An analyst loading vials into a high-performance liquid chromatography system.

HPLC Analysis

A cream being applied to the inside of a forearm.

Dermatological Patch Testing

Gloved hands handling a petri dish at a laboratory bench.

Preservative Efficacy Testing (PET)

A technician working at a fume hood with a rack of sample tubes.

Heavy Metal Testing

A gloved hand holding a culture plate with colonies growing on it.

Microbiological Testing

A scientist taking a pH reading from a beaker.

Physical & Chemical Testing

Two scientists loading sample trays into a stability chamber.

Stability Studies

A clinician examining a patient’s arm with a magnifier.

Clinical Studies