What potential side effect can result from using glycolic acid while taking aspirin?

Using glycolic acid alongside aspirin can lead to a heightened risk of bleeding. Aspirin is a nonsteroidal anti-inflammatory drug (NSAID) that works by inhibiting platelet aggregation and can reduce the blood's ability to clot. Glycolic acid, known for its exfoliating properties, can cause skin irritation or sensitivity in some individuals. When combined, the irritative effects of glycolic acid may lead to increased chances of bruising or bleeding, especially in sensitive areas or with inappropriate application. Therefore, understanding this interaction is crucial for maintaining client safety and ensuring that any potential side effects are monitored closely.

The other potential side effects listed do not directly involve the simultaneous use of glycolic acid and aspirin in the same way. Increased sun sensitivity can result from glycolic acid use but is not a direct interaction with aspirin. Severe rash could occur from either substance but lacks a specific link to their combination. Increased hydration is not a side effect associated with this pairing; rather, glycolic acid can lead to dehydration of the skin if not properly managed. Thus, the heightened risk of bleeding stands out as the most relevant concern when both are used together.