Pym Particles

Pym Particles are subatomic particles capable of shrinking a human being to the size of an insect, while still possessing the strength of an average-sized human.

History
During the 1960s, Dr. Henry Pym discovered and isolated a rare group of subatomic particles, which became known as "Pym Particles", that could increase or decrease the size and mass of objects or living beings. He formulated it into a serum and built a special suit that allowed him to shrink down to the size of an insect. He and his wife Janet van Dyne used these abilities to become the superheroes "Ant-Man" and "Wasp". However, a tragic accident occurred during an experiment with the Pym Particles, which resulted in the death of van Dyne. This caused Pym to abandon the particles and his heroics until 2015, when he was forced to recruit a new Ant-Man and teach him how to use the serum.

Capabilities
Pym Particles can shrink humans and inanimate objects down to the size of an insect while retaining their regular strength.