What should be the focus when ensuring the effectiveness of cleaning solutions?

The focus on concentration level when ensuring the effectiveness of cleaning solutions is crucial because it directly impacts the solution's ability to remove dirt, debris, and contaminants. A cleaning solution with an appropriate concentration level has the right balance of active ingredients needed to effectively break down and eliminate unwanted materials. If the concentration is too low, the solution may not perform adequately, leaving residue and compromising hygiene standards, especially in settings like lash application where sanitation is paramount.

On the other hand, while fragrance, color, and packaging design can enhance the user experience or marketing appeal, they do not significantly affect the cleaning efficacy of the solution. An appealing scent may make a product more pleasant to use but does not contribute to its cleaning power. Similarly, the color and design of packaging might attract consumers, but they do not influence the chemical effectiveness of the cleaning agents themselves. Therefore, focusing on concentration level is essential for achieving optimal cleaning performance and maintaining safety and sanitation in beauty practices.