't miss it until it was gone. But what is a pH-neutral soap?

first and foremost, pH neutral doesn't mean a soap with a neutral pH like water has.

pH-neutral soap is soap that has the same, slightly acidic pH value as our skin. The skin has a pH value between 4 and 5.5.

Normal soaps, unlike pH-neutral soaps, are strongly alkaline with a pH of 9. They are therefore far removed from the natural pH of your skin.

Again, as a reminder:

pH solution
0-6 acidic
7 neutral
7-14 alkaline

Why use a pH neutral soap?

The function of pH-neutral soap is to ensure that your skin's natural ph-value changes as little as possible. This is to maintain the protective function of the skin.

The skin has a protective acid mantle, which is a thin film of water and fat. It consists of sebum, sweat and horny cells.

This protective acid mantle prevents foreign substances from entering and fluid from being lost from the inside of the body.

However, keeping the skin at the same acid level is harder than you think. Many daily activities influence the acidity level of the skin, such as diets etc.

When the skin comes into contact with alkaline products, the protective mantle is damaged and skin problems are not an atypical consequence.

When can a pH-neutral soap be used?

There is actually nothing to prevent the use of a pH-neutral soap, in many cases it is even recommended.

For example, skin blemishes often come from the use of alkaline care products. In these cases, the use of a pH-neutral soap would be advantageous.

Today, soap is associated with washing hands; before the invention of shower gels, detergents, etc., soap was the only cleansing product. (Image source: Unsplash.com / Jennifer Bruke)

The pH-neutral soap can also be used for dry skin. Because this can also be a sign that the care products used were too alkaline and thus damaged the protective layer of the skin.

Whether you can use pH-neutral soap on a tattoo is out of the question. In this case, pH-neutral soap is even recommended.

The skin has already been damaged by the tattoo, so it is advisable to use a pH-neutral soap to accelerate the healing process and not to prolong it unnecessarily.

In general, it is up to you whether you buy a pH-neutral soap with or without perfume or fragrance. It is also important to consider possible allergic reactions due to the fragrances.

How much does a pH-neutral soap cost?

The price of a pH-neutral soap depends on the product. You can buy a cheaper product for just a few euros. But there are also soaps that cost around €30.

The price difference lies in the quantity of the product. Secondly, the products of well-known brands such as Nivea are comparatively cheaper than other products.

With cheaper products, it is also possible that the fats used are animal and not vegetable. This should be taken into account when buying.

More expensive products, on the other hand, often advertise their ingredients and quality labels such as organic. Here it is important to find the most appealing product for you when buying, also in terms of taste.

What alternatives are there?

Alternatives to pH-neutral soap are all body washes and care products. These include classic soaps, natural soaps or shower gels.

Another alternative to purchased products is to make soaps yourself. You can buy all the products you need for this in drugstores and pharmacies. To make your own soap, you will need:

Content type effect
Fats vegetable or animal fats are the basis and have this refatting effect which makes the skin supple
Lyes sodium, potassium or similar draw out the salt and ensure that a solid mass is formed

Afterwards, the soap can be designed as desired. You can find a lot of recipes and variations on the internet.

You are sure to find the perfect soap for everyone. There are also other recipes with different bases, but the ones presented here are the most common.

You can find out whether your soap is pH-neutral with this simple test.

You moisten your soap until it foams, take a pH-value test strip (available in every drugstore) on which you apply some soap foam. Now you have to wait until the strip changes colour and compare the colour with the colour scale.

Decision: What types of pH-neutral soaps are there and which one is right for you?

If you want to buy a pH neutral soap, there are two alternatives you can choose between:

  • Liquid soap
  • Hard soap

Liquid soaps are usually in a bottle, while hard soaps are the soap blocks.

Which of the soaps you choose is ultimately up to you. You may already have certain preferences, otherwise we will briefly present the advantages and disadvantages of each type of soap.

What are the advantages and disadvantages of liquid pH-neutral soap?

Apart from the name, liquid soap is not really soap. Unlike bar soap, it consists of syndets (synthetic detergents). These are substances in the water that facilitate cleaning.

Their main advantages are that they are often pH-neutral and do not breed bacteria. Liquid soaps do not allow as many bacteria to accumulate as might be the case on a bar of soap.

However, due to their ingredients, which are often chemical, liquid soaps are often not lipid-replenishing and therefore dry out the skin in many cases. In addition, the packaging is usually made of plastic, which is not environmentally friendly.

For a better overview, we would like to show you all the advantages and disadvantages again:

Advantages
  • often pH-neutral
  • less bacteria transfer
  • suitable for community use
Disadvantages
  • rarely regreasing substance Basis here is often the fossil raw material petroleum
  • contains chemical substances
  • environmentally unfriendly due to the many plastics

What distinguishes a bar of pH-neutral soap and what are its advantages and disadvantages?

A big plus for the bar of soap is its refatting effect and the ingredients. These are mostly natural and without preservatives.

In addition, this type of soap is more environmentally friendly as fewer preservatives are used, they have a longer shelf life in terms of usage time and often do not require plastic packaging.

However, there are also disadvantages: these soaps are often more alkaline and, depending on the intended use, their use can be unhygienic. For example, if several people use the same soap, as can be the case in public baths.

We would like to list all the advantages and disadvantages here again:

Advantages
  • moisturising effect
  • softening function of the skin and thus better absorption and storage capacity of water
  • often due to natural additives such as lavender, rose or sage
  • longer shelf life
  • usually without plastic packaging
Disadvantages
  • often rather alkaline
  • bacterial collection place if several people use the same soap
  • single use preferred

Buying criteria: You can use these factors to compare and evaluate pH-neutral soaps

In the following, we would like to show you which factors you can use to compare and evaluate pH-neutral soaps. This will make it easier for you to decide whether a particular soap is suitable for you or not.

In summary, these are:

  • Quantity
  • Ingredients
  • Natural cosmetics
  • Perfume

Quantity

100g soap or rather 500ml? Depending on the type of soap, there are also different quantities.

There is no better or worse, just what do you need? If you like to take your soap with you when you travel, then you will tend to take a smaller one.

On the other hand, if you buy it for home and you have a family of four who all use the same soap, you will probably buy a larger one.

Care should be taken, however, because often smaller soaps can be more expensive than their "big" siblings. The price per 100g/100ml can be used as a comparison.

Nourishing and moisturising substances

The caring substances of a soap are its fats, i.e. the oils used. There are many different types of oils. Depending on personal disposition, some oils and fats can cause unpleasant skin reactions such as itching or redness.

If you have an allergy, you should always pay attention to the ingredients when buying soap in order to avoid such negative effects.

Each oil or fat has its own special properties. Hazelnut oil, for example, is considered very skin caring for both oily and sensitive skin. Cocoa butter, on the other hand, is very oily and therefore good for stressed but not oily skin.

To find the oil or fat that is best for you and your skin type, you can inform yourself on the internet or perhaps ask in pharmacies. In most cases, the appropriate use is also indicated on the packaging.

Natural cosmetics

Like any other product, soap contains different ingredients. One of the basic ingredients of soap is fat, but there are many different types of fat, all of which can be used to make soap.

A natural cosmetic product is often labelled "organic" and actually means that the soap is almost completely biodegradable.

To give you an example, some soaps are made from palm oil. Palm oil is not harmful in its use, but huge areas of rainforests are destroyed to obtain the "liquid" gold.

Perfume

Who doesn't like to smell like flowers, honey or something similar after washing up?

Soaps are available with different fragrances. From strongly feminine to natural to neutral fragrances, you can find it all. With a little more searching, you can find your favourite scent here.

The soap industry, like the perfume industry, uses different essences to give the soap a unique scent. (Image source: Unsplash.com / Christin Hume)

Depending on the intended use, soaps with more or less perfume are suitable. For example, if you want to wash off the sweat after sports and be "fresh" again, then a soap with a stronger scent is certainly suitable.

But tastes are different. Just go to a store or look online to see what's available. But beware, fragrances are often the cause of allergies, so be careful depending on your personal disposition.

Facts worth knowing about pH-neutral soap

Do you always have to use pH-neutral soaps?

There is no explicit must, but it would be advisable. This soap is the only one that has the same pH value as our skin. In order not to stress it unnecessarily and to maintain the protective mechanism, it would be advisable to use a pH-neutral soap.

But we do not want to commit you here. Finally, it is up to you which soap you would like to use. We will only show you the advantages and disadvantages.

Does a pH-neutral soap help with pimples?

Basically, yes. Because pimples often appear due to the damaged protective mechanism of the skin.

But not every pH-neutral soap helps against pimples. Here again, it is important to consider which oils and fats were used in the production process. In general, soaps that are very rich in fats should be avoided if you have pimples.

Are pH-neutral soaps vegan?

No, not all soaps are vegan. All fats can be used in the production of soap and therefore also those from animals.

If you live a vegan lifestyle, you should make sure you know which fats are used to make the soap.

Picture: 123rf.com / belchonock

Reviews