As I understand it, both.
But there are many different types of peptides that have different functions.
I will be taking 3 different kinds. (see my earlier post)
There is not much out there to read about, but I did find this source if you are interested to learn more.
Here is what it says about the first type I am using:
Thymosin alpha-1 (T α 1) is a peptide, or small protein, consisting of 28 amino acids. T α 1 is produced naturally by the thymus gland. The thymus is located behind the sternum and between the lungs, and is where immune cells known as T cells mature and are released, prompted to do so by the T α 1 peptide. T cell production and action within the body is vital to adaptive immunity—the mode by which immune cells are able to recognize and eradicate foreign invaders.
T α 1 has been found to have a profound effect on the immune system, and is the active ingredient in the immune modulating drug, Zadaxin®. Zadaxin® is used to treat hepatitis B and C, and has been studied extensively for its ability to support an immune system that has been suppressed by chemotherapy in cancer patients.
T α 1 Helps Support Important Immune Cells
Specifically, T α 1 has been shown to enhance the function of certain immune cells called T and dendritic cells. This is very important to anyone with a depressed immune system or suffering from an infection, as these white blood cells play pivotal roles in the body’s defense process. T cells, for example, come in two forms: killer and helper T cells. Killer T cells are responsible for hunting down and destroying our body’s own cells that are cancerous or infected with bacteria or viruses. Helper cells work with the other cells of the immune system to orchestrate and carry out appropriate immune responses.
Dendritic cells are just as valuable to our body’s defense system. These cells gather important information about infection or the presence of cancerous cells, and communicate with the T cells, who then act appropriately to eradicate the unhealthy cells and stop the infection or cancer growth.
T α 1 itself has been shown to exhibit antibacterial and antifungal properties, suppress tumor growth, increase vaccine effectiveness, and protect against oxidative damage.
Infection and T α 1
Studies have shown that individuals fighting infection have a lower amount of circulating T α 1 and suppressed helper T cell numbers compared to healthy individuals. This is problematic, as optimal immune function is vital to recovery from infection. Supplementation with T α 1 has the potential for great therapeutic benefit for patients suffering from infection or autoimmune disease.
In addition to its use in the treatment of Hepatitis, AIDS, and cancer, T α 1 has shown great promise in the treatment of Lyme disease. This is unsurprising when one considers the large role the immune system plays in combating the disease.
T α 1 assists the immune system in the location and eradication of the Lyme bacteria and infected cells, while helping to prevent oxidative damage, thereby decreasing inflammation and enabling better quality of life throughout treatment.