Collection: Synthetic Pee 3oz Kits

Every Upass synthetic pee kit is a complete 3 oz system: a premixed bottle, two Hot Sacks air-activated hand warmers, and a temperature strip mounted on the bottle. Nothing to mix, nothing to buy separately. Warm it, check that the strip reads 90 to 100 degrees F, and it is ready.

The 3 oz volume matters. It is enough for standard sample cups with margin to spare, while staying compact enough to warm quickly and hold temperature on a single hand warmer.

Safeguard Labs has manufactured Upass continuously since 2009, 17+ years. Upass is independently lab tested, and every batch is quality-checked in-house. Upass is in stock, and orders placed by 3:00 PM PT Monday to Friday ship the same business day, securely packaged.

Related reading: what a kit with a warmer contains, the official heating instructions, and the chemical profile explained.