Rated 4.8 (126)
GREASE THE JOINTS, KEEP THE MACHINE RUNNING
30 Servings Per Bottle: Supports joint comfort, flexibility, and range of motion.*
- Built For The Tools You Can't Replace - Knees, Shoulders, Elbows & Back.
- $0.99 Per Day
- Supports Joint Comfort & Mobility*
30-Day Money Back Guarantee
Take it for 30 days. If the bottle isn't worth reordering, email us and we refund the order. No shipping the bottle back.
WHAT TWO CAPSULES A DAY BUYS FOR YOU
Your body is the tool you can't replace
You can buy another impact driver. Knees, shoulders, elbows, and back are the ones that have to last as long as the career does. ZERK supports overall joint function.*
For the guys who'd rather stay ahead of it
Most men wait until something makes them do this. Two capsules a day is the version you can actually keep up, for years, without thinking about it.
Hour nine is the one that counts
Getting off your knees at the end of the day shouldn't be the hardest part of it. ZERK supports joint flexibility and mobility.*
No shellfish in the glucosamine
GlucosaGreen® is fermented from a plant source instead of shellfish shells. Most glucosamine on the shelf isn't, which matters if you've ever had to put a bottle back down over it.
YOUR FIRST BOTTLE Day By Day
Maintenance, not a miracle.
Day One
You take your first two.
✓ Two capsules with 6–8 oz of water, alongside the morning coffee.
✓ Nothing dramatic happens on day one.
✓ Anybody who tells you otherwise is selling something.
Week One
The habit sets.
✓ The bottle lives next to the coffee maker.
✓ Two capsules is now part of leaving the house.
✓ This is roughly where you stop having to remember to take it.
Week 3
You know your rhythm.
✓ You're taking it every day, not just the heavy ones.
✓ You've stopped thinking about whether it's working.
✓ This is a daily support formula, and daily is where it does its work.*
Week 4
End of the Bottle.
✓ Sixty capsules gone. Thirty days.
✓ You decide whether it stays in the rotation.
✓ If it doesn't, you're still inside the 30-day guarantee.
YOU GREASE THE MACHINE DO THE SAME FOR YOUR BODY
Every joint on a machine has a fitting for a reason. Here's the same logic, applied to the body - the one tool you can't replace.
You already understand preventive maintenance better than most people ever will. You hit the fittings before they need it, not after something starts squealing. You change the oil on hours, not on feelings. Nobody has to explain to you why waiting costs more than staying ahead.
Then you go home and apply none of that to your body. Twenty years of ladders, kneeling on plywood, overhead work, and climbing in and out of a truck forty times a day is load, and it's daily. It's the exact kind of wear you'd schedule around on any piece of equipment you owned.
ZERK is built to be the daily pass. MSM is a sulfur compound that's been in joint formulas for decades. GlucosaGreen® glucosamine HCl is the fermented, plant-derived version instead of the shellfish kind. Turmeric root and Boswellia serrata are two of the most-used botanicals in this category, and ours are standardized - 65% boswellic acids for the boswellia, with black pepper extract at 95% piperine alongside the turmeric. White willow bark and hyaluronic acid round it out. Together the formula supports joint comfort, flexibility, and range of motion.*
The point isn't a dramatic morning. It's that you take two capsules with your coffee, every day, for years, and you keep doing the work you're good at. Supplements for work, not for workouts. You rely on your body to earn and you can't earn if you're hurt or broken.
- You Know When It Hurts
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The first ten steps out of bed
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Getting off your knees at hour nine
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30th trip up the ladder before 8am
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Cold morning, hands stiff on the wheel
Disclaimer: *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
WHAT'S ACTUALLY IN THE BOTTLE
Six Ingredients, One Serving
MSM, glucosamine, turmeric, boswellia, white willow bark, and hyaluronic acid. 1 bottle instead of 5.
60 Capsules For 30 Full Days
Two capsules a day for a month, with no short bottle at the end. One order, one month, no math.
Standardized Extracts
Boswellia standardized to 65% boswellic acids, black pepper extract to 95% piperine. Standardized means the active level is specified on the label.
Shellfish-Free Glucosamine
GlucosaGreen® is vegetal glucosamine HCl, fermented rather than pulled from shellfish shells. Most glucosamine on the shelf is the shellfish kind.
INGREDIENTS THAT DELIVER
Six ingredients. Here's what each one is doing.
MSM
MSM has been used in joint formulas for decades and it's the volume ingredient here. It's part of the base this formula is built on.
GlucosaGreen® Glucosamine HCl
Glucosamine is the best-known ingredient in the joint category. This is the plant-fermented version, so there's no shellfish in the bottle.
Turmeric Root + Black Pepper
Turmeric root is one of the most widely used botanicals in this category. Black pepper extract is paired with it here, standardized to 95% piperine.
Boswellia Serrata
Boswellia is a resin extract, and the standardization is the part worth reading. 65% boswellic acids means the active level is specified on the label.
White Willow Bark
One of the oldest botanicals still used in joint formulas. It rounds out the botanical side of the blend alongside turmeric and boswellia.
Hyaluronic Acid
Hyaluronic acid shows up in joint products often enough that guys look for it on the panel. It's in here, and it's on the label.
MSM
MSM has been used in joint formulas for decades and it's the volume ingredient here. It's part of the base this formula is built on.
GlucosaGreen® Glucosamine HCl
Glucosamine is the best-known ingredient in the joint category. This is the plant-fermented version, so there's no shellfish in the bottle.
Turmeric Root + Black Pepper
Turmeric root is one of the most widely used botanicals in this category. Black pepper extract is paired with it here, standardized to 95% piperine.
Boswellia Serrata
Boswellia is a resin extract, and the standardization is the part worth reading. 65% boswellic acids means the active level is specified on the label.
White Willow Bark
One of the oldest botanicals still used in joint formulas. It rounds out the botanical side of the blend alongside turmeric and boswellia.
Hyaluronic Acid
Hyaluronic acid shows up in joint products often enough that guys look for it on the panel. It's in here, and it's on the label.
WHAT MAKES TRADE FUELSTAND ABOVE THE REST
Superior science. Higher standards. Proven outcomes.
WHAT MAKES TRADE FUELSTAND ABOVE THE REST
Superior science. Higher standards. Proven outcomes.
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TRADE FUEL
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OTHER BRANDS
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Made For A Body That Earns
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Six Actives In One Serving
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60 Capsules, A Full 30 Days
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Standardized Botanical Extracts
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Shellfish-Free Glucosamine
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No Artificial Additives
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TRY 100% RISK-FREE
Buy a bottle. Take it for 30 days. If it doesn't earn its spot next to the coffee maker, email us inside those 30 days and we refund what you paid. You do not have to ship the bottle back and you do not have to explain yourself.
SHOP NOWTRY 100% RISK-FREE
Buy a bottle. Take it for 30 days. If it doesn't earn its spot next to the coffee maker, email us inside those 30 days and we refund what you paid. You do not have to ship the bottle back and you do not have to explain yourself.
SHOP NOWFREQUENTLY ASKED QUESTIONS
When should I take it?
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Two capsules daily with 6–8 oz of water. Most guys take them in the morning with coffee, because that's the part of the day that never changes. Time of day doesn't matter as much as taking them every day.
Why two capsules instead of one?
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There are six actives in this formula. Getting all of them in at a level worth putting on a label takes two capsules, so that's the serving. Don't exceed it.
Is there shellfish in it?
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No. The glucosamine is GlucosaGreen® vegetal glucosamine HCl, which is fermented from a plant source rather than made from shellfish shells. Most glucosamine on the shelf is shellfish-derived. Note that the capsule itself is gelatin, so this one isn't vegetarian.
How is this different from the joint pills at the drugstore?
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Most of those are glucosamine and chondroitin and not much else, with shellfish-derived glucosamine. This has six actives, standardized extracts where standardization matters, and the plant-fermented glucosamine instead.
Can I take it with Trade Fuel 'REBUILD' or Trade Fuel Hydration Powder?
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Yes. They do different jobs at different ends of the day - ZERK with your morning coffee, hydration through the shift, REBUILD at night. If you're on medication or have a condition, run the stack past your doctor first.
Does it upset your stomach?
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Most guys take it without a problem, and taking it with water and food helps. One thing worth knowing: white willow bark is related to aspirin, so if you're on blood thinners, take aspirin daily, or have a known sensitivity to it, check with your doctor before starting.
How fast does it ship?
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Orders are processed and delivered in 5-10 business days. Free shipping on orders over $100.
What if I don't like it?
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Email us inside 30 days of your order and we refund it. You keep the tub. No return shipping, no form to fill out.
Disclaimers
Warning:
Do not exceed recommended dose. Pregnant or nursing mothers, children under the age of 18, and individuals with known medical conditions should consult a physician before using this or any dietary supplement. KEEP OUT OF THE REACH OF CHILDREN. DO NOT USE IF SAFETY SEAL IS DAMAGED OR MISSING. STORE IN A COOL, DRY PLACE.
Allergen statement:
[ALLERGEN STATEMENT] — see note below.
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.