Prestige Makeup Brands: AI Visibility Market Discovery Index

Benchmark Summary

Questions This Section Answers

• Which prestige makeup brand leads AI recommendation coverage, and by how much?
• Which brand saw the largest coverage gain, and which dropped the furthest this month?

Charlotte Tilbury leads valid recommendation coverage in October 2026 at 56.6%, up from 51.6% in August 2026. The gap to the next brand, Armani Beauty at 39.9%, stands at 16.7 points.

The largest coverage increase this month was guerlain, which rose to 9.2% valid recommendation coverage in October 2026, up from 0.0% in both August 2026 and September 2026. The largest coverage decline was Guerlain, which fell to 0.0% valid recommendation coverage in October 2026 from 6.8% in August 2026, following an intermediate reading of 5.7% in September 2026. Across the full baseline-to-current series, the only movements beyond normal month-to-month variation were guerlain's rise and Guerlain's two-month decline.

The benchmark began with 800 prompt-surface observations in each month and produced 627 qualified observations in October 2026 after qualification.

Current Benchmark at a Glance

Qualified surface breadth counts the canonical AI/search surface families with at least one qualified observation: ChatGPT, Copilot, Gemini, Perplexity, AI Overviews, and AI Mode. All six families were present in both months. September 2026, the intermediate month, recorded 631 qualified observations.

For the strategic interpretation of this benchmark, read CiteWorks Studio's analysis of How AI Search Is Recommending Prestige Makeup Brands

Research Scope and Qualification

Questions This Section Answers

• How many prompt-surface observations qualified for the public benchmark, and what happens to the rest?

The public benchmark is narrower than the raw collection universe by design.

Brand-level percentages use the qualified observations as the public denominator, not the raw collection. AI Visibility Market Discovery Methodology

Current Brand Standings

Questions This Section Answers

• Which prestige makeup brands rank highest on valid recommendation coverage, presence, and top-three placement?
• How does rank-one rate differ from overall coverage among the leading brands?

This table shows the primary current-month benchmark view, sorted by valid recommendation coverage.

How to Read the Standings

• Presence rate: share of qualified observations where the brand appears in the AI response.
• Valid recommendation coverage: share of qualified observations where the brand receives a valid recommendation in the answer.
• Top-three rate: share of qualified observations where the brand appears among the top three recommended options.
• Rank-one rate: share of qualified observations where the brand is the first recommendation.
• Net sentiment: positive minus negative mention tone, scaled by total mentions.

For formulas and denominator rules, see AI Visibility Market Discovery Metric Definitions.

Recommendation Coverage Movement

Questions This Section Answers

• Which brands moved beyond normal month-to-month variation since the August 2026 baseline?

Largest Increase: guerlain

guerlain rose to 9.2% valid recommendation coverage in October 2026 from 0.0% in August 2026, a move of 9.2 points beyond normal month-to-month variation. On the month, the brand also rose to 9.2% in October 2026 from 0.0% in September 2026. Its top-three rate reached 4.2% and its rank-one rate 1.0% in October 2026.

Largest Decline: Guerlain

Guerlain fell to 0.0% valid recommendation coverage in October 2026 from 6.8% in August 2026, a decline of 6.8 points beyond normal month-to-month variation. On the month, the brand fell to 0.0% in October 2026 from 5.7% in September 2026. Coverage moved down in each of the two months since the series baseline.

Category Leader: Charlotte Tilbury

Charlotte Tilbury remained the category leader in October 2026 with 56.6% valid recommendation coverage, up 5.0 points from 51.6% in August 2026, within normal month-to-month variation on the baseline comparison. On the month, the brand rose to 56.6% in October 2026 from 46.8% in September 2026, a move beyond normal variation. Charlotte Tilbury also posted the highest presence rate at 70.0% in October 2026 and the highest top-three rate at 33.7%.

Most other tracked brands remained stable on the baseline-to-current comparison. NARS Cosmetics and Dior Beauty each posted month-over-month increases beyond normal variation: NARS rose to 29.2% in October 2026 from 23.0% in September 2026, and Dior Beauty rose to 38.3% from 28.5% in the same period.

Recommendation Placement Snapshot

Questions This Section Answers

• Which brand is most often recommended first, even without the highest top-three rate?

Coverage alone does not show how prominently a brand is recommended. Among the leading brands, placement rates reveal different strengths.

Armani Beauty's 17.2% rank-one rate in October 2026 exceeded Charlotte Tilbury's 9.7%, even though Charlotte Tilbury held the higher top-three rate. Similar coverage levels can still hide different first-position rates.

Buyer-Intent Distribution

Questions This Section Answers

• What buyer-intent classes does the current public series actually capture?

All qualified observations fell into the Brand Recommendation class in both months.

The current public series measures brand-recommendation discovery and does not yet contain qualified observations in the pricing or multi-brand comparison classes.

Historical Measurement Record

Questions This Section Answers

• How has the coverage leader and its lead changed across the three measurements so far?

This is an evergreen benchmark URL. New measurements are added to the same report.

Top 10 Cited Domains

Questions This Section Answers

• Which domains do AI platforms cite most when recommending prestige makeup brands?
• Are citations concentrated in a few sources, and does any brand-owned domain appear?

Across all AI platform responses in October 2026, 6,284 citations were observed across 1,304 unique domains.

The top 10 domains account for a combined 34.9% of citations, indicating that citations are distributed across a long tail of sources rather than concentrated in a few. No tracked brand's own domain appears in the top 10 list. Editorial and review sites (allure.com, byrdie.com, whowhatwear.com) and platform-owned properties (google.com, youtube.com, instagram.com) feature prominently, alongside retailer sephora.com, which was cited by all six canonical AI surface families.

Evidence and Source Layer

The benchmark is built from prompt-level observations that retain the query, AI/search surface, answer, brand outcome, recommendation placement, sentiment, and, where exposed, citations or attributable evidence sources. Source presence is evidence about the information environment. It is not automatically proof that the source caused the recommendation.

Scope Boundaries

This public benchmark does not measure:

• Market share or sales attributable to AI recommendations.
• Every possible AI response to a given query.
• Organic-search ranking on traditional search engines.
• Social media mention volume or sentiment outside AI surfaces.
• Private or sponsored channels, including brand-owned assistants.
• Causality from a metric movement alone; the benchmark records changes but does not establish why they occurred.

About This Benchmark

The LLM Authority Index AI Visibility Market Discovery Index tracks how AI and search surfaces recommend brands within a category, measuring presence, recommendation coverage, placement, and sentiment across six canonical AI surface families each month.

• AI Visibility Market Discovery Methodology
• AI Visibility Market Discovery Metric Definitions
• AI Visibility Market Discovery Research Standards
• Modeled AI Visibility Authority Value

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