Answers to Your Formulation Questions

Here are the answers to your questions regarding cosmetic formulation:

1. Can BHA be used with PE-1 Aqua?

Based on the product information available, we could not find details specifically about "PE-1 Aqua". Therefore, we cannot confirm its compatibility with BHA (Salicylic Acid). Traditional Salicylic Acid powder requires a solvent to dissolve.

2. Is glycol necessary in a BHA formula?

Whether glycol is necessary depends on the type of BHA (Salicylic Acid) used. Traditional Salicylic Acid powder is not water-soluble and typically requires a solvent like Propylene Glycol or Butylene Glycol to dissolve properly in a formulation. However, some newer forms of Salicylic Acid, such as Liquid Salicylic Acid or ActiveRelease™ Salicylic Acid, are designed to be water-soluble and may not require glycol.

3. Are pH meters still available for sale?

We do not have information on the current availability of pH meters for sale through our product database. Our search found related items like pH Electrode Storage Solution, but no pH meter product itself.

4. Is a preservative necessary?

Yes, a preservative is generally necessary in cosmetic formulations, especially those containing water. Preservatives like NaturePreserve™ LB2, Global Guard™ 221, or Mild Preserved™ COS are crucial for preventing the growth of bacteria, yeast, and mold, which can spoil the product and pose a health risk. Using a suitable preservative ensures the safety and shelf life of your cosmetic product.