What is the process of infusing a negative (alkaline) product into the skin?

The correct answer focuses on the process of infusing alkaline products into the skin, known as anaphoresis. This technique involves the use of a direct current to help facilitate the penetration of negatively charged substances through the skin. In this method, the alkaline (negative) product is introduced with the help of a negative electrode, allowing it to be absorbed effectively.

Anaphoresis leverages the principles of ionization, where oppositely charged ions repel each other. This means that negatively charged ions from the product are driven deeper into the skin, making it a suitable choice for introducing certain ingredients that can benefit the skin, such as hydrating agents or specific treatments that promote skin health.

While other methods like iontophoresis also involve the use of electrical currents, they can be used for both positive and negative ions, which can lead to confusion regarding their specific applications. Cataphoresis, for instance, is usually referred to when positively charged (acidic) products are infused into the skin. Electrolysis, on the other hand, is a hair removal method and not relevant in the context of skin treatment infusion. Understanding these distinctions helps clarify why anaphoresis is specifically the correct answer in this scenario.