How AI Search Is Recommending Essential Oil: Monthly Trends

Executive Summary

Plant Therapy strengthened its position as the category leader in September 2026, reaching 82.2% valid recommendation coverage, up 5.3 points from 76.9% in July 2026. The gap between Plant Therapy and the next closest brand, Edens Garden, now stands at 21.7 points, up from 14.0 points in July. This widening margin reflects a category where the leader is consolidating its position while the rest of the field remains comparatively stable.

The category's largest upward mover over the full series was Plant Therapy, which combined a 5.3-point gain in coverage with a 15.3-point rise in top-three recommendation rate (from 56.9% to 72.2%) and a 14.0-point increase in rank-one rate (from 48.2% to 62.2%). These figures show AI systems are not only mentioning Plant Therapy more frequently, they are positioning it as the primary recommendation in a growing majority of qualified answers. Raw presence also reached 92.4%, up 4.2 points from July.

The sharpest decliner was doTERRA, whose valid recommendation coverage fell a significant 7.0 points from 30.7% in July to 23.7% in September. Revive Essential Oils also recorded a significant decline of 4.4 points, dropping from 9.7% to 5.3%. Both brands have now declined for two consecutive months, and the benchmark's notable gaps analysis shows the Plant Therapy-doTERRA gap widening every month to 58.5 points.

The category overall remains in flux, driven by two opposing forces: Plant Therapy's sustained rise and doTERRA's sustained slide. No single brand's movement between August and September alone stood out from ordinary monthly variation, but the cumulative July-to-September movements for Plant Therapy, doTERRA, and Revive Essential Oils all exceed normal month-to-month variation.

Each monthly run begins with 800 prompt-surface observations (482 unique questions in July, 505 in August, and 479 in September) across the benchmark's defined AI/search surface universe. Of those, 798 (July), 799 (August), and 800 (September) mentioned a tracked brand or competitor; 760 (July), 771 (August), and 781 (September) were relevant and 38 (July), 28 (August), and 19 (September) were irrelevant. The public metrics use the 485 (July), 506 (August), and 511 (September) observations that survive both qualification stages.

Key Findings

Benchmark Context

The report separates the raw collection universe from the qualified analysis set. Brand-level recommendation percentages are calculated within the qualified benchmark set.

The table below moves from that qualification funnel to the headline benchmark metrics tracked across both months.

Benchmark-Level Metrics

The valid recommendation shortlist share rose 3.3 points even as the recommendation-shaped answer share fell 5.5 points, indicating that while AI systems produced fewer recommendation-shaped answers overall, a higher proportion of qualified observations yielded valid brand recommendations. The September run included 8 pricing analysis responses and 28 comparison analysis responses, along with 3 cautionary answers, a response type that did not appear in July. August's 43 comparison analysis responses remain the high point across the three months for that format.

AI Recommendation Trend

Plant Therapy Extends Its Lead as the Category Leader

Plant Therapy, doTERRA, and Revive Essential Oils each moved outside the range of normal month-to-month variation when measured from July to September. The remaining seven tracked brands held stable positions across the full series, though several, including Rocky Mountain Oils and NOW Foods, showed consistent upward drift within that stable classification.

What Changed This Month

Plant Therapy

Plant Therapy's valid recommendation coverage rose from 76.9% in July to 82.2% in September, a significant 5.3-point gain across the full series. The brand's most dramatic movement came in placement: top-three rate jumped 15.3 points from 56.9% to 72.2%, and rank-one rate rose 14.0 points from 48.2% to 62.2%. Between August and September alone, coverage rose 2.2 points from 80.0%, a move within normal variation.

Raw presence reached 92.4% of qualified observations in September, up 4.2 points from 88.2% in July. Plant Therapy was present in 472 of 511 qualified observations and received 420 valid recommendations.

The distinction to notice is that Plant Therapy has moved from being the most visible brand to being the most recommended brand on placement as well. The rank-one rate of 62.2% means AI systems named Plant Therapy first in nearly two of every three qualified observations, a level of primary positioning no other tracked brand approaches.

Highest-priority diagnostic: Which prompt types, surfaces, or evidence sources are driving the 14.0-point gain in rank-one recommendations across the full series?

doTERRA

doTERRA's valid recommendation coverage fell a significant 7.0 points from 30.7% in July to 23.7% in September, marking the brand's second consecutive month of decline. The brand's valid recommendation count dropped from 149 in July to 121 in September out of a slightly larger qualified set. Between August and September, coverage fell 0.8 points from 24.5%, a move within normal variation that does not by itself explain the cumulative shift.

Presence declined more sharply than coverage, with raw mention presence at 57.5% in September, down 10.3 points from 67.8% in July. Sentiment also softened, with the net sentiment score moving from 0.4 in July to 0.2 in September, and negative visibility rising from 7.8% to 12.3%.

The distinguishing signal for doTERRA is a broad erosion across presence, coverage, placement, and sentiment simultaneously. This is not a case of AI systems mentioning the brand but declining to recommend it; the brand is appearing in a shrinking share of answers altogether, and when it does appear, the tone is more negative.

Highest-priority diagnostic: Which competitor is capturing the recommendations and mentions doTERRA is losing, and which prompt clusters show the steepest decline?

Revive Essential Oils

Revive Essential Oils recorded a significant 4.4-point decline in valid recommendation coverage, from 9.7% in July to 5.3% in September. The brand's valid recommendation count fell from 47 to 27, a small absolute base that makes the percentage movement more pronounced. The brand's raw mention presence also fell a significant 3.9 points from 11.1% to 7.2%.

Top-three rate declined 1.7 points from 2.7% to 1.0%, while rank-one rate held flat at 0.2%. The brand was present in 37 observations in September and received 27 valid recommendations, down from 54 mentions and 47 valid recommendations in July.

With such a small count base, the significant classification reflects a real directional shift, but the commercial magnitude should be read cautiously. Revive Essential Oils also saw its net sentiment score move from 1.0 to 0.7 over the full series, though the brand still recorded no negative visibility in the qualified set.

Highest-priority diagnostic: Which prompt categories drove the loss of 20 valid recommendations between July and September, and is this surface-specific or category-wide?

Notable Gap Movement

Three gaps widened every month across the series. The Plant Therapy-doTERRA gap widened by 12.3 points from 46.2 to 58.5 points, the Rocky Mountain Oils-doTERRA gap widened by 10.3 points from 15.3 to 25.6 points, and the Plant Therapy-Revive Essential Oils gap widened by 9.7 points from 67.2 to 76.9 points. These movements reflect both Plant Therapy's rise and the simultaneous decline of doTERRA and Revive Essential Oils, pointing to a category that is becoming more stratified at both the top and the bottom.

Buyer-Intent Interpretation

In September, all 511 qualified observations fell into the Brand Recommendation cluster, consistent with the pattern across July and August where all qualified observations mapped to the same cluster. The public benchmark therefore captures which brands AI systems recommend, and with what frequency and ranking, but it cannot yet answer price, value, or head-to-head comparison questions at the cluster level. The September run did surface 8 pricing analysis and 28 comparison analysis response types within the qualified set, along with 3 cautionary answers, indicating those response formats are present but have not been isolated into distinct buyer-intent clusters in the public metrics.

Brand Opportunity Summary

The benchmark identifies where attention is warranted; a company-level analysis is needed to explain why.

Evidence Behind the Benchmark

The aggregate metrics are built from prompt-level observations (query, surface, recommendation outcome, rank, sentiment, and citations where exposed). Company-level analysis can go deeper into prompt, competitor, surface, and evidence patterns. Source presence is not automatically treated as proof of causation.

About This Benchmark

This report is part of the LLM Authority Index AI Market Discovery research program.

• AI Industry Market Discovery Methodology
• AI Industry Market Discovery Metrics
• AI Industry Market Discovery Standards

Report-Specific Interpretation Notes

• Small-count movement: Revive Essential Oils' significant decline of 4.4 points is based on a drop from 47 to 27 valid recommendations; the directional signal is meaningful but the percentage movement is amplified by the small base.
• Qualified denominator vs raw collection: All brand-level percentages are calculated within the qualified set of 485 (July) and 511 (September) observations, not the 800 source prompts collected.
• Directional analysis: Month-over-month movement identifies changes worth investigating; it does not by itself establish the cause of those changes. Both significant decliners over the full series, doTERRA and Revive Essential Oils, warrant diagnostic review rather than presumptive conclusions. Between August and September alone, no single brand's movement stood out from ordinary monthly variation.

Next Step

The Public Benchmark Shows Where a Brand Is Winning or Losing. A Company-Level Audit Shows Why.

Beneath the aggregate percentages lie specific questions that the public benchmark surfaces but cannot answer alone. Which high-intent prompts is a brand winning or losing? When a brand loses a recommendation, which competitor takes it? What attributes do AI systems associate with each option, and which external sources are shaping those answers? These are the questions that determine whether a coverage number reflects durable authority or a fragile position.

A company-specific AI visibility audit maps those prompt, surface, competitor, ranking, sentiment, and evidence-source patterns into a prioritized visibility strategy. It turns the benchmark's directional signals into a concrete action plan tailored to a brand's specific competitive context.

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