Skin & Hair Health: What Actually Works (and What Doesn’t) w/ Carter "Eviba" Gottlieb

What if everything you thought you knew about skincare, acne, anti-aging, and hair loss was either outdated (or just plain wrong?)

In today’s solo-hosted episode of The Fitness Stuff (for Normal People), Tony sits down with Carter Gottlieb (aka Eviba Carter): cosmetic chemist, MD/PhD candidate, Chief Product Officer at HelloSkin, and one of the most respected voices in the skincare science world.

This is not your typical skincare episode. Carter brings rare depth and clarity to topics normally clouded by hype, influencer noise, and cosmetic marketing.

Together, they explore:

• The truth about acne: what causes it, why most “quick fixes” make it worse, and what actually works

• Retinoids vs. Retinol vs. Adapalene: the gold standards for acne and anti-aging

• The real reason Korean and European sunscreens outperform American ones (and how to get them)

• Hair loss 101: minoxidil, finasteride, microneedling, and what makes hair look thicker

• Why your skin is a mirror of internal health, and how lifestyle factors like stress, sleep, and diet matter more than you think

• The skin barrier, slugging, in-clinic vs. at-home treatments, and what to skip entirely

• The future of skincare technology, and how HelloSkin is pushing it forward

• And yes, the story behind Carter putting a microchip in his hand

Whether you’re battling acne, trying to keep your skin healthy as you age, or just want to stop wasting money on the wrong products, this episode cuts through the BS and gets straight to what actually works, backed by science, not hype.

Carter's Recommendations & Website

Carter's Recommended Korean Sunscreen

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Timestamps:

(2:05) Day-of Acne Fixes

(15:18) Skin-care vs. Acne-care

(37:00) Skin-care + Anti-aging Essentials

(48:00) Korean Sunscreen vs. USA Sunscreen

(51:10) Tanning Peptides

(01:01:24) Carotenoids Supplements For Skin Glow + UV Protection

(01:14:44) Skin Care Routine Fundamentals

(01:29:00) Slugging

(01:39:30) Rise And Fall of Eviba Skincare

(01:53:25) Hair Loss + Thicker Hair Essentials