Amplifiers for biomedical applications have been a subject of study for more than a century. However, it was not until this last decade that amplifiers that conform to the skin mechanics were introduced. The introduction of such a class of electronics brings along technical challenges from the manufacturing and applications perspective. A technique that increases the gain of NMOS-only amplifiers is presented, analyzed, and tested. A 20-dB gain represents a 6.5x increase over the previous generation of single stage skin-conformal amplifiers. Furthermore, a technique that amplifies the residual voltage of electrode arrays is presented and analyzed.