[Max.C]

Thank you for your suggestion. I can try to see if I can find Ucare Extreme Polymer. If I were to add silicone oil to this formulation, which direction should I take? There are many types of silicone oils. In conditioners, I usually use amino-terminated polydimethylsiloxane and cyclopentasiloxane. Would this combination also be suitable and stable in shampoos?

[Max.C]

I reduced the amounts of EDTA and POLYQUAT-10 to 0.15% and 0.3%, respectively, and followed your method completely to make this shampoo. The result was very stable, with no signs of layering.

During the shampoo-making process, after adding all the surfactants, I incorporated 0.5% Guar Gum. After cooling to 40°C, I added a 2:1 mixture of Polysorbate 20 and fragrance, followed by 0.5% Germall Plus.

Once completely cooled, I used salt to adjust the viscosity.

As for the user experience, the foam and lather during application on the hair showed some improvement, with a 10–20% increase in smoothness. However, the hair texture during rinsing felt slightly weakened due to the reduction in POLYQUAT-10. For normal hair, this was sufficient, but it seemed a bit lacking for damaged, chemically treated hair. Do you have any suggestions to enhance the wet combing performance in this regard?

I haven’t delved deeply into the preservative system yet, so I’d love to hear your advice on this.

Thank you for your suggestions!

[Max.C]

Thank you for the reply Abdullah, it’s a very good point. I will ask for other quat 10 to test.

[Max.C]

Thank you for sharing your experience with us, i’m going to make one~