Pigments play a crucial role in Semi-Permanent Makeup as they determine the outcome of the cosmetic procedure. Different types of stains, including Iron Oxide, Titanium Dioxide, Carbon Black, Organic, and Inorganic pigments, can be used in Semi-Permanent Makeup. Several factors should be considered when choosing a tint, including skin type, skin tone, personal preference, potential allergic reactions, and client health concerns. The quality, color, pigment load, stability, and brightness of the pigment are also crucial considerations in selecting the suitable stain for a specific Semi-Permanent Makeup procedure.