Free guides

Copy RUNMASTERY and get 20% off your first order on the whole Skratch Labs range: hydration mix, high-carb fuel, chews and recovery.
Hydration Sport Drink Mix, 20 servings, with the code
RUNMASTERY
The code applies automatically through this link. If it does not, paste it at checkout. 20% off your first order on the whole Skratch range, one use per customer.
How it works
Because it is a first-order code, it pays to build one proper order instead of testing with a single packet. A 20-serving bag of Hydration Sport Drink Mix drops from $23.95 to $19.16, and the 60-serving bag from $57.95 to $46.36.
If you run longer than an hour, sweat a lot or race in the heat, start with the Hydration Sport Drink Mix. Training for a half or a marathon? Add Super High-Carb for your long runs. Not sure which flavors you like? The Sample Pack is the cheapest way to find out. The full breakdown is in our guide to the best Skratch products for running.
Skratch Labs started in pro cycling, when sports physiologist Allen Lim made his own drink for riders with stomach problems. It is built to be easy on the gut, which matters more in running than on the bike.
Prices with 20% off your first order. Every link applies code RUNMASTERY automatically.
RUNMASTERY. It gives 20% off your first order on the whole Skratch Labs range at skratchlabs.com. Through our link it is applied automatically.
Yes, it applies to your whole first order, including hydration mixes, Super High-Carb, Energy Chews, bars and recovery.
No. It is one use per customer, on your first order. Build one complete order to get the most out of it.
Paste RUNMASTERY into the discount field at checkout. If the cart already shows a different discount, only one code may apply, so check which one gives the bigger saving.
RUNMASTERY gives 20% off your first Skratch Labs order, applied automatically through our link.
RUNMASTERY
The code applies automatically through this link. If it does not, paste it at checkout. 20% off your first order on the whole Skratch range, one use per customer.
Affiliate disclosure: Run Mastery earns a commission when you buy through the Skratch Labs links on this page, at no extra cost to you. The discount is 20% off your first order with code RUNMASTERY. Prices in USD at the time of writing (October 2026), check skratchlabs.com for your region. Run Mastery is not affiliated with LMNT or Liquid I.V.