Phase A: Combine all ingredients of phase A except Cosphaderm® CA natural and
Cosphaderm® LA-T and stir for 10 min at 1500 rpm. Add Cosphaderm® CA natural and raise the pH to 11
to dissolve it completely.
Then add Cosphaderm® LA-T to lower the pH again.
Phase B: Prepare phase B and heat phase A and phase B separately to 75 °C.
Add phase B to phase A under thorough stirring with the propeller stirrer and homogenise the mixture.
Phase C: Add Cosphaderm® Magnolia Extract 98 to phase A+B under stirring and below 40 °C.
Phase D: Prepare phase D and add it to the formulation. Let the mask cool down under moderate
Adjust the pH to 5.5 ± 0.05.
Appearance: Black, creamy paste with small exfoliants
pH: 5.5 ± 0.05
Stability: Microbiological stability proven, no separation after centrifugation (4000 rpm, 30 min)