How to thicken liquid soap base

When you DIY your homemade liquid soap, you can control the thickness by adding simple ingredients call HEC – Hydroxyethyl cellulose.  Hydroxyethyl Cellulose (HEC) is a natural gum derived from pine and spruce tree trunks. It is a non-ionic, water soluble thickening agent for water based cosmetic and personal care products. Hydroxyethyl Cellulose will also help enhance the foaming action of surfactants.


This allows you to use less surfactant, making your shampoos and cleansers more gentle and more effective. Our Hydroxyethyl Cellulose (HEC) can be used to efficiently thicken shampoos, body washes and shower gels.It can thicken your liquid soap depends on how much HEC you add into the soap, the more you mix, the soap is thicker.



After learning what is HEC, now let’s try to do a thick soap base follow the recipe in ours video!


  1. If I make 500ml of liquid soap need how many gram of HEC to thicken the solution.

    1. hai there, for Thickener 1.0%-3.0%. thank you πŸ™‚

    2. For soap you need to experiment a bit, however it says (on product information/ formulation directions) to use between 0.5% – 3Ωͺ depending on what you are formulating. You can find good method of how to use here :

      1. hi ok noted. thank you for your information πŸ™‚

  2. Thanx for the useful and authentic information you have share with this article
    it will be surely beneficial for everyone.

    1. sure, welcome

    1. thank you πŸ™‚

  3. Thank you very much. Very helpful.

    1. ok sure. welcome πŸ™‚

    2. Morning, if i make 20 litres of dishwashing liquid, how much can i use HEC can i use

      1. hi morning. ratio for hec is 1-3%. so for 20liter x 0.03 = 600g. πŸ™‚

  4. Hello
    I have made laundry detergent shampoo but after few days it separate. Could tell me please what should I do?

    1. hello there,
      because you mix with water and oil. that’s y it separate. you need use mixing agent for oil and water. you can use emulsifier france for mixing agent πŸ™‚

  5. Dear Miss Sarah,
    For HEC, should this chemical be used in the early stages or after adding other chemicals first and hec at last stage?

    1. hi dear.
      our HEC is not chemical. its natural products. for usage this HEC you can mix with warm water first and can mix it the last stage dear. and then wait for 24hours πŸ™‚

  6. I am looking to thicken and increase the foaming characteristics of carwash soap for use in a soap canon , will adding this give me the results I am after? Also to your knowledge will it harm the finish of the car?

    1. hi there,
      our thickener we use for cosmetics purpose. our thickener 100% from plant based. so it’s not give any harm πŸ™‚

  7. How much gram HEC tobe taken in warm water. Also inform how much warm water AND LAST AFTER 24HRS. THIS GEL TO BE ADDED IN HOW MUCH LIQUID SOAP.

    1. hi there. ratio for HEC is 3%. so for 1liter liquid soap base use 30g. for warm water you can used it as long a the HEC can dissolve well. but no need to put much πŸ™‚

  8. Hi! Can I use HEC to thicken shampoo made with anionic surfactants? (SLES)

    1. hi there, yes you can use HEC to thick your shampoo πŸ™‚

  9. How much should I put in 400ml liquid soap in grams? Thanks

    1. hi there. 400ml x 0.03 =12g . ratio usage 3% πŸ™‚

  10. I find it difficult to viscose my liquid soap base with a modified hydroxyethyl cellulose (Hydrophobical modified hydroxyethylcellulose)
    I used the same principle (1% HEC), viscosity: 300 cp at 20 Β° C
    Soap composition (20% dry matter): 55% olive oil and 45% copra
    I need your help

    1. hi there you can use it 1% to 3%. you need dilute warm water first and the mix with your liquid soap base πŸ™‚

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    When you’re examining hair loss, damaged hair, preventing scalp disorders, hair growth, hair care in general, very similar rules come to mind.

    Generally, you should try to stay away from hair treatments and products that contain chemicals like parabens, DEA or sulfates.

    What is good for your hair is good for your skin also.

    Obviously your content on this page hits the nail in the head for various reasons. It avoids the accustomed traps and traps so many fall into: utilizing horrible alternatives. Keep it up!

    1. thank you πŸ™‚

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