Concentration: 300 IU per vial (1 kit: 10 vials, 3000 IU) Top Color: Red. Minimum Order: 1 kit (10 vials) / price is per kit. Peptides are stable at room temperature and can be kept in their initial packaging for several days to weeks. Otherwise, peptides can be stored at 4 °C or colder. To preserve product quality, keep away from intense light.