[Abu-Hafss]

Actually, I am talking about CAPB.

Trial A:
SLES (28%) - 18%
CAPB (35%) - 12%
Very little foam. (Rate 2/10)

Trial B:
SLES (28%) - 20%
CAPB (35%) - 5%
Foam improved. (Rate 5/10)

Trial C:
SCI (85%) - 5%
SL Sarcasinate (30%) - 3%
CAPB (35%) - 30%
Very little foam. (Rate 1/10)

Trial D:
SCI (85%) - 10%
SL Sarcasinate (30%) - 10%
CAPB (35%) - 10%
Rich/High foam. (Rate 10/10)

Glycerin is used only 3-5% to melt GDS 2%.

[Abu-Hafss]

I changed the procedure.
SLSr+SCI+CAPB+2g NaCl+25g Water - Surfactant Phase
Oil + GDS - Emulsifier Phase
Water (remaining) - Water Phase

After the GDS melted and dissolved in Oil, I added the Water phase into it and mixed thoroughly while cooling, to form a thick (syrup like) emulsion.

Next when all the surfactant phase was clear, I cooled it to room temperature. Finally, I added the emulsion into it.

The result is same. Again I had to add 2% Versathix to get my desired viscosity. It seems that previously the viscosity I have been getting was because of the higher percentage of the GDS.

BTW, the GDS I am using is (off white color) in powder form, not flakes. When melting, its smell reminds me of some bakery. 🙂

[Abu-Hafss]

With 1% GDS, the viscosity dropped drastically, almost like water. The opacity also turned to translucent, hence it was bit difficult to observe the pearlescent effect.

I added 1+1% Versathix to restore the viscosity to my desired level, the translucency to opaque. I could notice very faint pearlescent effect.

[Abu-Hafss]

Thank you Sir, for your input.
I am not sure if saponification is the standard procedure of incorporating oil in body wash and/or shampoo formulations.

[Abu-Hafss]

Sure. I’ll try and get back with the results.

In the meantime, will it make any difference if I include about 5% Glycerine? Or replace Oil with Glycerine?

[Abu-Hafss]

I usually put the heated container in tap water (about 25 °C) and stir the mixture gently and slowly until it reaches about 40 °C.

[Abu-Hafss]

Without thickener, the blend has almost water like viscosity which can easily be sprayed with any spray head.

[Abu-Hafss]

Yes, I have tried Xanthan gum and HPMC. They have same results. I sticked to HEC because of ease of processing.
Yes, HEC is added for thickening and for “clinging” on the dashboard surface.
Already have tried different spray heads, same results.