STACK20 Shop stacks →Football, hoops, the gym floor or a HYROX start line. Pick your goal and we send the five supplements that go with it, in one box, every month. No guessing. No shelf of half-used tubs.
Official partner · American Pro Rugby
Tap your sport. We'll point you to the stack most athletes like you start with. Not sure? Start with Performance.
Every stack is five full-size products for one price, chosen to work together. The crossed-out price is what the same five cost one by one in our store.
Gym · CrossFit · HYROX · field sports
Creatine, BCAAs, nitric oxide, beetroot and hydration for heavy training weeks.
$206.87 if you bought the five separately
Get the Performance Stack →First box 20% off · STACK20
Rugby · football · hockey · combat
Creatine hydration, whey isolate, BCAAs, pre-workout and beetroot for game weeks.
$256.88 if you bought the five separately
Get the Rugby Stack →Not included in STACK20
Cutting phase · weigh-ins · off-season
Energy, hydration and focus for the weeks you are leaning out.
$189.68 if you bought the five separately
Get the Shred Stack →First box 20% off · STACK20
Baseball · golf · game-day focus · work
Five products for mental energy and focus, for work days and game days.
$248.88 if you bought the five separately
Get the Focus Stack →First box 20% off · STACK20
Masters athletes · recovery years
NMN, NAD+ and mushrooms: daily support for healthy aging.
$219.65 if you bought the five separately
Get the Longevity Stack →First box 20% off · STACK20
Skin · hair · nails
Collagen and hair, skin and nails strips plus a 3-step skin routine.
$167.88 if you bought the five separately
Get the Glow Stack →First box 20% off · STACK20
Tap your sport or browse the six stacks.
Five products ship to your door. Free in the US.
Switch, skip or cancel from your account. We're not GNC.
Clann13 started in rugby: long seasons, heavy contact, short recovery windows and no time to research every supplement on the shelf. So we built stacks around the goal, not the product.
The same problem shows up in every sport, from Friday-night football to the CrossFit box to the HYROX start line. Today we're the official supplement partner of American Pro Rugby, and every stack follows the same idea: one goal, five products, one box.
Five full-size products picked for one goal. Each stack lists every product, and every label shows exactly what's inside and how much.
No. Clann13 started in rugby, and the stacks are built for athletes in every sport: football, basketball, baseball, hockey, soccer, track, bodybuilding, CrossFit, HYROX and more. Pick by your goal.
Yes. Skip a box or cancel any time from your account. No phone calls, no hoops.
Shipping is free on every stack in the US.
Enter STACK20 at checkout to take 20% off your first box. It works on every stack except the Rugby Stack.
Each box is about a month of daily use for one person. The exact servings are on every label.
Yes. Clann13 products are third-party tested and made in the USA.
No dietary supplement is FDA-approved. Supplements are regulated as foods, and the statements on this site have not been evaluated by the FDA. Talk to your doctor before starting any supplement, especially if you take medication.
Free US shipping on every stack. 20% off your first box with code STACK20.
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