Laennec Inj. (Japanese Version)

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Laennec Inj. (Japanese Version) — a human placenta hydrolysate from Japan Bio Products, established for liver-function support, with cytokines, amino acids and peptides. 2 ml x 50; Japanese version, ships from Japan. Human placenta-derived; for licensed practitioners.

$280.80

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Laennec · Japanese Version · Human Placenta
Laennec Japanese
Human Placenta Hydrolysate · Japanese Version · Liver Function

Laennec Inj. (Japanese Version) is a human placenta hydrolysate from Japan Bio Products, the Japanese-version SKU which ships from Japan. Long established for liver-function support, it contains cytokines, amino acids, peptides, nucleobases and carbohydrates, supplied as 2 ml × 50, and is also prescribed for menopausal and other uses (off-label in many regions).

Product Notice

Japanese version — ships from Japan. This is a human placenta-derived prescription product. Approved indications vary by brand and market; aesthetic uses are off-label in many regions. For use by or under a licensed practitioner.

Human Placenta Hydrolysate · Japanese Version · 2 ml × 50 · JBP
Overview

About Laennec Inj. (Japanese Version)

Laennec is an aqueous human placenta hydrolysate produced via enzymatic molecular separation and hydrolysis, with each placenta screened for HIV and hepatitis B and C. It is well established for liver-function support and has long been prescribed for menopausal disorders, atopic dermatitis, skin care and fatigue; its mechanism and clinical effectiveness in these wider uses are not fully established. This Japanese-version SKU ships from Japan.

Composition

What’s in Laennec Inj. (Japanese Version)

HUMAN PLACENTA HYDROLYSATEAqueous extractActive

Hydrolyzed human placenta.

Laennec is an aqueous human placenta hydrolysate produced by enzymatic separation and hydrolysis, with each source placenta screened for HIV and hepatitis B and C.

CYTOKINES · AMINO ACIDS · PEPTIDESBioactive profileBioactives

Cytokines, amino acids, peptides, nucleobases, carbohydrates.

It contains a variety of cytokines derived from human placenta, along with amino acids, peptides, nucleobases and carbohydrates.

LIVER FUNCTIONEstablished useRegulatory

Established for liver function.

Laennec is long established for liver-function support; aesthetic and other uses (menopause, skin, fatigue) are off-label in many regions.

Administration

Use & protocol

Method
Administered subcutaneously or intramuscularly by a practitioner; a normal adult dose is 2 ml once daily, per labeling.
Established use
Liver-function support.
Shipping
Japanese-version SKU — ships from Japan.
Storage
Light yellow-brown clear liquid; store per the product instructions, away from sunlight.
Indications

Focus & uses

Liver function support
Menopausal symptoms (off-label)
Skin care and radiance (off-label)
Fatigue (off-label)
Human placenta hydrolysate therapy
Practitioner-administered
Specifications

Specifications

Product
Laennec Inj. (Japanese Version)
Brand
Laennec
Active
Human placenta hydrolysate
Version
Japanese version (ships from Japan)
Contains
Cytokines, amino acids, peptides, nucleobases, carbohydrates
Source
Human placenta-derived (screened HIV/HBV/HCV)
Use
Liver-function support; other uses off-label
Presentation
2 ml × 50
Manufacturer
Japan Bio Products (JBP)
Administration
Subcutaneous / intramuscular (professional)
Category
Antioxidant & vitamin injection
Origin
South Korea / Japan
FAQ

Frequently asked questions

What is Laennec (Japanese Version)?

A human placenta hydrolysate from Japan Bio Products, the Japanese-version SKU which ships from Japan, long established for liver-function support.

How is the Japanese version different from the Korean version?

Both are Laennec human placenta hydrolysate; the difference is the sourcing/version and shipping origin — the Japanese version ships from Japan, the Korean version ships from Korea.

Is it human placenta-derived?

Yes — Laennec is an aqueous human placenta hydrolysate. Each source placenta is screened for HIV and hepatitis B and C.

What does it contain?

Cytokines derived from human placenta, plus amino acids, peptides, nucleobases and carbohydrates.

What is it used for?

It is well established for liver-function support and has long been prescribed for menopausal and other uses, which are off-label in many regions; effectiveness in these areas is not fully established.

How is it administered?

Subcutaneously or intramuscularly by a practitioner; a normal adult dose is 2 ml once daily, per the labeling.

How is it supplied?

As 2 ml × 50; a light yellow-brown clear liquid.

Who should administer Laennec?

A licensed practitioner, as it is a prescription human placenta-derived product.

Related

Related injections

JBP Curacen Inj.
Low-Molecular-Weight Human Placenta Hydrolysate

JBP Plamon Inj.
Human Placenta Extract with Growth Factors

Laennec Inj. (Korean Version)
Human Placenta Hydrolysate · Korean Version · KFDA (Liver Function)

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Safety

Safety information

This is an injectable product for administration by licensed practitioners only. This is a human placenta-derived product. Approved medical indications differ by market and brand; aesthetic anti-aging and skin-brightening uses are off-label in many regions, are not approved by the US FDA, and results vary between individuals. It should be used only by or under a licensed practitioner. Use aseptic technique and assess each patient before treatment. Cautions include pregnancy and breastfeeding, known hypersensitivity to the ingredients, and any product-specific contraindications. Refer to the manufacturer’s instructions for use before treatment. Effects are not guaranteed and vary between individuals.

Laennec Inj. (Japanese Version) is a trademark of its respective brand owner. For licensed healthcare professionals only. Last reviewed: June 2026.

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1 review for Laennec Inj. (Japanese Version)

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    Benjamin Harris
    2026-05-14
    I started this to manage menopause symptoms, and it's been a lifesaver. The night sweats and irritability have decreased significantly. I've researched the production tech, and Laennec is far more rigorous than most "cheap" alternatives. Small downside: be careful snapping the glass ampoules. Highly recommend if you're struggling with mood swings.
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