Laennec 2 ml, 50 ampoules: profile, composition and research
Reference page for Laennec 2 ml, 50 ampoules. Active substance: Гидролизат плаценты человека / Human placenta hydrolysate.
- What it is: a solution based on human placenta hydrolysate for injection.
- Presentation: 2 ml ampoules, 50 ampoules per pack.
- Status: prescription medicine, administered by a healthcare professional.
- Research: a limited body of work, part of it in animals, links below.
- Where to buy: APV Pharmacy (price and availability there).
Key facts
| Active substance | Human placenta hydrolysate |
|---|---|
| Form | Solution for injection |
| Volume | 2 ml per ampoule |
| Pack size | 50 ampoules |
| Category | Prescription medicine |
| Article (SKU) |
What Laennec is
Laennec is a medicine based on human placenta hydrolysate. It is supplied as a solution for injection in 2 ml ampoules. The pack contains 50 ampoules.
The raw material is placental tissue that undergoes enzymatic breakdown. Large proteins are split into smaller fragments, and the solution becomes suitable for administration. This approach yields a mixture of substances rather than a single compound.
In Japan such preparations have been used in medicine since the middle of the last century. Later they entered the practice of aesthetic medicine and recovery procedures.
Composition and mechanism
Amino acids and peptides
The basis is made up of amino acids and short peptides. They serve as building material for the body's own proteins, including collagen and elastin.
Growth factors and cytokines
The composition includes signalling molecules that influence the activity of fibroblasts, the cells responsible for renewing connective tissue.
Vitamins and minerals
The solution also contains a vitamin and mineral complex that supports metabolism in skin cells.
The mechanism is not fully understood. Experimental data point to an effect on oxidative stress and repair processes, yet results from laboratory work cannot be transferred to humans directly.
Approved uses
In Japan the medicine is registered for chronic liver disease and is used in dermatology and cosmetology.
As a supportive measure it is considered for marked skin dryness, reduced skin tone, scars and post-acne marks, as well as during recovery after procedures. Such goals are set before the procedure by a doctor or an aesthetic medicine specialist.
The solution may be given only on a physician's prescription: it is an injectable medicine and is administered by healthcare professionals. A buyer cannot use it at home on their own.
Limits of the evidence base
A large share of publications on placenta hydrolysate are laboratory studies in animals and cell cultures. They help to understand possible mechanisms but do not confirm clinical benefit in people.
High-quality studies in patients are few. For this reason the medicine should not be seen as having a proven therapeutic effect. A doctor makes the decision, taking into account the patient's condition and expectations.
Links to a selection of published work, including studies in animal models, are given below.
Published research
Primary sources, verified against PubMed:
- Effectiveness and safety of human placenta hydrolysate injection into subacromial space in patients with shoulder impingement syndrome: a single-blind, randomized trial., PubMed 39754114 (BMC Musculoskelet Disord, 2025).
- Human Placenta Hydrolysate Protects Against Acetaminophen-Induced Liver Injury in Mice., PubMed 40427046 (Biomedicines, 2025).
- Laennec Attenuates Alcohol-Induced Hepatic Steatosis and Oxidative Stress in a Murine Model., PubMed 42510945 (Curr Issues Mol Biol, 2026).
Listed for reference. Publication of a study is not a claim about this particular product.
Precautions
- This is a prescription medicine and is administered only by a healthcare professional.
- Before the procedure a doctor checks the allergy history: reactions to the components of the solution are possible.
- Use during pregnancy or breastfeeding is discussed with a doctor individually.
- In acute infections, fever and flare-ups of chronic disease the procedure is usually postponed on a physician's decision.
- Tell your doctor about every other medicine you take and about procedures you have had.
- Injectable medicines must not be bought and given on one's own outside a medical setting.
Frequently asked
Is Laennec a prescription medicine?
Yes. It is a prescription injectable and is administered by a healthcare professional.
Can the injections be given at home on one's own?
No. An injectable medicine is used only in a medical setting and on a physician's prescription.
Is it proven that Laennec rejuvenates the skin?
Much of the research was done in animals and in the laboratory. High-quality clinical data are scarce, so no proven effect can be claimed.
Where does the order ship from?
Shipping and customs handling are described on the APV Pharmacy delivery page.