Yoki Suppressants

Yoki suppressants are a poisonous substance which a Claymore ingests to return their eyes to normal color and mask their aura in exchange for loosing their yoki-sensing ability and strength. As the claymore's yoki breaks down the suppressant, it weakens the claymore and makes their eyes and hair return to their normal color. Overdosing on yoki suppressants is never lethal for a claymore but can leave a claymore as susceptible as a human to paralyzing agents. If an awakened ate yoki suppressants, they would be knocked out due to the sudden suppression of their aura. If a human ate a suppressant, they would die almost instantly.
The Organization makes yoki suppressing pills out of a multitude of poisons found around Tolaine. According to Victoria, there are 36 types of toxins and 11 poisonous herbs used to make suppressants.  The suppressants are originally a liquid but are left to dry to become the solid pills. 
Some ingredients of the pills:
*Fresh venom from a Mucha rattlesnake
*Venom from a Mucha viper
*Scorpion toxin
*Toxic cactus flowers
*Some part of a gut worm
The Black Card Brigade also has a less refined or effective suppressant but also has an anti-suppressant pill which negates the suppressant's effects. Yoki suppressants can be found in a diluted, liquid form and can be dropped into the eyes to hide the eye color but not the aura or the strength of a claymore. These drops are made by Raya and Maya.
The anti-eye, no 10, of each generation knows how to make yoki suppressants.
"Stalking" Medea had to constantly take suppressants since her yoki kept on rising in order to avoid awakening. When she died, the Retrieval Squad used her body to improve the pills.
Category:Terminology