Review my handwash formula

I have made  a handwash in better way after some failure at some different steps.
The ingredients are:
Water 250ml
Sles 100ml
Glycerin 2ml
CAPB 20ML
AOS 10 ML
CDEA 10ML
SALT 10MG
Fragrance oil
Colour 

Result product  was good, viscosity, foaming, moisture everything is good. 
I want to know your views upon it.
,please tell me what is lacking? 
Preservative? Why we need to preservative because these all are chemicals,? If we need then,  Is phenoxyethanol at 1%  good?
Do we need to CMEA for getting viscosity rather then NaCl? As previous attempts the viscosity reduced after adding fragrance oil and colour, why?
Need your suggestions 🙏
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Comments

  • toketsutoketsu Member
    Disclaimer: I am not a chemist, just DIY enthusiast.

    Preservative? 
    Hi! Yes, you should have a broad-spectrum preservative in products which contain (or will be interacting with) water, because water is a source of life and a good ground for bacteria and mold.
    Why we need to preservative because these all are chemicals?
    Even more - everything in our life is chemicals. Why? Because bacteria and mold are so stubborn, so they can live and growth in almost any cosmetic product.
    Is phenoxyethanol at 1%  good?
    Again, I am not a chemist, but I think just phenoxyethanol is not enough, since most of commercial products tend to not use it solely. Also, preservative choice depends on many factors - how long shelf life should be? should it be "organic" or "natural"? What is pH of your product? etc.
      


  • toketsu said:
    Disclaimer: I am not a chemist, just DIY enthusiast.

    Preservative? 
    Hi! Yes, you should have a broad-spectrum preservative in products which contain (or will be interacting with) water, because water is a source of life and a good ground for bacteria and mold.
    Why we need to preservative because these all are chemicals?
    Even more - everything in our life is chemicals. Why? Because bacteria and mold are so stubborn, so they can live and growth in almost any cosmetic product.
    Is phenoxyethanol at 1%  good?
    Again, I am not a chemist, but I think just phenoxyethanol is not enough, since most of commercial products tend to not use it solely. Also, preservative choice depends on many factors - how long shelf life should be? should it be "organic" or "natural"? What is pH of your product? etc.
      


    Informative!  Thanks. 
    I want to know some broad spectrum preservative that can be used in any wash and cosmetic products.
    I think you are saying a kind if combo of different preservative of particular purpose. 
    If anyone can share your knowledge, please..
  • AbdullahAbdullah Member
    DMDM hydantoin and CMI MI is good for cleaning products
  • Abdullah said:
    DMDM hydantoin and CMI MI is good for cleaning products
    Ok, should we use both in combination or alone is sufficient. What is recommended % in product? 
  • PhilGeisPhilGeis Member, Professional formulator
    Suggest one of Abdullah's suggestions with EDTA and benzoate.
  • PhilGeis said:
    Suggest one of Abdullah's suggestions with EDTA and benzoate.
    Thanks a lot for sharing knowledge! 
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