Brandwave

Earth's Best vs Similac:Which is more popular?

In September 2026, Similac had more branded searches than Earth's Best among baby formula brands in the United States. Similac had about 110,000 branded searches, while Earth's Best had 2,900. Similac made up 28.1% of all baby formula brand searches we track, and Earth's Best accounted for 0.74%. When we asked ChatGPT and Google AI Overviews about baby formula brands, Similac appeared in three of the five answers and Earth's Best in one. Similac was mentioned before Earth's Best in three out of four answers that named either.

Among baby formula brands in the United States in September 2026

Who do people search for more?

Similac, about 38 searches for every 1 for Earth's Best

Similac 110K searchesEarth's Best 2.9K searches

Who does AI mention more?

Similac, mentioned in 3 of 5 answers, Earth's Best in 1

Similac in 3 of 5Earth's Best in 1 of 5

Who does AI recommend more?

Similac, named ahead of Earth's Best in 3 of 4 answers

Similac first in 3Earth's Best first in 1

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Top baby formula brands in ChatGPT and Google AI Overviews

In three ChatGPT questions and two Google AI Overviews, Similac was mentioned in three out of five: in two of the three ChatGPT answers and in one of the two Google AI Overviews. Earth's Best was mentioned in one out of five: in one of the three ChatGPT answers, but not in either of the two Google AI Overviews. Similac was listed before Earth's Best in three out of four answers that named either.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

  1. Similac1st
  2. Enfamil2nd
  3. Bobbie3rd
  4. Kendamil4th
  5. Earth's Best4th
  6. Happy Baby6th
  7. HiPP–
  8. ByHeart–
  9. Holle–
  10. Gerber–
  11. +1 more

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

  • Enfamil4 of 5Named in 2 of 3 ChatGPT answersNamed in 2 of 2 Google answers
  • Similac3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Bobbie3 of 5Named in 2 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Kendamil1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
  • Earth's Best1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Happy Baby1 of 5Named in 1 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • HiPP0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • ByHeart0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Holle0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
  • Gerber0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

+1 more

See every answer about baby formula brands

5 answers

Not named in any answer:

Brands are shown in the order each answer named them. The survey took place in United States on October 27, 2026.

Is Earth's Best or Similac more popular in search?

This chart shows how often people search Google for Earth's Best and Similac by name. Each line represents a brand's share of searches for all 11 baby formula brands we track, month by month, from searches in United States.

Earth's Best and Similac among baby formula brands in the United States, by month

Share of searches by month for Similac, Earth's Best. The figures are in the table below the chart.

View monthly share of searches table
MonthSimilacBobbieEnfamilKendamilHiPPByHeartEarth's BestHappy BabyHolleGerberElse Nutrition
Oct 202525.6%17.2%25.6%11.5%3.4%12.9%0.84%0.84%1%0.75%0.23%
Nov 202515%15%15%8.2%2%42.3%0.74%0.6%0.6%0.44%0.12%
Dec 202525.1%16.9%25.1%13.8%3.4%12.6%0.82%0.82%0.82%0.59%0.23%
Jan 202625%20.5%25%13.7%4.1%7.8%0.82%1%1.2%0.59%0.29%
Feb 202630%20.1%24.6%13.5%4%4.2%0.79%0.98%0.98%0.59%0.24%
Mar 202628.5%19.2%28.5%12.8%3.8%3.5%0.93%0.93%0.93%0.64%0.19%
Apr 202630.3%20.4%24.9%13.6%4.1%3%0.8%0.99%0.99%0.68%0.2%
May 202630.1%20.3%24.8%13.6%5%2.8%0.79%0.99%0.79%0.68%0.2%
Jun 202628.7%19.3%28.7%12.9%3.9%3.3%0.76%0.94%0.94%0.53%0.15%
Jul 202629.3%24.1%24.1%13.2%3.9%2.2%0.77%0.96%0.77%0.58%0.19%
Aug 202628.6%23.5%23.5%15.7%3.8%1.8%0.75%0.75%0.75%0.57%0.23%
Sep 202628.1%23.1%23.1%15.5%3.8%3.3%0.74%0.74%0.74%0.66%0.26%

Earth's Best sells other things too, so only its searches that name this product count here, like “earth's best formula”.

How has the Earth's Best and Similac comparison changed over the last 12 months?

3 findings

How did search popularity change for United States baby formula brands in September 2026?

1 change

  1. Estimated monthly branded searches for Earth's Best in the United States fell 19.4% over 12 measured months, from 3.6K to 2.9K in September 2026.

How are branded searches counted?

2 search terms

Brandwave collects information about searches that people make online using Earth's Best’s and Similac’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.

Earth's Best

1 branded search term

  • earth's best formula

Similac

1 branded search term

  • similac

How the Brand Demand Index is measured

Other head-to-heads among baby formula brands

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