Soap free shampoo and conditioner: Why is pH balance the key to healthy hair?

So, soap free shampoo is better for my hair? Yes, you read that right.

Has your hair ever felt dry and tangled after using a shampoo bar? The pH and the soap in your shampoo bar is probably the reason.

KIND2’s soap free solid shampoo bars and conditioner bars have a pH level that is ideal for hydrated and healthy hair. Our bars are concentrated and not 80% water like traditional bottles of shampoo and conditioner.  

If you care about the well-being of your skin, scalp and mane then read on to learn how KIND2 can help them thrive.

What is soap free shampoo?

First things first, what does ‘soap free shampoo’ actually mean? Don’t you have to use soap to get your hair clean?

Just to be clear...we have nothing against soap! It’s an excellent, plastic free product that is effective for cleaning your clothes, your dishes and even your body. However, it can wreak havoc on your hair.

Many solid shampoo bars on the market today are actually soaps in disguise. Sometimes they are called natural shampoo bars and there may be no mention of soap on their packaging, or on the company website, but don’t be fooled. If you see any of the following substances in the ingredients list, you’re actually using a soap bar:

  • Sodium Cocoate
  • Sodium Olivate
  • Sodium Castorate
  • Sodium Hydroxide

KIND2 shampoo bars and conditioner bars are totally soap free, meaning that they contain plant-based cleansing ingredients and actives combined with nourishing oils. Not only will our bars get your barnet completely clean, but they will make a far healthier addition to your hair care routine.

Do you have sensitive skin? Or are you prone to a dry, flaky and itchy scalp? Soap is likely to exacerbate these issues. The gentle, cleansing ingredients in this fragrance free, ‘Sensitive’ solid shampoo bar will soothe your symptoms.

Why is soap bad for your hair’s pH?

So, how does soap affect the pH of your hair? And why does this matter?

It’s all about chemistry really. Have you ever noticed ‘pH balanced’ written on the side of a skincare product? You might not have given it much thought before, but you could have suffered the soapy consequences of using a solid shampoo bar.

Have you ever washed your hair, only to find that it feels dry, sticky and strange afterwards? The pH of your soap-based shampoo bar is probably to blame.

Soap sits at the higher end of the pH scale, around the 9 - 10 mark. This makes it alkaline. Our skin, on the other hand, splashes around at the shallower end. It is usually in the 4.75 - 5.5 pH range, meaning it’s slightly acidic.

Soap-based shampoo bars are out of balance with the natural pH of your hair. It’s harsh and unhealthy for it and can strip away essential natural oils to leave it feeling dull and rough.

This is why it’s so important to see through the suds. Soapy shampoo bars might look luxurious or be environmentally friendly in certain respects. Don’t let the fact that they’re zero waste, vegan, described as natural or claim to work up a lovely lather get into your eyes and obscure your judgement.

KIND2’s solid shampoo bars come with all the plant-based, plastic free perks. They get your locks feeling lusher, clean them properly and keep your head healthy. Most importantly, they do all this without the soapy damage.

How do high pH and hard water hurt your hair?

Do you live in an area that has hard water? Or have you ever taken a trip, washed your hair and been surprised by how different it feels?

Hard water has a high pH. This exacerbates the soap-based bar problem. Soap’s alkalinity combined with the alkaline water can leave your tresses tangled and waxier than ever.

The pH balance of KIND2 shampoo and conditioner bars means that they clean and nourish your hair and head, regardless of how hard or soft the water is.

Are you still a little daunted by or sceptical about solid shampoo bars? Read up on how to use shampoo bars for the best results. It’s so simple and effective that you’ll never go back to the bottle.

Do I need to use vinegar to wash and re-balance my hair?

There’s a lot of hype around the ‘no-poo’ movement, and the benefits of using shampoo alternatives like vinegar. You might have even given it a go and experienced some temporary results, or you might have been told you need to use it during the “transition period”. 

Still, there’s good cause to keep the Apple Cider in your salad dressing.

The theory is that vinegar will help to re-balance the pH of your hair and smooth its cuticles. You might have also been drawn to the method as a means of avoiding products that contain:

  • Plastics
  • Silicones
  • Sulphates
  • Parabens
  • Animal products

KIND2’s solid, soap free shampoo and conditioner is 100% free from these ingredients. There’s no transition period and what’s more, it will perform the rebalancing act in a much sweeter smelling, more successful way.

Why is KIND2’s soap free shampoo better for my hair?

What makes KIND2 solid shampoo and conditioner so much better is that, instead of soap, we use gentle, plant-based surfactants (cleaning agents) and oils. These natural, pH balanced products will keep your hair clean, hydrated and healthy.

So, if you don’t fancy suffering any more waxy, tangled hair struggles, ditch the vinegar and head to the KIND2 shop.

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★ Reviews

Customer Reviews

340 reviews
Great Conditioner!

I love this bar! It leaves my hair tangle free and so soft! I was super impressed the first time I used this as I thought it wouldn't do much for my thick hair, but I was wrong it really is a fab conditioner and you don't need much at all. Hence the bar seems to go on forever, great value for money!

Great for Itchy Scalp!

I was always a bit sceptical about shampoo bars but once I tried Kind2 I'm sceptical no more! I have an itchy scalp which gets irritated very easily so I have to be careful what I use. The Sensitive one is very gentle and perfume free so it doesn't upset my scalp and the bar lasts for ages! Added bonus is that because it doesn't contain any nasties it doesn't strip coloured hair either. It leaves hair soft and shiny to the point where my neighbour commented how shiny my hair was the other day and seeing as I haven't been to the hairdresser since December that's pretty impressive!

Simply just the best shampoo bar on the market!

This is my third purchase of this shampoo bar - and I totally LOVE IT! I have long, think hair and have struggled to find "the one" that works for me. And now I have. It makes my hair feel so much more healthier. As I struggle with a very sensitive scalp the natural ingredients make a real difference, sulphate free is the way to go. Am sure you can tell, this shampoo bar comes highly recommended from me :-)


I just love this company, their commitment to the planet and to people. I am adjusting to the shampoo. I cannot get any lather. The conditioner, it feels like I haven't done anything. But, my hair looks and feels great afterwards. So I'm sticking with it

Love it!

To be fair, I have only used the shampoo and conditioner bars a few times. I can already see a feel a difference. My hair has become a bit thin on top and I’m now having to deal with it frizzing terribly. Since using these bars, I have had no frizzing and my hair feels thicker. Now I know that it hasn’t miraculously thickened but it looks and feels that way. I’m hoping that with regular use, my hair will start growing again where there are thin patches, but time will tell. I am really happy with these bars and will continue to buy them. Don’t expect lather because there isn’t any, but my hair feels cleaner than when I’ve used regular shampoo. Love it!