Which factor is crucial for estheticians when choosing products for clients?

Choosing products based on the client's skin type and concerns is fundamental for estheticians. Each individual's skin is unique, with varying characteristics such as oiliness, dryness, sensitivity, and specific conditions like acne, rosacea, or aging signs. By understanding the client's specific skin needs, estheticians can tailor their treatments and product recommendations to ensure optimal results. This personalized approach not only enhances the client's satisfaction but also supports their skincare goals effectively.

Utilizing knowledge of the latest trends in beauty products, while beneficial, should never overshadow the importance of addressing the client's unique needs. Similarly, the popularity of products among peers or the availability of free samples may influence product choices, but they do not guarantee effectiveness for individual clients. Thus, focusing on the client's specific skin type and concerns is the hallmark of professional and responsible esthetics practice.