How AI Search Is Recommending Natural Skincare Brand: Monthly Trends

Executive Summary

OSEA extended its lead as the most-recommended natural skincare brand in AI search results during September 2026, with valid recommendation coverage of 59.8%, up 6.0 points from 53.8% in August 2026. This was the largest single-month move for any tracked brand this period. The gap between OSEA and second-place True Botanicals widened to 18.0 points in September, up from a 14.3-point gap in August, as OSEA's gains outpaced True Botanicals' more modest 2.3-point increase to 41.8% coverage.

Herbivore Botanicals was the second significant riser of the month, climbing 6.2 points from 14.6% in August to 20.8% in September, moving from near the bottom of the tracked brands into the middle of the pack. On the downside, Ursa Major posted the sharpest decline of any brand, though its 4.0-point drop from 22.0% to 18.0% remained within the range of normal month-to-month variation for the category. Its raw mention presence fell 5.2 points from 24.1% to 18.9%, suggesting the brand appeared in fewer AI responses overall before the recommendation stage.

The category saw genuine movement in September after a relatively quiet August. The month's story is one of leaders pulling away rather than challengers falling back sharply. Beyond OSEA and Herbivore Botanicals, most brands moved within expected ranges: True Botanicals, Tata Harper, Pacifica Beauty, and KORA Organics each gained modest ground, while Acure, Ursa Major, and Youth To The People lost some coverage. No brand recorded a significant decline.

This benchmark begins each month with 800 prompt-surface observations across the category's defined AI/search surface universe. In September 2026, that included 583 unique questions (615 in August). 799 prompts mentioned a tracked brand or competitor in both months, of which 662 were relevant in September (679 in August), with 137 irrelevant (120 in August). The public benchmark is built on the 562 qualified observations that survived both qualification stages in September (560 in August).

Key Findings

Benchmark Context

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

Benchmark-Level Metrics

Within this qualified set, aggregate recommendation behavior shifted as follows:

Recommendation-shaped answers rose to 57.1% of qualified observations in September from 53.8% in August. This means a larger share of AI answers presented shoppers with named brand options, raising the stakes for individual brand visibility.

AI Recommendation Trend

Leaders Pull Away While the Middle of the Pack Tightens

The commercial picture in September is one of a widening two-tier structure. OSEA and, to a lesser degree, True Botanicals operate at a clear remove from the rest of the field, while eight other brands cluster in a 12.1% to 31.7% range.

The two standout movements this month came from OSEA and Herbivore Botanicals. Ursa Major's 4.0-point drop was the largest decline of the month, but it remained within the range of normal month-to-month variation, and the broader category shift was driven primarily by the two risers rather than by any single declining brand.

What Changed This Month

OSEA Extends Its Lead With a Significant Gain

OSEA's valid recommendation coverage rose 6.0 points from 53.8% in August to 59.8% in September, a significant move that pushed it further ahead of the field. The brand's recommendation-shaped presence also strengthened: its top-3 rate climbed 7.7 points from 30.4% to 38.1%, while its rank-one rate rose 2.6 points from 10.2% to 12.8%.

OSEA appeared in 365 of 562 qualified observations in September, up from 336 of 560 in August, and its raw mention presence rose 5.0 points from 60.0% to 65.0%.

OSEA's net sentiment score remained essentially unchanged at 0.98, indicating consistently positive framing across the mentions the brand received.

Highest-priority diagnostic: Which specific prompt categories drove the additional mentions and the disproportionate jump in top-3 placements, and which AI surfaces contributed most to the gain?

Herbivore Botanicals Posts the Largest Move From a Low Base

Herbivore Botanicals recorded the sharpest percentage gain of any brand in September, rising 6.2 points from 14.6% in August to 20.8% in September, a significant move. The brand appeared in 136 of 562 qualified observations in September versus 107 of 560 in August, an increase of 29 mentions. Its raw mention presence rose 5.1 points from 19.1% to 24.2%.

The quality of Herbivore Botanicals' placements also improved. Its top-3 rate climbed 3.4 points from 4.8% to 8.2%, while its rank-one rate rose 0.7 points from 1.1% to 1.8%. The brand moved from 9th in August coverage to 5th in September, passing Acure, Ursa Major, Pacifica Beauty, and KORA Organics.

Highest-priority diagnostic: What changed in the source material or prompt mix that led AI systems to surface Herbivore Botanicals more often, and is the gain concentrated in a particular product or skin-concern category?

Ursa Major Slips While Remaining Within Normal Variation

Ursa Major was the sharpest decliner of September, with valid recommendation coverage falling 4.0 points from 22.0% in August to 18.0% in September. That movement remained within the range of normal month-to-month variation for the category, but the brand's raw mention presence dropped 5.2 points from 24.1% to 18.9%. This suggests Ursa Major is being mentioned in fewer AI responses overall, not just recommended less often.

Within the responses where Ursa Major did appear, its placement weakened. The brand's top-3 rate fell 3.0 points from 10.5% to 7.5%, and its rank-one rate dropped 1.9 points from 4.6% to 2.7%. Ursa Major fell from 5th in August coverage to 7th in September.

Highest-priority diagnostic: Which AI surfaces reduced their mention of Ursa Major, and what content or evidence sources differed between August and September that could explain the visibility loss?

True Botanicals Holds Second Place With Steady Gains

True Botanicals strengthened its position as the clear second recommendation in natural skincare AI responses, with coverage rising 2.3 points from 39.5% in August to 41.8% in September. The brand appeared in 262 of 562 qualified observations in September, up from 250 of 560 in August. Its top-3 rate rose 3.8 points from 23.8% to 27.6%, and its rank-one rate climbed 4.1 points from 10.7% to 14.8%.

While True Botanicals did not match OSEA's absolute gain, its improvement in rank-one placements suggests it is winning the top recommendation slot more often when it does appear. The brand's net sentiment remained effectively perfect at 0.99 in September.

Highest-priority diagnostic: Where did True Botanicals' additional rank-one placements come from, and which competitor did it displace in those responses?

Buyer-Intent Interpretation

In September 2026, all 562 qualified observations fell into the Brand Recommendation cluster, with zero observations in the Pricing & Value or Multi-Brand Comparison clusters. The public benchmark therefore measures which brands AI systems recommend when shoppers ask for a recommendation, but it cannot yet speak to how AI systems characterize price, value, or head-to-head comparisons between natural skincare brands. Those questions require a deeper company-level analysis of the underlying prompts to understand the commercial context behind the recommendation numbers.

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 capturing the query, the AI surface, whether a brand was recommended, the rank of the recommendation, the sentiment expressed, and the citations or sources surfaced where the AI system exposed them. Company-level analysis can go deeper into these patterns to identify which specific prompts a brand wins or loses, which competitors take the recommendation when a brand is absent, and which external sources are shaping the answers.

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 brands such as 100% PURE (68 of 562 qualified observations) carry wider relative uncertainty; their percentage movements should be read with the absolute counts in view.
• The qualified denominator (562 observations in September) is smaller than the raw collection universe (800 prompts), and all brand percentages are calculated within the qualified set.
• Movement between months identifies changes worth investigating; it does not by itself establish why a brand gained or lost recommendation coverage.

Next Step

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

Beneath the aggregate percentages sit the questions that matter for commercial action: which high-intent prompts is a brand winning, which competitor takes the recommendation when a brand loses, what attributes do AI systems associate with each option, and which external sources are shaping those answers. The benchmark signals that OSEA extended its lead and Herbivore Botanicals gained significant ground, but it does not explain the mechanism behind either movement.

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 signal into a concrete plan for the brands that need to defend or build their position in AI-driven recommendations.

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