Mineral vs. Chemical Sunscreen: The Reef Damage, Aerosol Risks & SPF Myths Nobody's Talking About with Shannon Kenner of Waxhead Sun Defense

#34 Mineral vs. Chemical Sunscreen: The Reef Damage, Aerosol Risks & SPF Myths Nobody's Talking About with Shannon Kenner of Waxhead Sun Defense

☀️ mineral or chemical...does your sunscreen choice actually matter? we sat down with Shannon Kenner, co-founder of Waxhead Sunscreen, to find out.

Shannon and his wife, Kari, started  @gowaxhead  after their son's eczema pushed them to dig into what's actually in sunscreen and what they found changed everything about how their family approaches sun protection.

☀️we're diving into:
+ why "reef safe" isn't a regulated term (and what to actually look for)
+ oxybenzone swapped for avobenzone, same problem, different name
+ how aerosol sunscreens may be contaminated with benzene, a known carcinogen
+ the real difference between nano and non-nano zinc oxide
+ why zinc oxide doesn't expire (and chemical sunscreen does)
+ the white cast "problem" and why Shannon calls it "the badge of smart living" + tattoos, melasma and mineral sunscreen...does it work differently?
+ SPF science explained simply- why 30 is basically always enough

☀️ The Waxhead Sun Defense team was also kind enough to offer our listeners a 20% discount off your first order! Use promo code: crunchy

☀️ if you want more deep dives, clean swaps, podcast extras, all the things we couldn't squeeze into a caption...that's exactly what our substack is!
once a week (Mondays), straight to your inbox!  subscribe below ⬇️

https://substack.com/home/post/p-202891078

Chapters

00:00: introduction to the episode
00:35 – how Waxhead started (the eczema story behind it)
11:31 – what's actually in chemical sunscreen
13:18 – the Hawaii reef ban + "regrettable substitution"
23:51 – aerosol sunscreen & the "secondhand smoke" comparison
31:55 – benzene contamination findings in aerosol sunscreens
34:31 – the white cast conversation- "the badge of smart living"
38:21 – chemical vs. mineral sunscreen, explained simply
39:24 – how zinc oxide actually works (band-gap absorption)
41:33 – nano vs. non-nano zinc oxide
47:39 – SPF water resistance & FDA regulations
53:02 – the SPF math — why 30 is basically always enough
57:11 – tattoos, melasma & mineral sunscreen
1:00:52 – nitric oxide, vitamin D & finding balance
1:02:42 – rapid fire round
1:03:23 – what the sunscreen industry doesn't want you to know

Mentions

EWG.org

Black Girl Sunscreen

  • Shannon Kenner is a co-founder of Waxhead Sun Defense, where he leads finance and operations for the mineral sunscreen company built on food-grade ingredients and non-nano zinc oxide. With a background in analytics, compliance, fraud prevention, supply chain, and operational systems, Shannon helped build Waxhead after his family struggled to find sunscreen gentle enough for their son’s severe eczema and tough enough for real outdoor use.

    👀 you can find Waxhead Sun Defense:

    + on the web gowaxhead.com
    + on instagram @gowaxhead
    + on FacebookWaxhead Sun Defense
    + on YouTube /@gowaxhead

👀 you can find us:

🎥 watch → YouTube
👂 listen → spotify, apple podcasts, amazon music & iheartradio
💌 read → substack (weekly emails & all the extras!)

🤩 follow along with us on our socials!
instagram → @crunchypod
facebook → crunchypod
youtube → @crunchypod
pinterest → /unapologeticallycrunchy

📝 on the web → crunchypod.com
🛍️ shop merch → unapologeticallycrunchy.com

💫 connect with marguerite →
@unapologeticallycrunchy + unapologeticallycrunchy.substack.com

💫 connect with karl → uncommonstandpoint.substack.com

💜 peace, love + CRUNCH!

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