Why do homemade sunscreen formulations fail lab testing for SPF ratings and what are the risks of using them outdoors
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Fan-out diagram
The searches the AI actually ran for this prompt.
SEED QUERY
Why do homemade sunscreen formulations fail lab testing for SPF ratings and what are the risks of using them outdoors
2 real searches · 1 real-search pass
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 (2)
Classes come from the query-classifier (a local Laya model). 1 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.
Searches and sources
ChatGPT2 real searches · gpt-6
why homemade sunscreen fails SPF testing FDA sunscreen testing zinc oxide dispersion American Academy Dermatology homemade sunscreen risks Google ↗
FDA sunscreen SPF testing broad spectrum water resistance requirements OTC sunscreen guidance Google ↗
- American Academy of Dermatology warns that homemade sunscreens are not proven to be effective and may leave users vulnerable to skin cancer · aad.org
- Demonstration of the dangerous nature of ‘homemade’ sunscreen recipes - Couteau - 2021 - Journal of Cosmetic Dermatology · onlinelibrary.wiley.com
- Questions and Answers: FDA announces new requirements for over-the-counter (OTC) sunscreen products marketed in the U.S. · fda.gov
- Nonprescription Sunscreen Drug Products— Safety and Effectiveness Data Guidance for Industry · fda.gov
- Labeling and Effectiveness Testing: Sunscreen Drug Products for Over-The-Counter Human Use · fda.gov
- Sunscreen: How to Help Protect Your Skin from the Sun · fda.gov
- Sunscreen: How to Help Protect Your Skin from the Sun · fda.gov
Queries
2 queries · click a column to sort
| Query / type | Search | Intent | Query class | Routing format | Cluster | Freq ↓ | Weight |
|---|---|---|---|---|---|---|---|
why homemade sunscreen fails SPF testing FDA sunscreen testing zinc oxide dispersion American Academy Dermatology homemade sunscreen risks OBSERVED | Google ↗ AI Mode ↗ | — | Reason | — | — | 1x of 1 | |
FDA sunscreen SPF testing broad spectrum water resistance requirements OTC sunscreen guidance OBSERVED | Google ↗ AI Mode ↗ | — | Instruction | — | — | 1x of 1 |