Why Does Your Hair Look Better at the Beach? Plus Co-Washing - episode 434

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On today’s show we cover lots of questions including…
- Are Japanese mineral sunscreens effective, and what can their labels tell us?
- What do we think of Brooke Shields’ Commence line for mature hair?
- How does Hairstory New Wash work, and how does co-washing compare with shampoo?
- Why can curls behave differently at the beach, and how do humectants affect them?
- Is Vita Reset worth considering as a skin supplement?
Beauty News
-Beef tallow’s return to skin care (latimes.com/lifestyle/story/2026-07-27/tallow-…): moisturizing properties, texture, and the limits of stronger claims.
-PFAS in beauty products (nytimes.com/wirecutter/reviews/advice-clean-ma…): their formulation roles, environmental concerns, and the hosts’ discussion of ingredient labeling and restrictions.
Plus, Valerie prepares for Australia, Perry plans a Toronto talk, and a listener asks how to find the earliest Beauty Brains episodes.
Approximate timestamps
0:00 - Welcome and episode preview
1:00 - Australia, Toronto, and travel plans
3:25 - Beauty News: beef tallow in skin care
7:25 - Beauty News: PFAS in cosmetics
13:40 - Listener feedback: finding the earliest episodes
15:20 - Japanese mineral sunscreens and SPF labels
23:35 - Brooke Shields’ Commence and mature hair
29:35 - Hairstory New Wash and co-washing
35:50 - Beach hair, salt, and curls
37:55 - Humectants, glycerin, and frizz
41:10 - Vita Reset and skin-supplement claims
47:30 - Closing, listener questions, and Patreon
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