MANUFACTURING PROCESS Phase A: Combine all ingredients and stir until everything is completely dissolved. Phase B: Dissolve the menthol in Cosphaderm® Propanediol natural add phase B to phase A under soft stirring. Phase C: Add all ingredients of phase C and stir until everything is completely dissolved. Adjust the pH to 7.0 +_ 0.05. SPECIFICATION Appearance: transparent liquid pH: 7.0 +_ 0.05 Stabhas not