When treating a client with sensitive skin, which product should be approached with caution?

When treating a client with sensitive skin, a Vitamin A Corrective Serum should be approached with caution because Vitamin A and its derivatives, such as retinoids, can be quite potent and may cause irritation or exacerbation of sensitivity in some individuals. Sensitive skin types often require gentle ingredients to avoid adverse reactions, and strong actives like Vitamin A can lead to redness, peeling, or discomfort, which can be particularly problematic.

In contrast, while salicylic acid, glycolic acid at a low concentration, and mandelic serum may also cause irritation, they are generally considered to be more suitable for sensitive skin when used correctly. Salicylic acid can help with acne without causing as much irritation, glycolic acid at a low percentage provides gentle exfoliation, and mandelic acid is known for being milder due to its larger molecular structure, which leads to a slower penetration and less irritation compared to other acids. Therefore, the Vitamin A Corrective Serum stands out as needing more caution in a sensitive skincare regimen.