Cosmetics Formulation Development

Ensulizole ( Phenylbenzimidazole Sulfonic Acid )

When Ensulizole is completely dissolved, will it be clear and colorless?

Because before adding Ensulizole, the pH was at 6.9 and when added, it would decrease to approximately 4, causing the solution to be cloudy white with sediment.

And when the pH is adjusted back to 6.8-6.9 (not continuously stirring), it will become clear and colorless.

Is that correct?

P.S. Adjust it to base with Sodium Bicarbonate.

hello

That's correct. The pH must be adjusted within this range. In order to dissolve completely

Yes, it must be clearly dissolved. There is no sediment left. color of solution There may be a little color. That's okay. It's normal.