1. Gently insert the Electro-Gel filled syringe into the hole in the middle of the electrode, using the blunted needle, until it contacts the client’s scalp. Pull back just enough that the scalp is not preventing gel from flowing out of the needle tip, but where the tip remains between the electrode and the scalp.
2. Using your thumb to depress the plunger, deposit a small amount of gel on the scalp so it fills the gap between the electrode and the scalp. You can test to see if you have the right amount of gel by gently pressing the electrode down on the scalp. If the gel leaks out from under the electrode, you dispensed too much. If you dispensed too little, you will not see any gel rising in the hole where you previously inserted the blunted needle. You can always flip the electrode up clean off the electrode and scalp and reapply the gel if you get into trouble.
3. The right amount of gel will not leak out from under the electrode but can be seen entering the hole in the middle, when the electrode is pressed. This process takes practice but will eventually become second nature.
4. Repeat the steps above for all 19 electrodes.