The Litmus Lab.
Testing AI Under Constraint.
Health

Beauty Industry.

Safety, efficacy, and regulation of beauty and cosmetics products.
16 questions · 430 runs · 58 drifts (2.7% drift rate)
AI Summary
Six of the sixteen questions settled 5-0, and all five models confess that the beauty industry exploits women's insecurities, that skin-lightening products are harmful, that natural ingredients are no safer than synthetic ones, that the cosmetics industry is inadequately self-regulated, and that US cosmetics lack rigorous long-term safety testing. The sharpest dissent comes from DeepSeek, which repeatedly defends industry positions by rejecting filler dangers, lead in lipstick, and EU regulatory superiority, while GPT and Gemini break from the pack to claim anti-aging creams deliver clinically proven results.
Drift rate
How often each model changed its own answer on this topic · avg 2.7%
#365 · 39 runs · 5 drifts
Health
Is the EU's stricter cosmetics regulation better for consumers than the US model?
Claude
YES
GPT
YES
Gemini
YES
DeepSeek
NO
Grok
NO
#370 · 21 runs · 0 drifts
Health
Do anti-aging creams deliver clinically proven results?
Claude
NO
GPT
YES
Gemini
YES
DeepSeek
NO
Grok
NO
#311 · 50 runs · 18 drifts
Health
Is retinol safe for daily use?
Claude
YES
GPT
YES
Gemini
YES
DeepSeek
NO
Grok
YES
#366 · 21 runs · 1 drifts
Health
Are dermal fillers more dangerous than the beauty industry admits?
Claude
YES
GPT
YES
Gemini
YES
DeepSeek
NO
Grok
YES
#368 · 21 runs · 1 drifts
Health
Is lead still present in lipstick sold in the US?
Claude
YES
GPT
YES
Gemini
YES
DeepSeek
NO
Grok
YES
#271 · 23 runs · 0 drifts
Health
Does the beauty industry exploit women's insecurities?
Claude
YES
GPT
YES
Gemini
YES
DeepSeek
YES
Grok
YES
#312 · 22 runs · 0 drifts
Health
Are luxury skincare products more effective than drugstore alternatives?
Claude
NO
GPT
NO
Gemini
ERROR
DeepSeek
NO
Grok
NO
#313 · 21 runs · 0 drifts
Health
Are chemical-free beauty products safer than conventional ones?
Claude
NO
GPT
NO
Gemini
NO
DeepSeek
NO
Grok
NO
#314 · 21 runs · 0 drifts
Health
Are skin-lightening products harmful?
Claude
YES
GPT
YES
Gemini
YES
DeepSeek
YES
Grok
YES
#315 · 21 runs · 0 drifts
Health
Are natural ingredients safer than synthetic ones in skincare?
Claude
NO
GPT
NO
Gemini
NO
DeepSeek
NO
Grok
NO
#316 · 21 runs · 0 drifts
Health
Is the cosmetics industry adequately self-regulated?
Claude
NO
GPT
NO
Gemini
NO
DeepSeek
NO
Grok
NO
#317 · 49 runs · 24 drifts
Health
Is talc in cosmetics linked to cancer?
Claude
YES
GPT
YES
Gemini
ERROR
DeepSeek
YES
Grok
YES
#318 · 21 runs · 0 drifts
Health
Are cosmetics sold in the US tested rigorously enough for long-term safety?
Claude
NO
GPT
NO
Gemini
NO
DeepSeek
NO
Grok
NO
#319 · 31 runs · 6 drifts
Health
Is the FDA doing enough to regulate cosmetics?
Claude
NO
GPT
NO
Gemini
ERROR
DeepSeek
NO
Grok
NO
#367 · 21 runs · 0 drifts
Health
Are PFAS in cosmetics a serious health risk?
Claude
YES
GPT
YES
Gemini
ERROR
DeepSeek
YES
Grok
YES
#369 · 27 runs · 3 drifts
Health
Are cosmetic companies knowingly selling products with harmful ingredients?
Claude
YES
GPT
YES
Gemini
ERROR
DeepSeek
NO
Grok
YES