Are there any new clinical studies showing that topical vitamin c serums combined with ferulic acid significantly slow down premature skin aging
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Are there any new clinical studies showing that topical vitamin c serums combined with ferulic acid significantly slow down premature skin aging
3 real searches · 1 real-search pass
2024 2025 2026 clinical trial topical vitamin C ferulic acid photoaging randomized human study skin agingGoogle ↗
OBSERVEDReason
topical L-ascorbic acid ferulic acid clinical study photoaging human skin collagen wrinkles trialGoogle ↗
OBSERVEDReason
vitamin C ferulic acid serum clinical evidence UV photoprotection study 15% 0.5% ferulic acidGoogle ↗
OBSERVEDConsequence
Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.
Query classes
Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.
ChatGPT real searches (3)
Classes come from the query-classifier (a local Laya model). 3 of 3 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT3 real searches · gpt-6
2024 2025 2026 clinical trial topical vitamin C ferulic acid photoaging randomized human study skin aging Google ↗
topical L-ascorbic acid ferulic acid clinical study photoaging human skin collagen wrinkles trial Google ↗
vitamin C ferulic acid serum clinical evidence UV photoprotection study 15% 0.5% ferulic acid Google ↗
Queries
3 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
2024 2025 2026 clinical trial topical vitamin C ferulic acid photoaging randomized human study skin aging OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
topical L-ascorbic acid ferulic acid clinical study photoaging human skin collagen wrinkles trial OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
vitamin C ferulic acid serum clinical evidence UV photoprotection study 15% 0.5% ferulic acid OBSERVED | Google ↗ AI Mode ↗ | — | Consequence | — | — | 1x of 1 |