Using Pro Polymer as a Thickener in BHA Gel Formulation

Subject: BHA and Gel Formulation

Regarding your question about using Pro polymer as a thickener for a BHA gel formulation, substituting Xanthan Gum or organic thickeners:

Yes, Pro polymer can indeed be used as a thickener for BHA gel formulations. As confirmed by the reply you received, it is a suitable option.

When formulating with BHA (Salicylic Acid), it's important to remember that it is an acid and requires a low pH (typically around 3-4) to be effective. Therefore, the thickener you choose must be stable and maintain its thickening properties in this acidic environment.

• Pro polymer: Many types of synthetic polymer thickeners, often referred to generically as "Pro polymer" or similar trade names (e.g., Carbomers, Acrylates Copolymers), are designed to be stable and effective across a wide pH range, including the acidic conditions needed for BHA.
• Xanthan Gum: This is a polysaccharide gum that is also known for its good stability in acidic conditions, making it a common and effective choice for BHA formulations.
• Organic thickeners: This is a broad category. Some organic thickeners (like Xanthan Gum) are suitable for low pH, while others may not be. It depends on the specific type of organic thickener.

In summary, Pro polymer is a viable alternative thickener for your BHA gel formulation, compatible with the required acidic pH.