Manufacturing Process Phase A: Combine all ingredients of phase A and stir until everything is homogeneous. Phase B: Simply add lukewarm water to the bottle, then add in your powder shampoo. Shake for approximately 30 seconds and wait until everything has been dissolved. Specification Appearance: Pearlescent gel pH: 5.5 +_ 0.10 Stability: Microbiological stability proven, no separation after centrifughas not