

Sweat Patch Refills
Sweat Patch Refills are the single-use adhesive patches required for each Nix Hydration Biosensor session. Attach to your bicep before workouts, clip the rechargeable pod onto the patch, and the patch collects sweat for analysis.
Each patch is good for one workout session only and must be replaced. Sold in packs of 4 for $25, making each patch cost about $6.25—significantly cheaper than a professional lab sweat test.
Best used strategically for key training sessions or periodically to check your hydration strategy rather than every single workout. The data you get from each session builds your personal sweat profile over time.
HSA/FSA eligible
Buy this with your HSA/FSA.
Look for our sticker on eligible items!
Learn how to pay with HSA/FSASingle-use sweat collection patches
Compatible with Nix Hydration Biosensor pod
4 patches per pack
Adhesive attaches to bicep
Each patch good for one workout session
"They work great especially on my long run or bike workouts for long duration help me keep on top of my hydration."

Nix
Hydration biosensor for smarter training.




