Fitzpatrick Skin Types

• Type I - Always burns, never tans, light colored hair and eyes
• Type II - Usually burns, tans with difficulty, light skin, blue or light colored eyes
• Type III - Sometimes burns but usually tans, eyes darker in color, slight coloring to skin (example: Northern Mediterranean or Asian).
• Type IV - Rarely burns, tans easily, dark eye coloring, definite darkening of skin color.
• Type V - Very rarely burns, dark hair and eye color (example: Southern Indian, Spanish, Spanish-African American).
• Type VI - Very dark skin color, dark coarse hair, dark eyes (example: African)

• Pigmented Lesions
• Solar lentigines
• Freckles
• Age or liver spots
• 755 nm wavelength absorbed by melanin
• Melanocytes with high concentrations of melanin are primarily located in the dermal epidermal junction (superficial)
• Short pulse width to break up melanocyte
• Small or large spot size depending on size of lesion

• Wavelength, fluence and pulse duration are chosen based on the type and size of target vessel treated
• Smaller more superficial vessels require short pulse widths to match their thermal relaxation time
• Large diameter vessels require a longer pulse duration to effectively thermo-coagulate the entire vessel

• Sun damage, red or ruddy complexion, discrete telangiectasia, uneven pigmentation and skin textures
• Feathering Technique with short pulse width & rapid hertz
• No cooling required
• Sun damaged skin, deeper penetration
• Deep heating with higher energy and longer pulse durations
• Topical may be needed