I know that every time I have done a body piercing, if you hold the hollow needle up to the light there is a small piece of flesh inside it. This is for 14 gauge and above. The details as to the salt solution were posted a while back on this thread, that was my mistake I should have referenced that. I've always used anywhere from 1/2 tsp to 2 tsp per cup of warm water, and I've never had any problems at all. I used 2 tsp for my navel piercings and as a rinse for my tongue piercings, and 1 tsp for my eyebrow. The only time I've used 1/2 tsp is after the first month or so, when the healing has already started. Also, after I pierced my bellybutton with a safety pin, Epsom salt is the only thing that cleared it up. It had gotten infected, and I used regular salt on it and it didn't do much. That's when I tried Epsom, and it cleared up in less than a week. I understand people may have differing opinions on this, which is fine, but I know this is what I've been doing for a very long time and it's always worked fine, no complications. The only time anyone I know has had a problem with the salt solution is my husband (boyfriend at the time) didn't want to measure the salt and just dumped a buttload into a small glass of water. Literally, he probably mixed like 4 tbsp into one cup, it was all slushy and thick. Then he tried gargling with it. Let's just say the principle "If a little is good a lot is better" doesn't apply to salt solutions! He burned the whole top of his tongue! He started screaming and I came running and found out what he had done. LOL, that's what he gets for being lazy and not following directions!