Laennec is an injectable solution of water-soluble human placenta hydrolysate. Each 2ml ampoule contains 112mg of the placenta extract, obtained by enzymatic extraction that yields growth factors, cytokines, amino acids and peptides. It is a light yellow-brown transparent liquid with a pH of 5.5 to 6.5 and an osmotic pressure close to physiological saline. Supplied as 50 ampoules of 2ml, it is an ethical (prescription) preparation administered by subcutaneous or intramuscular injection under professional supervision.
What is Laennec?+
Laennec is an injectable preparation made from a water-soluble hydrolysate of human placenta, produced by enzymatic extraction that releases the bioactive substances of placenta into solution. It is classified as an ethical (prescription) drug for professional medical and aesthetic use.
What does each ampoule contain?+
Each 2ml ampoule contains 112mg of water-soluble human placenta hydrolysate as the active. Pepsin (a porcine gastric extract) and lactose (of bovine milk origin) are used during manufacturing. The box contains 50 ampoules.
What bioactive substances does it carry?+
Human placenta naturally contains growth factors, cytokines, amino acids and peptides, and the extraction concentrates these into the solution. Because the activity comes from the whole extract rather than one isolated molecule, the preparation is characterized by its overall composition.
How is it given and stored?+
It is administered by subcutaneous or intramuscular injection by a qualified professional. The liquid is light yellow-brown and close to isotonic. Keep it in a dark place at a temperature not exceeding 25C, with a shelf life of three years from manufacture.
Who should administer it?+
As an ethical drug it must be handled and administered only by licensed medical professionals, not self-administered. It is a human-derived biological product, so it should be avoided in anyone with known hypersensitivity to its components; those with milk (lactose) allergy should note lactose is used in manufacturing. Patient suitability is assessed by the treating professional.
Laennec is an ethical (prescription) drug and a human-derived biological product. It must be administered only by licensed medical professionals and never self-administered. Contraindicated in known hypersensitivity to placenta extract or to materials used in manufacturing (including lactose / milk-derived), and in pregnancy or breastfeeding unless directed by a physician. Patient suitability must be established by the treating professional. Store in a dark place not above 25C.
📖 Learn More About Laennec
- What Is Laennec? Complete Placenta Extract Guide — Growth factors, mechanism, clinical applications
- Laennec Side Effects: Practitioner Safety Guide — What to expect and how to manage
- 5 Common Uses of Laennec Injection — Aesthetic and clinical applications
Regulatory Notice: Approval and prescription status of human placenta preparations vary by jurisdiction and are restricted in many countries. Buyers are responsible for verifying applicable local regulations and licensing prior to import and use. FillersFairy is a distributor and not liable for clinical outcomes. Informational content only – not medical advice.
📖 Learn More About Laennec
- Laennec Injection for Face: How Placenta Extract Rejuvenates Skin — treatment guide and protocol
- Laennec Before and After: Results Timeline — realistic expectations for practitioners

Isabella Rossi –
I used to think people bragging about Laennec improving sleep were exaggerating until I tried a cycle myself. My main goal was fixing dull skin from staying up late, but my sleep quality improved before I even saw skin changes. I used to wake up easily; now the deep sleep is incredible. It’s more hassle than skincare creams, but for the endocrine balance it provides, the tiny sting is totally worth it.
Chen Wei –
Working 60 hours a week destroyed my liver enzymes and left my face looking grey. After a 10-session course of Laennec, my latest blood work actually showed improvement in my ALT levels. It’s way more effective than oral milk thistle. Unlike some cheap brands, this doesn’t leave lumps under the skin if you do the technique right. If you’re constantly tired, stop wasting money on coffee and try this.
Michael Park –
Fillersfairy saved me time and money. Compared three sites—their pricing was the clearest, and the 5% discount for 10 boxes sealed the deal. Loved the order updates; no need to chase customer service.Subtle but effective. My dark circles lightened after 3 weeks, and the injections are painless.
Carter –
First time trying Laennec Placenta from fillersfairy, and I’m impressed! Ordered 10 boxes and got a sweet 5% discount way better than other sites I checked. Tracking was smooth; I could see my order moving in real time, which eased my mind. The ampoules arrived cold-packed, just as described. Been using them for 2 weeks now, and my skin feels firmer.