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Laennec Injection for Face: How Placenta Growth Factors Rejuvenate Skin From Within
Written by FillersFairy Editorial · Reviewed by FillersFairy Clinical Team · Last updated: June 24, 2026
Quick Answer
Laennec facial rejuvenation works by delivering multiple human growth factors directly into the skin — EGF for epidermal renewal, FGF for collagen synthesis, HGF for tissue repair and IGF for cell growth. Unlike single-pathway treatments (HA for hydration, PN for collagen), Laennec addresses skin quality through simultaneous multi-pathway regeneration. Practitioners administer it via subcutaneous facial injection or as part of an IV protocol. Patients typically notice improved skin texture, luminosity and firmness within 2–4 weeks, with cumulative improvement over a treatment course. It’s the “wellness from within” layer that complements topical and injectable aesthetic treatments.
Why Practitioners Use Laennec for Facial Rejuvenation
Most facial rejuvenation treatments target one pathway. HA boosters hydrate. PN stimulates collagen through A2A receptors. Botulinum toxin relaxes muscles. Each does one thing well.
Laennec takes a fundamentally different approach. As a human placenta extract containing 112 mg of hydrolysate per ampoule, it delivers a biological complex of growth factors, cytokines, amino acids and peptides that activate multiple regenerative pathways simultaneously. The skin doesn’t just get one signal — it gets the full repair toolkit that the body itself uses for tissue regeneration.
This is why high-end clinics in Tokyo, Seoul, Dubai and Singapore position Laennec as a “systemic skin wellness” treatment rather than a targeted correction. The patient isn’t fixing one specific concern — they’re upgrading their skin’s overall regenerative capacity.
Which Growth Factors Affect Facial Skin — And How
| Growth Factor | What It Does for Facial Skin | Visible Result |
|---|---|---|
| EGF | Stimulates epidermal cell proliferation and differentiation. Accelerates skin turnover — old cells are replaced faster with healthier new cells. | Brighter complexion, smoother texture, reduced dullness |
| FGF | Activates fibroblasts to produce new collagen and elastin. The same pathway targeted by PN boosters and PDLLA stimulators — but delivered as a native human growth factor. | Improved firmness, reduced fine lines, enhanced skin elasticity |
| HGF | Promotes tissue repair and anti-fibrotic activity. Supports wound healing and reduces scar-like tissue changes from chronic skin damage (sun, ageing, inflammation). | More even skin tone, reduced textural irregularity |
| IGF | Supports cell growth, differentiation and survival. Helps maintain dermal thickness and tissue integrity as the skin ages. | Maintained skin volume and density, slower visible ageing progression |
The synergy matters. JBP’s own research notes state that “the active ingredients cannot be identified as a single substance or group of substances” — meaning Laennec’s effect comes from the interaction of all these components together, not from any one growth factor in isolation. This is biologically analogous to how the placenta itself supports tissue development: through a coordinated multi-signal environment, not a single molecule.
Laennec vs PN vs HA for Facial Skin Quality
| Feature | Laennec | Rejuran (PN) | Hyaron (HA) |
|---|---|---|---|
| Mechanism | Multi-growth-factor regeneration | A2A receptor → collagen stimulation | Water binding → hydration |
| Pathways addressed | Multiple (EGF+FGF+HGF+IGF) | Single (A2A) | Single (hydration) |
| Immediate visible effect | Subtle (glow within days) | Moderate (hydration within days) | Strong (instant hydration) |
| Long-term improvement | Multi-dimensional | Collagen + elastin | Limited |
| Best positioned as | Systemic wellness + regeneration | Targeted skin quality | Entry-level hydration |
They’re not competitors — they’re layers. The most effective facial rejuvenation protocols combine all three: Hyaron for foundational hydration, Rejuran for targeted collagen stimulation, and Laennec for systemic multi-pathway regeneration. Each addresses a different biological layer of skin health.
Best Candidates for Laennec Facial Treatment
Ideal candidates: Patients experiencing overall skin quality decline — dullness, loss of elasticity, uneven texture, fine lines, fatigue-related complexion changes. Patients who want a “wellness from within” approach rather than targeted correction. Premium patients who already receive other aesthetic treatments and want to add a regenerative layer.
Particularly strong for: Patients over 40 whose natural growth factor production has declined significantly. Post-procedure patients looking to accelerate recovery (after laser, microneedling, peels). Patients preparing for significant events who want comprehensive skin improvement over 4–8 weeks.
Less suitable as standalone: Patients seeking immediate visible volume change (refer to fillers). Patients wanting specific wrinkle correction (refer to toxins). Laennec excels as a complement to targeted treatments, not as a replacement for them.
Treatment Approach
Laennec can be administered via several routes for facial rejuvenation. The specific approach depends on practitioner preference, patient needs and local regulatory requirements:
Subcutaneous facial injection: Small volumes injected into multiple facial points, delivering growth factors directly into the dermis. This approach provides the most localised facial benefit.
IV drip protocol: Laennec administered intravenously as part of a wellness IV cocktail. This provides systemic regeneration that benefits the face alongside overall health improvement. Many clinics offer this as a “beauty drip” or “rejuvenation infusion.”
Treatment course: Practitioners commonly recommend an initial phase of weekly or biweekly sessions over 4–8 weeks, followed by monthly maintenance. The multi-growth-factor effect is cumulative — each session builds on the regenerative momentum of the previous one.
Combination Protocols — The Premium Treatment Ladder
For clinics positioning Laennec as part of a premium facial rejuvenation programme, the most effective approach layers treatments by function:
Foundation: Hyaron HA mesotherapy for deep hydration (every 2–4 weeks)
Regeneration: Rejuran PN for targeted collagen stimulation (3 sessions, monthly)
Wellness: Laennec for systemic multi-growth-factor regeneration (weekly during initial phase, then monthly)
Correction: Botulinum toxin for dynamic wrinkles + dermal filler for structural volume (as needed)
This layered approach creates a comprehensive treatment programme with multiple rebooking cycles — each layer on its own schedule, keeping the patient engaged with the clinic throughout the year.
Practitioner Confidence Summary
Laennec facial rejuvenation offers something no other single product can: simultaneous multi-pathway regeneration through native human growth factors with 50+ years of manufacturing history. It doesn’t compete with HA boosters or PN therapy — it complements them as the systemic wellness layer in a comprehensive treatment programme. For clinics targeting premium patients who value holistic skin health, Laennec adds a differentiated offering that commands premium pricing. View Laennec product details →
Frequently Asked Questions
Does Laennec injection work for facial skin?
Yes. Laennec delivers multiple growth factors (EGF, FGF, HGF, IGF) that support epidermal renewal, collagen synthesis, tissue repair and cell growth in facial skin. Practitioners report improved texture, luminosity, firmness and overall skin quality after a treatment course.
How is Laennec used for facial rejuvenation?
Laennec can be administered via subcutaneous facial injection (delivering growth factors directly into the dermis) or intravenously as part of a wellness IV protocol. Most aesthetic protocols involve weekly or biweekly sessions during an initial 4–8 week phase, followed by monthly maintenance.
Is Laennec better than Rejuran for facial skin?
They address different aspects. Rejuran targets collagen stimulation through a single pathway (A2A receptor activation). Laennec provides multi-pathway regeneration through multiple growth factors simultaneously. Most practitioners use them together — Rejuran for targeted collagen building, Laennec for systemic skin wellness.
How many Laennec sessions do I need for facial improvement?
Most practitioners recommend 4–8 weekly sessions during the initial phase, with patients typically noticing improvements in skin texture and luminosity within 2–4 weeks. Monthly maintenance sessions sustain the results long-term.
Can Laennec be combined with fillers and Botox?
Yes. Laennec works alongside virtually every other aesthetic treatment. It provides the regenerative wellness layer while fillers address volume and toxins address dynamic wrinkles. Many premium clinics offer all three as part of a comprehensive facial rejuvenation programme.
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Disclosure: FillersFairy is a wholesale supplier of Laennec and other aesthetic products. This article is for educational purposes only and does not constitute medical advice.
References
- Japan Bio Products Co., Ltd. LAENNEC official product information. jbpglobal.placenta.co.jp.
- JBP. “Active ingredients cannot be identified as a single substance.” Product documentation.
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