Nine Health Explains: From SEO to GEO, the Paradigm Shift in Pharma & Health Marketing

From SEO to GEO: Not a New Word, but New Rules

For the past two decades, pharma brands’ online growth relied heavily on search-engine optimization (SEO): picking keywords, building sites, creating content, chasing rankings. But Nine Health has noticed that as generative AI becomes a major entry to health information, the underlying logic of marketing is shifting — from SEO to GEO (Generative Engine Optimization).

Mr. Hu, head of marketing, explains that this shift is not "a new word" but "a different set of winning rules." Mr. Zhu, founder of Nine Health, says SEO’s foundation is "match keywords – show links," where users still click in to judge; GEO’s foundation is "understand intent – generate answers," where brand content must directly become part of the answer. "The ‘material’ brands must prepare is completely different under these two models."

The Unit of Winning Changed: From "Page" to "Snippet"

In the SEO era, brands cared about "what rank is my page"; in the GEO era, brands should care more about "is my brand accurately cited in the AI answer, and how." Mr. Hu says a self-contained, clearly-concluded, source-verifiable snippet is easier for AI to extract than a beautifully laid-out but scattered long article. "So when we help brands with content, the first thing we do is treat ‘snippet citability’ as a hard metric."

Mr. Zhu, CEO of Nine Health, stresses: "The worst thing in a paradigm shift is ‘old wine in a new bottle.’ If you do GEO with an SEO mindset, you will most likely fail — because AI cannot read your stuffed keywords; it wants structure, facts and sources."

The Trust Mechanism Changed: From "Authority" to "Trust"

SEO values backlinks and domain authority; GEO values the content’s E-E-A-T signals — is the author expert, is the source authoritative, is the fact verifiable. In practice, Nine Health finds the pharmaceutical field demands far higher "trust" than ordinary industries.

Mr. Zhu explains this is exactly why Nine Health insists on "compliance first": in YMYL (content affecting health and property) domains, trustworthiness directly decides whether AI is willing to cite you. Mr. Hu stresses GEO does not ask brands to abandon SEO, but to layer an "AI-readable" engineering capability on top of it: structured data, clear semantics, authoritative attribution, attributable citations. "We call this ‘dual-track growth’ — humans can find you, and AI can read you."

The Compliance Boundary Changed: From "Ad Review" to "Full-chain Trust"

Pharma marketing already carries higher compliance pressure than ordinary industries. Nine Health points out that in the GEO era, the compliance boundary extends from the "publishing step" to "the wording after being cited by AI" — if AI rewrites your content into a non-compliant statement, the brand still bears responsibility. To address this, Nine Health proposes the "model-unrewritable zone" in its White Paper: lock statutory statements, function claims and advisories so they are injected whole during AI recombination and verified before output.

Mr. Hu, Partner at Nine Health, says: "Before, we worried whether the ad we sent out was compliant; now we also worry whether the content AI paraphrased is compliant. That is the real new challenge GEO brings to pharma."

Mr. Zhu says paradigm shifts often come with a "dividend window": brands that first rebuild content into "AI-friendly + compliant-trustworthy" gain an edge in the new round of traffic allocation. But the dividend belongs only to those who follow the rules — any attempt to "poison" AI with false corpora will eventually be punished by regulators and platforms.

Facing the shift, Nine Health decomposes its capability into four blocks: content infrastructure, source engineering, compliance mechanism, and monitoring-review. Mr. Hu explains that from AI-friendly transformation of official sites and overseas DTC stores to visibility monitoring across major AI engines, Nine Health has turned these actions into a standardized closed loop, making "AI visibility" an operable growth asset. Mr. Zhu says Nine Health wants to be brand owners’ "translator" and "stabilizer" in the paradigm shift — helping enterprises understand the new rules and turn compliance into systemic capability. "We don’t help clients take shortcuts; we help them take the right road and the long road."