What Happens When A *Pharmacist* Decides To Start A *Supplements* Company (WARNING: Be Careful With Your Creatine Gummies!)
Ben Greenfield
Jul 4, 2026
Episode description
Full show notes: https://bengreenfieldlife.com/zenospodcast
In this episode with Mazen Karnaby, founder of Zenos Health, you'll hear how a pharmacist who spent 17 years filling prescriptions behind the counter ended up building one of the more rigorously formulated supplement lines on the market. You'll hear his full story, including a melanoma diagnosis that reframed his entire approach to health, get into the formulation details behind his most talked about products, from the creatine gummies people get genuinely addicted to, to UriZen for kidney and urinary tract support, VZen for the vaginal microbiome, and BeautyZen for skin and hair, and hear about Zenos Alive and the Zenos Health Summit, a new wellness festival and conference coming to Riyadh, Saudi Arabia in 2027.
Mazen Karnaby is a US trained pharmacist and the founder of Zenos Health. After a melanoma diagnosis several years ago, his focus shifted from reactive care toward prevention and long term resilience. He co-owns Cedra Pharmacy locations across California, Texas, and New York, and built Zenos Health around science backed formulations designed to take the guesswork out of supplementation. Find him at zenoshealth.com.
Use code BENGRF for 10% off at bengreenfieldlife.com/zenos.
Join Ben at Zenos Alive and the Zenos Health Summit in Riyadh, Saudi Arabia in 2027.
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Mindsip insights from this episode:
Tailor supplements to personal biomarker data
You should build your supplement regimen based on personal biomarker data from blood, urine, and stool tests rather than following general health trends.
Drink creatine smoothies immediately to maximize benefits
You should drink creatine mixed with water immediately, as letting it sit allows the creatine to convert into creatinine, a less useful waste product.
Understand value of licensed ingredients in supplements
Supplements use 'licensed ingredients' like Creapure or KSM-66, which are specific, studied forms of a nutrient that guarantee purity and efficacy, justifying their higher cost.
Avoid creatine gummies due to purity and stability issues
Many creatine gummies are problematic because the creatine is often impure, unstable in the gummy form, and degrades into ineffective creatinine.
Utilize allulose to stabilize insulin sensitivity without bloating
The sweetener allulose is used in some health products because it doesn't cause the bloating of sugar alcohols and may even help stabilize insulin sensitivity.
Proactively support kidney health with daily supplements
Instead of waiting for a UTI, you can take a daily supplement with ingredients like cranberry extract and dandelion root to proactively support kidney and urinary tract health.
Create supplements that meet high standards for efficacy and dosing
A pharmacist-founder created his supplement line not for profit margins, but to meet high personal standards for efficacy and optimal dosing after a health scare.
Utilize oral probiotics to balance vaginal microbiome
An oral probiotic can influence the vaginal microbiome through the 'gut-vagina axis,' helping to balance flora and reduce issues like UTIs, odor, and dryness.
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