Dirt cheap? I mean, yea, pins are not made of gold but using one 10 times isntead of 1 saves you ten times the money.
Any frugal person can see the upside there.
And with peptides it adds up when youre doing close to 20 injections per week, indefinitely.
What risk btw?
A tiny amount of bacteria being introduced only a few milimeters deep under the skin? This isnt an oil bolus we're talking about. The 1/20th of a milliliter of water dissipates very quickly.