REVITALISING FACIAL TONER
Manufacturing Process
Phase A: Combine all ingredients of phase A.
Phase B: Prepare phase B and slowly add to phase A under stirring. Continue stirring until everything is completely dissolved.
Adjust pH to 5.5 +_ 0.05.
Specification
Appearance: Transparent, clear liquid
pH: 5.5 +_ 0.05
Stability: No separation after centrifugation (4000 rpm, 30 min), stable for 3 months at room temperature and 40 °