The Law of Line Extension

Brands die when they try to be everything to everyone. Sam Parr nailed it in his tweet about the “Law of Line Extension.” When you stick your brand name on too many random products, you confuse people and water down your brand’s identity.

Why it works

• Strong brands own one idea in your customer’s mind.
• Line extension spreads attention and trust too thin.
• A new brand can reach new markets without hurting the old one.
• Focus = clarity = strong associations.

Real-world examples

• Honda → Acura: Same company, separate luxury brand. Worked great.
• BuzzFeed → Ovens: Content brand tried products. Total flop.
• Coca-Cola’s Dasani: New product line, separate sub-brand for bottled water.
• Amazon → AWS: New division, new name, massive success.