What are peptides

The essentials in five minutes: how peptides are built, how they work and what to know before starting a course.

Short chains of amino acids

A peptide usually contains 2 to 50 amino acids. The body produces thousands of them on its own: peptides work as signalling molecules that pass commands to cells. Insulin and oxytocin, for example, are peptide hormones.

Peptide

2–50 amino acids. A signal: it passes a specific command to specific cells.

Protein

From 50 to thousands of amino acids. Building material and enzymes of the body.

How they work

  1. 1

    Find their receptor

    A peptide binds to a specific receptor on the cell surface — like a key to a lock.

  2. 2

    Trigger a response

    The cell receives the signal: for example, to start tissue repair or produce a hormone.

  3. 3

    Act precisely

    Each peptide has its own task, so they are chosen for a specific goal.

What they are studied for

Areas where peptides are actively researched. This is not a promise of results: the effect depends on the person and is chosen with a specialist.

Immunity

Thymosin alpha-1 is a peptide of the thymus gland, studied to support the immune system.

In the catalog:Thymosin alpha-1

Skin

GHK-Cu (copper peptide) takes part in collagen production and is also used in cosmetics.

Metabolism and weight

Tirzepatide is a peptide drug approved for type 2 diabetes and weight loss; retatrutide is being studied alongside it.

In the catalog:TirzepatideRetatrutide

Cell energy

SS-31 and MOTS-c are mitochondrial peptides studied in connection with cellular energy and ageing.

Longevity

Epitalon is studied in connection with telomeres and cell ageing (research by Vladimir Khavinson).

In the catalog:Epitalon

How they are used

Subcutaneous injections
The most common way. A peptide in a vial is a dry powder (lyophilisate) that is dissolved before use.
Capsules, sprays, creams
Some peptides are taken orally, through the nose or applied to the skin — it depends on the peptide.
In courses
Peptides are usually taken in courses with breaks. The schedule is chosen by a specialist.
In the fridge
Vials are stored in a refrigerator at +2…+8 °C.

What is important to know

  • Choose with a specialistThe dosage depends on age, weight and health. Do not start a course without a consultation.
  • Side effects are possibleFor example, redness at the injection site. Report any reaction to the specialist.
  • Quality matters more than priceFakes and improperly stored peptides are useless or dangerous. Check the certificate of analysis for the batch.
Check a batch certificate →

Questions

Are peptides safe?

With the right choice and a specialist’s supervision, they are usually well tolerated. But they are active substances: side effects and contraindications are possible.

When will I see results?

It depends on the peptide and the goal — from a few days to several weeks or months.

Can I take them with medications?

Often yes, but be sure to tell the specialist about all medications and supplements you take.

Not sure where to start?

A specialist will choose peptides for your goal and tell you which tests to take.