Understanding Retinoids: Acne and Anti-Aging

This chapter explores the significance of retinoids in skin health, particularly their roles in treating acne and addressing anti-aging concerns. It compares various forms of retinoids, emphasizing the advantages of adapalene and discussing the importance of consistent use for effective skin improvement.

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What if everything you thought you knew about skincare, acne, anti-aging, and hair loss was either outdated (or just plain wrong?)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

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