Which of the following forms of soap should a lash technician use to minimize the risk of spread of pathogens?

A lash technician should use liquid soap in a pump container to minimize the risk of pathogen spread for several reasons. This type of soap is usually dispensed in a controlled manner, reducing the likelihood of contamination that can occur with communal or open soap containers. Pump dispensers allow for a hygienic single-use application, as the soap is not exposed to air and external contaminants every time it is used, which is a key factor in maintaining cleanliness.

In contrast, foaming soap, while convenient and pleasant to use, might not always be as effective in delivering a sufficient amount of soap for thorough cleansing when compared to liquid soap in pump containers. Bar soap can harbor bacteria since it's often left exposed, allowing multiple users to touch the same surface, which encourages cross-contamination. Gel soap may also have similar risks as bar soap, particularly if it is not dispensed properly.

Overall, liquid soap in a pump container provides the ideal balance of effectiveness and hygiene, making it the best choice for lash technicians aiming to uphold stringent cleanliness protocols while performing their services.