User blog comment:Registered contributor/New Tonic Ideas/@comment-1845179-20100323140311

Resiliance (Prerequisite Armored Shell 1, and Armored Shell 2) Reduced damage in-take ratio by 70%, and also reduced Plasmid damage in-take by 25%. Location: After obtaining both Armored Shell tonics, it will be available at the next Gatherer's Garden for 250 ADAM.

Cogent Drill (Prerequsiite Drill Power, and Frozen Drill) A new additive to your drill allows for more power. Increases Drill damage by 60% Location: After obtaining the prerequisites, defeat more than 10 Brute Splicers and the 10th one shall yield the reward.