What is a potential side effect of waxing, regardless of technique used?

The correct answer is redness and irritation. Waxing involves the application of a sticky substance to the skin, which is then pulled away, removing hair from the follicle. This process can cause temporary damage to the skin's surface, leading to inflammation and sensitivity.

Redness is a common reaction as the skin may react to the sudden removal of hair, and irritation can occur as the skin may be sensitive not only to the wax itself but also to the pulling action involved. These reactions typically dissipate after a short period, but they are indeed common side effects experienced by many people after waxing.

Other options, while they can occur in certain contexts, do not generally apply to all waxing scenarios. For instance, excessive oiliness is not a typical reaction to waxing; rather, the skin may become drier or more sensitized. Skin peeling can happen, but it is usually associated with other skin treatments rather than waxing itself. Permanent hair removal is not a typical outcome of waxing; instead, it provides temporary hair removal and hair regrowth typically occurs after a few weeks. Hence, redness and irritation are the most universally expected responses regardless of the technique used.