Final answer:
Clay or mud masks should be avoided by individuals with dry or sensitive skin because they can remove natural oils and cause irritation. Instead, these individuals can use hydrating masks.
Step-by-step explanation:
Clay or mud masks are generally not intended for use on individuals with dry or sensitive skin. These types of facials can overly strip the skin of its natural oils, leading to increased dryness and irritation. Clay masks are typically recommended for people with oily or acne-prone skin because they can absorb excess oil and help to cleanse pores. However, for someone with dry or sensitive skin, using a clay or mud mask might exacerbate their skin condition. Instead, they might want to opt for hydrating masks that are designed to moisturize and soothe the skin.