Check your skin tone in natural daylight
Identify your undertone: cool, warm, neutral, or olive
Compare foundation shades on your jawline, not your hand
Choose shades that disappear into your skin
Test 2 to 3 shades close to your match
Let the foundation sit for a few minutes to see if it oxidizes
Match your shade to your neck if your face and neck differ
Use online shade-matching tools if available
Compare your current foundation shade to known brand shade references
Ask for samples before buying full-size products
Recheck your shade seasonally if your skin tone changes