Horumon (ホルモ, Hormone) is a powerful technique created by Tosen. To use this technique Tosen would have to use both Life Return and his devil fruit's ability to act upon his cells' DNA and completely change it's molecule's structure, giving certain cells such as skin cells the ability to produce hormones. After doing this Tosen would slightly lengthen his nails and harden them, he would then pierce the target's body with his finger and inject Hormones that his cells has produced into their blood stream, causing positive or negative effects on their bodies depending on the type of hormone that was injected.