Is secretin a hormone?

Secretin:

1. Hormones refer to the chemical messengers that coordinate our body functions.
2. Secretin hormone is secreted by the s cells in the small intestine.
3. Secretin is a type of peptide hormone consisting of 27 amino acids.
4. The hormone commonly helps in regulating gastric acid, pancreatic bicarbonate, and osmoregulation.
5. Secretin is a gastrointestinal hormone.