Lookalike Audiences

Audiences Meta creates by finding users similar to your source audience. Quality depends on source audience quality. Best source: actual customers/purchasers.

Syntax

meta-ads

Source Audience → Meta finds similar users → 1-10% similarity range

Example

meta-ads

// Lookalike percentages:
"1% Lookalike": {
  similarity: "Most similar to source",
  size: "Smallest (~2M US)",
  use: "Highest relevance prospecting"
}
"5% Lookalike": {
  similarity: "Moderate",
  size: "~10M US",
  use: "Scaling after 1% saturates"
}

// Best source audiences:
// 1. Customer purchase list
// 2. High-value website visitors
// 3. Email subscribers

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