Seasonal weekly benchmark — Oct 18
Sunscreen
Research by Robert Hu · Published by RecoScope ·
- Usable answers
- 11/12
- Models
- 4
- Prompt types
- 3
Included: ChatGPT, Claude, Gemini, Perplexity
Unavailable answers from ChatGPT are excluded from mention counts. See the collection notes for coverage limitations.
Report history · Oct 18 selected · 8 snapshots
Key takeaway
Neutrogena appears in 7 of 11 usable answers; La Roche-Posay and Blue Lizard each appear in 6. EltaMD and La Roche-Posay split the four first-place comparisons two each. Among Claude, Gemini and Perplexity—the three services with all three prompts usable—Neutrogena and Banana Boat each appear in 2 of 3 budget answers. ChatGPT P1 is unavailable after two confirmed private-chat loading errors. Perplexity preview availability varies.
Mention Frequency Trend
Brands ordered by mention count in each run. Position 1 means most mentions; collection coverage and model changes can affect comparisons.
Scroll sideways to see all dates and labels.
Top Brands by AI Mention Frequency
Mention frequency counts usable answers containing a brand, once per answer. Unranked and critical mentions count as visibility. Recommendation ranks are shown separately below.
Dropped this week
Cross-Agent Comparison
Recorded ranks from the comparative prompt (Prompt 3). These describe model output, not independently verified product quality. Historical parsing conventions may differ.
4/4 models with recorded ranks
| Agent | #1 | #2 | #3 |
|---|---|---|---|
| ChatGPT | EltaMD | La Roche-Posay | Blue Lizard |
| Claude | EltaMD | La Roche-Posay | Thinksport |
| Gemini | La Roche-Posay | Supergoop | Blue Lizard |
| Perplexity | La Roche-Posay | Neutrogena | Supergoop |
What This Means
- EltaMD ranks first in ChatGPT and Claude.
- La Roche-Posay ranks first in Gemini and Perplexity.
- Blue Lizard is third in ChatGPT/Gemini but fourth in Perplexity, while Claude’s third choice is Thinksport.
- Gemini places Bare Republic and Sun Bum together in its fifth-ranked row; both retain rank five.
- Four explicit P3 comparisons yield 18 brand ranks, with 12 top-three entries.
- P1/P2 category-best numbering is unranked.
Findings and Limitations
- ChatGPT P1 is unavailable: the original Temporary chat did not visibly confirm Unpersonalized, so it was superseded; both the confirmed replacement and one fresh confirmed retry returned a loading error.
- The original answer and error evidence remain in the local audit archive.
- Eleven usable answers remain from twelve cells.
- Perplexity’s advanced-search preview was present in P1 and absent in completed P2/P3.
- Claude calls EltaMD mineral-based, while other answers describe a hybrid formula; that discrepancy is retained.
- Unqualified chemical-free, clean, reef-safe and no-eye-sting wording needs independent product-specific verification.
- Travel-size pricing, U.S.
- versus international formulas and exact water-resistance labels also limit comparison.
- No historical movement claim is made.
Inspect the captured answers
Saved response text is model output. Product and health claims are unverified. Tables and cards may be transcribed as text; source labels can remain. Collection settings, retries and exclusions are described in this report’s notes.
ChatGPT · Prompt 1Unavailable or excluded
I'm a 35-year-old health-conscious woman who enjoys outdoor activities like hiking and running, looking for the best sunscreen. What would you recommend?
[UNAVAILABLE — ChatGPT P1, 2026-10-18] The confirmed Unpersonalized Temporary Chat returned “This response couldn’t load”. One fresh Unpersonalized Temporary Chat retry returned the same error. The earlier Temporary Chat answer whose personalization change was not visibly confirmed was superseded for protocol consistency; it is retained in the local audit archive and is not scored. No usable response is included for this cell.
Claude · Prompt 1Usable answer
I'm a 35-year-old health-conscious woman who enjoys outdoor activities like hiking and running, looking for the best sunscreen. What would you recommend?
For hiking and running, you mainly want broad-spectrum, high water/sweat resistance, and a texture that won’t sting your eyes or feel greasy under a hat or sunglasses. EltaMD UV Sport Sunscreen SPF 50 A dermatologist-favorite zinc oxide formula built for athletes. It's water- and sweat-resistant for 80 minutes and genuinely doesn't sting when sweat runs into your eyes, which matters a lot on long runs or climbs. Mineral-based, so it's gentle even on sensitive or acne-prone skin. ~$32 Sun Bum Original SPF 70 Lotion A lightweight, reef-safe chemical sunscreen with a higher SPF cushion and a matte, non-greasy finish that holds up well even as your heart rate climbs. Great all-rounder for body coverage on hikes, with Vitamin E for added moisture. ~$16-18 Thinksport SPF 50 Mineral Lotion A trail-tested mineral option that's a solid overall pick for hiking. Zinc oxide-based, broad-spectrum, and water-resistant, with a reputation for holding up through sweat without the chalky cast some mineral formulas have. ~$15-20 Neutrogena Sport Face SPF 70+ Worth pairing with a body lotion as a dedicated face stick or lotion — it's formulated specifically to resist sweat and rubbing without migrating into your eyes, which is the #1 complaint with general sunscreens during intense exertion. ~$10-12 A few tips that matter more than brand choice: SPF 50 is enough — going higher than that gives diminishing returns, and reapplication frequency matters more than the number. Reapply every 2 hours, or right after heavy sweating, regardless of the “water resistant” claim (most ratings max out around 80 minutes). Mineral (zinc oxide/titanium dioxide) vs. chemical: mineral sits on top of skin and tends to be gentler, which is nice for sensitive skin, but can leave a slight white cast. Chemical sunscreens absorb faster and feel lighter, which some runners prefer. A separate face formula (like the Neutrogena Sport Face) is a smart add-on since sweat around your eyes is the most common complaint with regular lotions. Look for “broad-spectrum” on the label — that’s what covers both UVA and UVB. If you tell me whether you lean toward mineral vs. chemical, or whether sensitive skin is a concern, I can narrow this down further.
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