PIP’s pretty common with home mixes not always infection—sometimes it’s just irritation.

Some batches sting more than others consistency isn’t always there, and your body notices.

Oil type can be a factor thicker stuff tends to hurt more going in.

Concentration matters
higher strength usually equals more bite.

Muscle choice plays a role
some spots just hate injections more.

Inflammation ≠ something wrong soreness can be normal, swelling is what people watch.