Full show notes: BenGreenfieldLife.com/prologue

In this episode, stem cell scientist Dr. Yaron Fuchs reveals how an accidental lab finding, a compound that turned every hair white, led to Prologue, a peptide serum built to help you keep the natural hair color you still have. You’ll hear why hair goes gray in the first place, how the stem cells that run your pigment “factory” decide whether to live or die, and how his team shrank a large protein into six peptides small enough to reach the follicle.

You’ll also learn the surprising story behind finasteride, from castrated men who never went bald to a rare mutation in the Dominican Republic, and why hair loss medicine has barely advanced in decades. We dig into what his clinical study found, when to start treatments if you want to stay ahead of your first grays, and whether a red light helmet has any real benefits for hair. You’ll also hear how I fit the serum into my morning routine, and how Dr. Fuchs’ lab can grow and test your own hair follicles from a urine sample.

You can claim your invite to the Prologue Hair Pigment Longevity Serum presale here (limited to 500 invites).

My new book is out now, and you can order Precepts: A 100-Day Guide to Living Fully, here.

Episode Sponsors:

BON CHARGE: BON CHARGE is a holistic wellness brand whose products can help you sleep better, recover faster, balance hormones, and so much more. Go to boncharge.com/GREENFIELD and use coupon code GREENFIELD to save 15%.

Hiya: Give your kids the full-body nourishment they need to grow into healthy adults. Get 50% off your first order of their best-selling children’s vitamin. To claim this deal, you must go to hiyahealth.com/BEN (it is not available on their regular website).

Just Thrive: The Just Thrive Gut Essentials Bundle pairs a probiotic clinically proven to arrive 100% alive in your gut with Digestive Bitters to support digestion. Visit justthrivehealth.com/BEN and save 20% with promo code BEN.

Dr. Murray Natural Products – ThymoQuin®: ThymoQuin® is a clinically researched black seed oil formulated to support healthy cortisol levels and improve resilience to everyday stress. Visit doctormurray.com/ben and use code BEN25 for 25% off all Dr. Murray Natural Products.

BIOptimizers Magnesium Breakthrough Advanced 10: BIOptimizers’ newest magnesium formula combines 10 bioavailable forms of magnesium to support sleep, recovery, stress, and metabolic health. Go to bioptimizers.com/ben and use code ben15 for 15% off any order.

Nuchido: Support healthy aging at the cellular level with Nuchido TIME+, a science-backed supplement designed to optimize your body’s NAD metabolism. Visit BenGreenfieldLife.com/Nuchido and use code BEN20 to save 20% on your order.

See omnystudio.com/listener for privacy information.

The NEW Peptide That Keeps Your Hair From Going Gray (& The Future Of NOT Losing Your Hair!), With Dr. Yaron Fuchs of Prologue.

Boundless Life

The NEW Peptide That Keeps Your Hair From Going Gray (& The Future Of NOT Losing Your Hair!), With Dr. Yaron Fuchs of Prologue.