Low pH shampoo - hard water - supplement sunscreen and more - episode 415

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On today’s show we cover lots of questions including…
• Do low pH shampoos preserve color?
• Can a supplement provide you sun protection?
• What effects does hard water have on hair color?
• How significant are the health risks to taking topical tretinoin?
• What’s the difference between aerosol and non aerosol sprays?
Beauty News
NY SCC meeting (gcimagazine.com/events/event-coverage/news/229…)
FDA withdraws talc rule. (vogue.com/article/fda-withdraws-rule-to-test-a…)
New sunscreen in US (cosmeticsandtoiletries.com/regulations/spf-sun…)
Electrokinetics confirms BTMC is best conditioner! (cosmeticsdesign-asia.com/Article/2025/12/10/el…)
Question links
Science direct article (sciencedirect.com/science/article/pii/S2451993…)
Cleveland clinic article (consultqd.clevelandclinic.org/common-acne-medi…)
Approximate timestamps
0:00 - Intro
1:00 - Chit chat - SCC meeting in New York
9:15 - Beauty News - FDA talc rule
12:00 - Best hair conditioner
15:00 - New sunscreen in the US
18:15 - Low pH shampoo
20:40 - Supplement sun screen
24:50 - Hard water and hair
29:50 - Topical tretinoin
37:20 - Aerosol vs non aerosol
41:05 - Ending
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