The Root Causes Of Hair Loss, Acne & Aging—What's Actually Worth Your Money + What's Total BS

In this comprehensive three-part episode of The Liz Moody Podcast, host Liz Moody is joined by board-certified dermatologist Dr. Samantha Ellis to explore the root causes of hair loss, acne, aging, and skin barrier damage, separating science from skincare myths. The conversation begins with a deep dive into sunscreen, emphasizing that applying at least a quarter teaspoon is essential for full protection and can even reverse signs of photoaging. Dr. Sam debunks common misconceptions, revealing that adult acne is often driven by hormonal shifts (such as in perimenopause or PCOS), stress, and diet—not poor hygiene—and recommends starting with over-the-counter adapalene before turning to prescription tretinoin, which is more effective than retinol for both acne and aging. The discussion highlights the dangers of over-exfoliation and improper layering of actives, while championing in-office treatments like Fraxel lasers and microneedling for meaningful, long-term results. On aging, Dr. Sam stresses the importance of mitochondrial health, recommending supplements like urolithin A (e.g., MitoPure) and lifestyle changes such as reducing alcohol and prioritizing sleep. She also addresses hair loss as a symptom of underlying issues—especially low ferritin, thyroid dysfunction, or stress-induced telogen effluvium—while cautioning against ineffective or harmful supplements like biotin and promoting evidence-backed solutions like minoxidil, finasteride, spironolactone, and red light therapy. The episode closes with practical, life-enhancing advice: dermaplaning for instant radiance, switching to safer cleaning products like Branch Basics to reduce toxic exposure, and using educational platforms like Masterclass as a meaningful alternative to mindless scrolling. These actionable insights are grounded in science and aimed at empowering listeners to make informed, sustainable choices for their health and beauty routines.