Identify your skin undertone: cool, warm, neutral, or olive
Test foundation shades on your jawline, not your hand or wrist
Check the shade in natural daylight
Match the foundation to your neck and chest for consistency
Choose a shade that disappears into your skin without leaving a line
Test multiple shades side by side if needed
Wait a few minutes after application to see if the color oxidizes
Consider your skin type when choosing finish and formula
Use samples before buying a full-size product
Recheck your shade seasonally as your skin tone may change