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Biostimulation – Definition and Applications

Biostimulation refers to procedures that activate biological processes in tissue to promote healing, regeneration, and cell growth. It is used in medicine and aesthetic treatments.

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Things worth knowing about "Biostimulation"

Biostimulation refers to procedures that activate biological processes in tissue to promote healing, regeneration, and cell growth. It is used in medicine and aesthetic treatments.

What is Biostimulation?

Biostimulation refers to medical and aesthetic procedures that deliberately activate biological processes within body tissues. The goal is to trigger the body´s own natural regeneration and healing mechanisms rather than replacing them. The term is used across multiple medical fields, including dermatology, orthopedics, sports medicine, and aesthetic medicine.

Mechanism of Action

Biostimulatory procedures work at the cellular level. They stimulate cells such as fibroblasts, keratinocytes, or stem cells to produce greater quantities of endogenous substances like collagen, elastin, and growth factors. This enhances tissue regeneration, wound healing, and skin renewal.

Common mechanisms of action include:

Photon energy (laser therapy, LED therapy): Light at specific wavelengths penetrates tissue and stimulates cellular metabolism.
Mechanical stimulation (microneedling): Controlled micro-injuries trigger the natural wound healing process and boost collagen production.
Biochemical stimulation (PRP, hyaluronic acid boosters): Autologous or biocompatible substances activate growth factors and tissue repair.
Electrical stimulation (electrostimulation, TENS): Low-level electrical impulses activate muscle and nerve cells.

Areas of Application

Aesthetic Medicine and Dermatology

In aesthetic medicine, biostimulation is used to improve skin quality, reduce wrinkles, and slow the aging process. Common procedures include:

Biostimulatory injections (e.g., with poly-L-lactic acid or calcium hydroxylapatite)
Autologous blood therapy (PRP – platelet-rich plasma)
Microneedling with or without active ingredient infiltration
Low-level laser therapy (LLLT)

Orthopedics and Sports Medicine

In orthopedics and sports medicine, biostimulatory methods are used to promote healing of tendons, ligaments, muscles, and bones. PRP injections into joints or tendon areas are considered a promising approach for conditions such as osteoarthritis or tendinopathy.

Wound Care and Regenerative Medicine

Biostimulatory techniques such as growth factor therapies or bioactive wound dressings are used to support the healing of chronic wounds. They promote cell migration and tissue formation in wounds that are slow to heal.

Biostimulatory Injectable Agents

An important subcategory of biostimulation involves so-called biostimulatory fillers or biostimulants injected in aesthetic medicine. Unlike conventional fillers, they do not directly replace volume but instead stimulate the body to produce its own collagen. Well-known substances include:

Poly-L-lactic acid (PLLA): Stimulates collagen synthesis over a period of several months.
Calcium hydroxylapatite (CaHA): Provides both volumizing and collagen-stimulating effects.
Polynucleotides (PDRN): Promote cell regeneration and tissue repair at the molecular level.

Safety and Side Effects

Biostimulatory procedures are considered safe when performed correctly by qualified medical professionals. Possible side effects include:

Redness, swelling, or bruising at the treatment site
Temporary pain or tenderness
In rare cases: nodule formation (granulomas) with injected biostimulants
Risk of infection with invasive procedures

A thorough medical history and individual risk assessment are essential before any treatment.

Scientific Evidence

The strength of scientific evidence for biostimulatory procedures varies depending on the method. While PRP and low-level laser therapy are supported by multiple clinical studies and meta-analyses, other procedures still require further research. Study quality varies, and experts recommend a critical evaluation of the available data before treatment decisions are made.

References

Alam M, Tung R. - Biostimulators: Fillers and Beyond. In: Dermatologic Clinics, 2022.
Everts P, Onishi K, Jayaram P, Lana J, Mautner K. - Platelet-Rich Plasma: New Performance Understandings and Therapeutic Considerations in 2020. International Journal of Molecular Sciences, 2020.
Hamblin MR. - Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochemistry and Photobiology, 2018.

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