Which of the following is a neutralizing agent in chemical peels?

Sodium bicarbonate is considered a neutralizing agent in chemical peels due to its alkaline properties. Chemical peels often involve the application of acidic solutions to exfoliate the skin by removing dead skin cells, improving texture and appearance. Once the desired level of exfoliation is achieved, it's essential to neutralize the acid to stop the peeling process and prevent irritation or damage to the skin. Sodium bicarbonate works effectively because it can raise the pH level of the skin back to a more neutral state, thereby halting the action of the acid and soothing the skin.

In contrast, ethyl alcohol is typically used as a solvent or a disinfectant, not as a neutralizer. Glycerin is primarily a humectant that draws moisture to the skin and does not neutralize acids. Ascorbic acid, also known as vitamin C, is an acid itself and can contribute to the peeling process rather than neutralizing it. Therefore, sodium bicarbonate stands out as the suitable choice for neutralizing agents in chemical peels.