Your first ear piercing needle should be a mySunar nickel-free EtO Sterile medical-graded gold needle.

mySunar recommends an 18 carat Gold.

An 18 Carat is more appropriate for piercing as it provides the required strength and endurance on the piercing needle.Gold is a stable element and chemically inert. It does not bind chemically with others elements, nor does it rust or tarnish and is 100% non-reactive.

Thus, all kind of allergic reaction is negated.