Formulating a 70% AHA Gel for Body Exfoliation

Creating a 70% AHA gel for body exfoliation requires careful consideration, especially due to the high concentration of acid which results in a very low pH. The primary challenge is selecting a gelling agent that can effectively thicken the solution and remain stable in such an acidic environment.

Based on available information, some gelling agents are known to perform better in acidic conditions than traditional thickeners. Potential options for creating a gel texture for a high-concentration acid formulation include:

• Aristoflex AVC: This polymer is known for its ability to thicken formulas with a pH as low as 4.0. While 70% AHA will have a much lower pH, it might be a starting point, but compatibility at extremely low pH should be verified.
• Sepimax Zen: Described as a universal polymer, Sepimax Zen can thicken formulations across a wide pH range, potentially offering better stability in highly acidic conditions.

To create the gel, you would typically dissolve the 70% AHA in water first. Then, the chosen gelling agent would be incorporated and dispersed according to its usage instructions. The mixture would need to be neutralized to a safe pH level (typically between 3.0 and 4.0 for exfoliation products, but for a peel, the application time and user's skin tolerance are critical factors) using a neutralizing agent like Sodium Hydroxide solution before application to the skin. Applying a 70% AHA solution with a very low pH directly to the skin without proper neutralization is extremely dangerous and can cause severe chemical burns.

Important Safety Warning: Formulating and using high-concentration AHA peels (like 70%) is an advanced procedure that carries significant risks. Improper formulation, incorrect pH adjustment, or excessive application time can lead to severe skin damage. It is highly recommended to have a thorough understanding of cosmetic chemistry and safety protocols or to consult with a skincare professional before attempting such a formulation. Always perform a patch test before applying to a large area.