The Infrared Vein Viewer can be applied to all patients, particularly to patients whose vein is not easily detected. Vein finder light can be used regardless of skin color. https://sifveinfinder.com/product/infrared-vein-viewer-sifvein-1-0/?srsltid=AfmBOook8fQTyqRX_ZIwnrAfLKqD63OosRj8Tqa8qE8okAEUZ7p08H1Y