Build lasting strength by knowing your numbers
Phil's two recommended lab panels track the markers behind your training.
Start with the essentials or track your progress over time
Both panels include a single lab draw at 2,000+ locations, with no insurance or doctor’s visit needed.
Performance Check-Up Panel
- Full hormone profile with testosterone, estradiol, SHBG, prolactin, and DHEA-S
- Complete thyroid, metabolic, lipid, vitamin D, and iron markers in the same lab draw
- Phil's pick for tracking your progress between training blocks
Panel for
Essential Labs
- Core bloodwork covering testosterone, thyroid, metabolic health, lipids, and blood count
- Includes liver, kidney, and electrolyte markers
- The most affordable way to see where you stand today
| Feature | Performance | Essential |
|---|---|---|
| Hormones | Full hormone profile | Testosterone only |
| Thyroid | TSH, Free T3, Free T4 | TSH |
| Vitamin D and iron | Included | Not included |
| Best for | Tracking your training | A first look at your health |
Your labs show you what your training can’t
How you feel in the gym only tells part of the story. Bloodwork gives you a clear look at the hormones, metabolic markers, and nutrient levels behind your energy, recovery, and progress, so you can make decisions based on data instead of guesswork.
See where you stand
Get a clear snapshot of your hormones, metabolism, and overall health from a single lab draw.
Track your progress
Retest between training blocks to see how your markers change over time.
No insurance needed
Order online, visit a lab near you, and get your results by email with no doctor’s visit required.
Phil Daru × Marek
Phil Daru is a strength and conditioning coach and former fighter who has trained world-champion fighters, Olympic athletes, and professional competitors across combat sports and beyond. As the founder of Daru Strong, he has mentored thousands of coaches and athletes through a system built on science, discipline, and strength that lasts.
Phil believes real performance starts with understanding what's happening inside your body, and these two lab panels are where he tells his athletes and community to start.
Disclaimer: Phil Daru is a Marek Health affiliate and is compensated by Marek. He is not a licensed healthcare professional, and his recommendations are not medical advice.
How it works
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Order your panel
Check out with code DARU and we'll email your lab order.
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Get your lab draw
Visit any of 2,000+ lab draw locations with no insurance or doctor's visit needed.
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Get your results
Your results arrive by email, typically within 14 business days.
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Retest and track
Order again with code DARU every few months to see how your markers change as your training evolves.
Lab orders are currently unavailable to residents of NY, NJ, RI, and HI.
Save 10% on every lab order with Phil's code
Enter DARU at checkout to save 10% on either panel, and you can use it on every order. The code can't be combined with other promo codes.
Questions
Do I need insurance?
No insurance is needed because you pay once, visit a lab, and get your results, and HSA/FSA cards are accepted through TrueMed.
Where do I get my blood drawn?
You can visit any of 2,000+ partnered lab draw locations across the US, and we email your lab order form and prep instructions as soon as you order.
How do I use Phil's code?
Enter DARU at checkout to get 10% off either panel, and you can use it on every order.
Which panel should I choose?
The Performance Check-Up is Phil’s pick because it includes a full hormone profile, complete thyroid markers, and vitamin D and iron, while the Essential Lab Panel covers core bloodwork at a lower price.