Why should PMU pigments be tested for stability in different lighting?

Why should PMU pigments be tested for stability in different lighting?

• A. Some pigments change appearance under different lighting; testing helps ensure color will read correctly in various settings
• B. To measure the client’s eye color
• C. To determine pigment expenses
• D. To check room temperature

Answer: (A)

Colors can look different under various light sources because the spectrum of the light changes how the pigment is perceived. This phenomenon means a pigment might read as one shade in daylight and shift in indoor tungsten or fluorescent lighting. Testing pigments for stability across lighting conditions helps ensure the final result reads consistently in real-life settings—outdoors, clinics, and typical rooms—so the color stays true to what was intended and meets client expectations. It also accounts for how healed pigment interacts with individual skin tones over time. The other options don’t address how lighting changes color perception or read in practice.

Colors can look different under various light sources because the spectrum of the light changes how the pigment is perceived. This phenomenon means a pigment might read as one shade in daylight and shift in indoor tungsten or fluorescent lighting. Testing pigments for stability across lighting conditions helps ensure the final result reads consistently in real-life settings—outdoors, clinics, and typical rooms—so the color stays true to what was intended and meets client expectations. It also accounts for how healed pigment interacts with individual skin tones over time. The other options don’t address how lighting changes color perception or read in practice.