Daily packs at doses that match published research. Coaching included. Starting at $3.23/day.
Three Stacks. Real Doses. Pick Your Priority.
Each stack is 3-5 ingredients at doses that match published research, delivered in daily packs with your name on them. Coaching and accountability included with every subscription.
Sleep Stack
25-day coaching sequence
Human support within 1 business day
Energy Stack
25-day coaching sequence
Human support within 1 business day
Stress Stack
25-day coaching sequence
Human support within 1 business day
What real doses actually cost
Research-referenced doses require more raw material per pack. 600mg of ashwagandha costs significantly more to manufacture than 16mg. The supplement industry keeps prices low by keeping doses low. We chose meaningful amounts — and that costs more to manufacture. The price difference is the dosing difference.
Not sure which stack is right? The ESEIS Assessment helps match you to the best-fit stack for your pattern in 60 seconds.
Take the 3-Minute AssessmentLooking for digestive, vitality, or longevity support? See all 6 stacks
What You Actually Get
| Typical Supplements | Duke of Herbs | |
|---|---|---|
| Format | ✗ Multiple bottles to manage | ✓ One daily pack, your name on it |
| Dosing | ✗ Undisclosed "proprietary blends" | ✓ Every dose printed on the label |
| When you miss a day | ✗ Nobody notices | ✓ You get a check-in |
| Support | ✗ FAQ page | ✓ Coach responds within 1 business day |
| Personalization | ✗ One formula for everyone | ✓ Matched to your ESEIS profile |
| By day 14 | ✗ Most buyers have stopped | ✓ Coaching intensifies |
The Right Dose Is Only the Beginning
The best stack in the world doesn't help if it sits in a cabinet. Every Duke of Herbs subscription includes the system designed to support follow-through.
Your Daily Packs
One tear-open packet every morning. Your name on it. Research-referenced doses inside. No bottles to juggle. No pills to count. One decision instead of four.
Your Daily Coach
25 days of daily check-ins matched to your progress. Day 3 guidance is different from Day 14 — because Day 14 is where the wheels come off and you need someone in your corner.
Your Human Support
When patterns shift — stress spikes, sleep changes, adherence drops — Coach Brian and his team typically respond within one business day. Not a chatbot. Not a help desk.
25 Years of Coaching Men Through Exactly This
Duke of Herbs didn't start with a supplement formula. It started with 25 years of watching men over 40 take products and get nowhere — because the products weren't formulated at meaningful levels, and there was nobody to support follow-through.
The ESEIS assessment wasn't invented for marketing. It was developed through decades of pattern recognition — observing which inputs determined which outcomes across thousands of real men.
This isn't a brand with a founder story bolted on. The founder's methodology IS the product.
What Consistency Looks Like
Built With Full Doses — On Purpose
Most supplement companies use "proprietary blends" to hide how little of each ingredient is actually inside. We took a different approach.*
30-Ingredient Capsule
3-5 Ingredients. Full Doses.
When a label says "Proprietary Blend," the company is legally allowed to list every ingredient without telling you how much of each is inside.
You see 30 impressive names. You assume each one is present at a meaningful level. They're counting on that assumption.
Duke of Herbs prints every dose on the label. No blends. No hiding. Just the math.
Try this right now: Go to your cabinet. Find any bottle with "Proprietary Blend" on the label. Look at the total weight. Count the ingredients. Divide. That number is what you've been paying for.
Why "Proprietary Blend" Should Make You Ask Questions
When a supplement company lists a "proprietary blend" on the label, they're using a labeling practice that allows them to name every ingredient without disclosing how much of each one is in the formula. They only have to list the total weight of the blend.
So you see 30 impressive ingredients and a total of 500 milligrams. You assume each ingredient is present at a meaningful level. That assumption is what the economic model depends on.
Putting many ingredients at small amounts is less expensive to manufacture. The label looks more impressive. And when you don't notice a difference after two weeks, you don't question the product — you question yourself. That cycle — buy, try, stop, repeat — is how the industry keeps growing.
That cabinet full of half-finished bottles isn't evidence you lack discipline. It's worth asking whether the products were formulated at the amounts that published research actually uses.
Duke of Herbs takes a different approach. Fewer ingredients. Doses that match amounts referenced in published research. Every milligram printed on the label. No proprietary blends. Our labels look simpler — and that simplicity is the point.
Not sure which stack is right? The ESEIS-25 Assessment identifies your #1 bottleneck across 5 interconnected systems and matches you to the best-fit stack in 3 minutes.
Take the Free AssessmentBefore You Decide
Can I cancel anytime?
What if I'm already taking supplements?
How is this different from what I can buy on Amazon?
Why does it cost more than drugstore supplements?
How long until I notice anything?
60-Day Satisfaction Guarantee
Try any stack for 60 days. If you're not satisfied — for any reason — full refund. Even if you've opened every pack. No questions. No guilt trips. No "retention specialists" reading from a script.
Cancel anytime with one click. We'd rather lose a customer than trap one.
Choose Your Stack. Start With Real Doses.
3-5 ingredients at the amounts published research actually uses. Daily packs with your name on them. A coach who notices when you stop. 60-day guarantee. Starting at $3.23/day.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease. The ESEIS-25 Assessment is an educational tool designed to help identify areas of focus, not a medical diagnostic. Consult with a healthcare professional before starting any new supplement regimen, especially if you have pre-existing conditions or are taking medication. Individual results vary. Dose comparison is illustrative and based on mathematical division; actual proprietary blend formulations vary by manufacturer. "Research-referenced doses" refers to amounts consistent with those used in published peer-reviewed studies; this does not constitute a claim that these specific products have been clinically tested. Coaches provide wellness education only and are not licensed medical professionals.