Question: What is on bath salts packaging to avoid drug laws?
Sentence (from "4'-Methyl-α-pyrrolidinopropiophenone"): Although it has never achieved the same international popularity as its better-known relations α-PPP and MDPV, 4-MePPP is still sometimes found as an ingredient of grey-market "bath salt" blends such as "NRG-3".
Relevant evidence: Yes