Serum Bag: What It Does

Updated 2026-11-06

Serum Bag is 180 keys on the community list, tax 4,750 gems.

The pass increases how many titan serums you can carry. The ceiling is not a single integer in the notes I trust, because prestige changes the ceiling, and prestige for serum trading is itself split. One trading-table cell says Prestige 2. The prestige article, the patch record, and the Colossal Serum article say Prestige 3. A bag purchased at Robux does not vote in that argument. You can own the bag and still be on the wrong side of the gate.

A second column in the price file once showed a different token count next to this name. I kept the numeric value column, 180, and I did not also print the other token string. Two numbers on one row is how a wiki starts a rumor. Methodology explains that choice.

Gem tax at 4,750 is its own ladder, not the 5,000 gem serum-item tax and not the family ladder. When you receive the bag in a trade, that gem line is the one the wiki's receiver-pays rule would point at. Robux you already spent is a sunk store receipt. Traders are pricing the pass as an item.

Memory Bag is the neighbor with no Robux figure in the notes, so it stays a row. This page is only Serum Bag, because the search is 'what does it do'.