Frequently asked
Popular questions, answered with research
Every answer links back to the 52,792-study library so you can read the sources yourself (updated 17 August 2026).
Educational information drawn from published research, not personal medical advice. Please consult a qualified physician before making decisions.
What is SVF, and how is it different from “stem cells” in general?
SVF (stromal vascular fraction) is the cell-rich fraction isolated from adipose tissue. It contains adipose-derived stem cells (ADSCs) alongside vascular and immune cell populations that work together, so research treats SVF as a cooperative repair-supporting mixture rather than a single cell type.
- Level AMeta-analysisPubMed
Stromal Vascular Fraction-Assisted Fat Grafting: A Systematic Review and Meta-analysis of Clinical Outcomes.
Meta-analysis on Face & Skin, published in Aesthetic Plast Surg (2026) — summary generated from the PubMed abstract.
- 2026
Aesthetic Plast Surg - Level ASystematic ReviewPubMed
Stromal Vascular Fraction in Bone Healing: A Systematic Review of Clinical Evidence and Potential Implications in Skull Base Reconstruction and Cranioplasty.
Systematic Review with a reported sample of 214 on Chronic Wound, Immune Modulation, published in J Craniofac Surg (2026) — summary generated from the PubMed abstract.
- 2026
- n = 214
J Craniofac Surg - Level ASystematic ReviewPubMed
A systematic review of clinical evidence on the efficacy and safety of conditioned media, platelet-rich fibrin, stromal vascular fraction, extracellular vesicles, and stem cells in androgenetic alopecia.
Systematic Review with a reported sample of 724 on Hair Loss, Hair Regeneration, published in Stem Cell Res Ther (2026) — summary generated from the PubMed abstract.
- 2026
- n = 724
Stem Cell Res Ther
What does the research show for knee osteoarthritis?
Knee osteoarthritis is one of the most studied areas, with randomised trials and systematic reviews reporting positive signals for pain and joint function. Outcomes still vary with cell preparation methods and participant profiles.
- Level AMeta-analysisPubMed
Clinical Outcomes of Biologic Therapies for Knee Osteoarthritis: A Systematic Review and Meta-analysis of Studies With ≥12-Month Follow-up.
Meta-analysis on Knee Osteoarthritis, Osteoarthritis, published in Mod Rheumatol (2026) — summary generated from the PubMed abstract.
- 2026
Mod Rheumatol - Level AMeta-analysisEurope PMC
Towards optimized rehabilitation with regenerative therapy: A systematic review and meta-analysis on the effects of cell-based injections for knee osteoarthritis
Meta-analysis on Knee Osteoarthritis, Osteoarthritis, published in Knee Surg Sports Traumatol Arthrosc (2026) — summary generated from the PubMed abstract.
- 2026
Knee Surg Sports Traumatol Arthrosc - Level ASystematic ReviewPubMed
Intra-articular fat grafting for pain relief and functioning improvement in patients with knee osteoarthritis: systematic review.
Systematic Review on Knee Osteoarthritis, Osteoarthritis, published in Disabil Rehabil (2026) — summary generated from the PubMed abstract.
- 2026
Disabil Rehabil
Is there research for skin and hair?
Yes — regenerative aesthetics studies look at skin quality, elasticity, post-procedure recovery, and hair density, focusing on growth factors and improved local circulation.
- Level AMeta-analysisPubMed
Clinical Efficacy of Adipose-Derived Stem Cell-Enriched Lipotransfer Versus Conventional Fat Grafting: A Systematic Review and Meta-Analysis.
Meta-analysis on Facial Rejuvenation, published in Cureus (2026) — summary generated from the PubMed abstract.
- 2026
Cureus - Level ASystematic ReviewPubMed
A commentary on the need for minimum information for studies evaluating biologics in plastic surgery.
Systematic Review on Chronic Wound, Facial Rejuvenation, published in J Plast Reconstr Aesthet Surg (2026) — summary generated from the PubMed abstract.
- 2026
J Plast Reconstr Aesthet Surg - Level ASystematic ReviewEurope PMC
Autolougous platelet concentrates in esthetic medicine
Systematic Review on Scar, Skin Aging, Facial Rejuvenation, Hair Regeneration, published in Periodontol 2000 (2025) — summary generated from the PubMed abstract.
- 2025
Periodontol 200016 citations
How strong is the evidence today?
This library holds 1,504 Level A and 2,689 Level B studies — the highest-confidence tiers — while Level C–D work continues to build the scientific groundwork.
- Level AMeta-analysisEurope PMC
Efficacy and Safety of Fat Graft Myringoplasty Combined With Platelet-Rich Plasma for Managing Chronic Tympanic Membrane Perforations: A Systematic Review and Meta-Analysis
Meta-analysis with a reported sample of 522 on Chronic Wound, published in Clin Exp Otorhinolaryngol (2026) — summary generated from the PubMed abstract.
- 2026
- n = 522
Clin Exp Otorhinolaryngol1 citations - Level AMeta-analysisEurope PMC
Single cell transcriptomics of human weight loss links adipocyte NPY1R to control of lipolysis
Meta-analysis on Systemic / IV, published in Mol Metab (2026) — summary generated from the PubMed abstract.
- 2026
Mol Metab - Level AMeta-analysisPubMed
Stromal Vascular Fraction-Assisted Fat Grafting: A Systematic Review and Meta-analysis of Clinical Outcomes.
Meta-analysis on Face & Skin, published in Aesthetic Plast Surg (2026) — summary generated from the PubMed abstract.
- 2026
Aesthetic Plast Surg
How long do reported effects last?
Most follow-up windows run 6–24 months, with some studies tracking longer. Reported durability varies by condition, preparation method, and supportive care such as rehabilitation or lifestyle changes.
- Level ARandomized Controlled TrialPubMed
Darvadstrocel in Patients With Crohn's Disease With Complex Perianal Fistulas: The ADMIRE CD II Phase 3 Randomized Trial.
Randomized Controlled Trial with a reported sample of 283 on Autoimmune Research, published in Gastroenterology (2026) — summary generated from the PubMed abstract.
- 2026
- n = 283
Gastroenterology3 citations - Level ARandomized Controlled TrialEurope PMC
Effect of weight loss and liraglutide on neutrophil gelatinase-associated lipocalin levels among individuals with overweight and knee osteoarthritis: Exploratory analyses of a randomized controlled trial
Randomized Controlled Trial with a reported sample of 168 on Knee Osteoarthritis, Osteoarthritis, published in Osteoarthr Cartil Open (2025) — summary generated from the PubMed abstract.
- 2025
- n = 168
Osteoarthr Cartil Open2 citations - Level ARandomized Controlled TrialPubMed
Adipose tissue-derived versus bone marrow-derived cell concentrates for the injective treatment of knee osteoarthritis: protocol of a prospective randomised controlled trial.
Randomized Controlled Trial with a reported sample of 204 on Knee Osteoarthritis, Osteoarthritis, Chronic Inflammation, published in BMJ Open (2025) — summary generated from the PubMed abstract.
- 2025
- n = 204
BMJ Open
What is known about safety?
Most reports describe mild, temporary effects such as swelling, tightness, or soreness at the treated site. Clinic standards, an experienced medical team, and structured follow-up matter most.
- Level BClinical TrialEurope PMC
Latest progress and challenges in drug development for degenerative motor neuron diseases
Clinical Trial on Neuroinflammation, published in Neural Regen Res (2026) — summary generated from the PubMed abstract.
- 2026
Neural Regen Res5 citations - Level BClinical TrialEurope PMC
Stem cell repair strategies for epilepsy
Clinical Trial, published in Neural Regen Res (2026) — summary generated from the PubMed abstract.
- 2026
Neural Regen Res3 citations - Level BClinical TrialEurope PMC
Mitophagy: A key regulator in the pathophysiology and treatment of spinal cord injury
Clinical Trial on Spinal Cord Injury, Neuroinflammation, published in Neural Regen Res (2026) — summary generated from the PubMed abstract.
- 2026
Neural Regen Res3 citations
Are clinical trials still running?
Yes. This library includes roughly 4,193 trial-grade and systematic-review records, with publications running through 2026.
- Level BRandomized Controlled TrialEurope PMC
Safety and Efficacy of Micronized Acellular Dermal Matrix Injection for Correction of Moderate to Severe Nasolabial Folds: A Double-Blind, Multicenter, Randomized Controlled, Non-inferior Clinical Trial
Randomized Controlled Trial with a reported sample of 86 on Skin Aging, Facial Rejuvenation, published in Aesthetic Plast Surg (2026) — summary generated from the PubMed abstract.
- 2026
- n = 86
Aesthetic Plast Surg - Level BRandomized Controlled TrialPubMed
Effects of Local and Systematic Administration of Adipose Tissue-Derived Stem Cells to Intestinal Anastomosis in Intestinal Ishemic Rerfusion Injury: Ani̇mal Experi̇ment Model.
Randomized Controlled Trial with a reported sample of 10 on Chronic Wound, published in J Surg Res (2026) — summary generated from the PubMed abstract.
- 2026
- n = 10
J Surg Res - Level BRandomized Controlled TrialEurope PMC
Melatonin as a Guardian of Mitochondria: Mechanisms and Therapeutic Potential in Neurodegenerative Diseases
Randomized Controlled Trial on Neuroinflammation, published in Biology (Basel) (2026) — summary generated from the PubMed abstract.
- 2026
Biology (Basel)2 citations
What should I ask my doctor?
Ask about evidence specific to your condition, the preparation method used, the follow-up plan, how success will be measured, and what other evidence-backed options exist.
- Level ASystematic ReviewPubMed
Cool Fat, Hot Topic: A Systematic Review on Cryopreservation of Adipose Tissue.
Systematic Review, published in Tissue Eng Part B Rev (2026) — summary generated from the PubMed abstract.
- 2026
Tissue Eng Part B Rev - Level ASystematic ReviewEurope PMC
The suitability of mesenchymal stem cells for treating immune-mediated inflammatory skin diseases: a systematic review
Systematic Review with a reported sample of 609 on Hair Loss, Immune Modulation, Autoimmune Research, published in Dermatol Reports (2026) — summary generated from the PubMed abstract.
- 2026
- n = 609
Dermatol Reports - Level ASystematic ReviewEurope PMC
The Influence of GLP-1 Agonists on Human Mesenchymal Stem Cells: A Systematic Review
Systematic Review on Type 2 Diabetes, published in Stem Cell Rev Rep (2026) — summary generated from the PubMed abstract.
- 2026
Stem Cell Rev Rep2 citations
Which side effects are reported, and how long do they last?
The most common reports are temporary local effects — swelling, bruising, tightness, or dull soreness at the injection or harvest site — typically easing within 3–7 days. Longer follow-up studies report serious events at very low rates.
How many sessions are typical, and how far apart?
Most studies use a single administration followed by observation; some examine repeat sessions at 6–12 months depending on individual response. The right plan depends on your condition and your physician's assessment.
- Level ARandomized Controlled TrialPubMed
Darvadstrocel in Patients With Crohn's Disease With Complex Perianal Fistulas: The ADMIRE CD II Phase 3 Randomized Trial.
Randomized Controlled Trial with a reported sample of 283 on Autoimmune Research, published in Gastroenterology (2026) — summary generated from the PubMed abstract.
- 2026
- n = 283
Gastroenterology3 citations - Level ARandomized Controlled TrialEurope PMC
Effect of weight loss and liraglutide on neutrophil gelatinase-associated lipocalin levels among individuals with overweight and knee osteoarthritis: Exploratory analyses of a randomized controlled trial
Randomized Controlled Trial with a reported sample of 168 on Knee Osteoarthritis, Osteoarthritis, published in Osteoarthr Cartil Open (2025) — summary generated from the PubMed abstract.
- 2025
- n = 168
Osteoarthr Cartil Open2 citations - Level ARandomized Controlled TrialPubMed
Adipose tissue-derived versus bone marrow-derived cell concentrates for the injective treatment of knee osteoarthritis: protocol of a prospective randomised controlled trial.
Randomized Controlled Trial with a reported sample of 204 on Knee Osteoarthritis, Osteoarthritis, Chronic Inflammation, published in BMJ Open (2025) — summary generated from the PubMed abstract.
- 2025
- n = 204
BMJ Open
How does SVF differ from PRP and cultured stem cells?
PRP is concentrated platelets releasing growth factors; SVF is a fresh adipose cell mixture containing stem, vascular, and immune cells; cultured stem cells are laboratory-expanded and sit under different regulatory requirements.
- Level AMeta-analysisEurope PMC
Efficacy and Safety of Fat Graft Myringoplasty Combined With Platelet-Rich Plasma for Managing Chronic Tympanic Membrane Perforations: A Systematic Review and Meta-Analysis
Meta-analysis with a reported sample of 522 on Chronic Wound, published in Clin Exp Otorhinolaryngol (2026) — summary generated from the PubMed abstract.
- 2026
- n = 522
Clin Exp Otorhinolaryngol1 citations - Level ASystematic ReviewEurope PMC
Best evidence summary for platelet-rich plasma treatment of chronic wounds
Systematic Review on Chronic Wound, published in Regen Ther (2026) — summary generated from the PubMed abstract.
- 2026
Regen Ther - Level ASystematic ReviewEurope PMC
Molecular and Regenerative Effects of Platelet-Rich Plasma and Related Hemocomponents in Animal Models of Liver Injury-A Systematic Review
Systematic Review on Immune Modulation, published in Int J Mol Sci (2026) — summary generated from the PubMed abstract.
- 2026
Int J Mol Sci
How much research supports intravenous (IV) delivery?
Systemic/IV work is one of the fastest-growing topics, studying inflammatory balance, vitality, and overall quality of life, with good tolerability reported overall.
- Level BClinical TrialPubMed
Safety and feasibility of intravenous fresh adipose-derived mesenchymal stem cells in secondary progressive multiple sclerosis: phase I/IIa clinical results.
Clinical Trial on Neuroinflammation, Chronic Inflammation, Immune Modulation, published in Stem Cell Res Ther (2026) — summary generated from the PubMed abstract.
- 2026
Stem Cell Res Ther1 citations - Level BRandomized Controlled TrialPubMed
Evaluation of Multiple Intravenous Infusions of Autologous Adipose-Derived Mesenchymal Stem Cells in Parkinson's Disease: A Randomized, Double-Blind Clinical Trial.
Randomized Controlled Trial with a reported sample of 24 on Neuroinflammation, published in Parkinsons Dis (2026) — summary generated from the PubMed abstract.
- 2026
- n = 24
Parkinsons Dis - Level BClinical TrialEurope PMC
Intravenous human umbilical cord-derived mesenchymal stem cell transplantation for ischemic stroke (MERIT): A phase 1 trial
Clinical Trial with a reported sample of 6 on Stroke Research, published in Cell Rep Med (2026) — summary generated from the PubMed abstract.
- 2026
- n = 6
Cell Rep Med
Is there research for hair thinning and hair loss?
Yes — studies measure hair density and scalp health, reporting positive signals in pattern hair thinning, with changes usually clearer at 3–6 month follow-up.
- Level ASystematic ReviewEurope PMC
The suitability of mesenchymal stem cells for treating immune-mediated inflammatory skin diseases: a systematic review
Systematic Review with a reported sample of 609 on Hair Loss, Immune Modulation, Autoimmune Research, published in Dermatol Reports (2026) — summary generated from the PubMed abstract.
- 2026
- n = 609
Dermatol Reports - Level ASystematic ReviewPubMed
A systematic review of clinical evidence on the efficacy and safety of conditioned media, platelet-rich fibrin, stromal vascular fraction, extracellular vesicles, and stem cells in androgenetic alopecia.
Systematic Review with a reported sample of 724 on Hair Loss, Hair Regeneration, published in Stem Cell Res Ther (2026) — summary generated from the PubMed abstract.
- 2026
- n = 724
Stem Cell Res Ther - Level AMeta-analysisEurope PMC
DKK3-CKAP4 signaling drives fibroimmune remodeling and hair follicle miniaturization in androgenetic alopecia
Meta-analysis on Hair Loss, Hair Regeneration, published in Theranostics (2026) — summary generated from the PubMed abstract.
- 2026
Theranostics
What about chronic or slow-healing wounds?
Chronic and diabetic wound research reports positive signals for new tissue formation and local blood flow — one of the areas with a large body of clinical work.
- Level AMeta-analysisEurope PMC
Efficacy and Safety of Fat Graft Myringoplasty Combined With Platelet-Rich Plasma for Managing Chronic Tympanic Membrane Perforations: A Systematic Review and Meta-Analysis
Meta-analysis with a reported sample of 522 on Chronic Wound, published in Clin Exp Otorhinolaryngol (2026) — summary generated from the PubMed abstract.
- 2026
- n = 522
Clin Exp Otorhinolaryngol1 citations - Level ASystematic ReviewEurope PMC
Stem cell-derived exosomes in tissue regeneration of oral and maxillofacial region: A systematic review
Systematic Review on Chronic Wound, published in Medicine (Baltimore) (2026) — summary generated from the PubMed abstract.
- 2026
Medicine (Baltimore) - Level ASystematic ReviewEurope PMC
Best evidence summary for platelet-rich plasma treatment of chronic wounds
Systematic Review on Chronic Wound, published in Regen Ther (2026) — summary generated from the PubMed abstract.
- 2026
Regen Ther
Does the preparation method affect results?
Yes. Studies point to cell yield, viability, and process consistency as key variables, so it is worth asking your clinician about the preparation method and quality controls used.
- Level ASystematic ReviewEurope PMC
A comprehensive review of advances in hepatocyte microencapsulation: selecting materials and preserving cell viability
Systematic Review, published in Front Immunol (2024) — summary generated from the PubMed abstract.
- 2024
Front Immunol4 citations - Level ASystematic ReviewPubMed
The Influence of High and Low Negative Pressure Liposuction and Various Harvesting Techniques on the Viability and Function of Harvested Cells-a Systematic Review of Animal and Human Studies.
Systematic Review, published in Aesthetic Plast Surg (2021) — summary generated from the PubMed abstract.
- 2021
Aesthetic Plast Surg5 citations - Level AMeta-analysisEurope PMC
Change in Viability and Function of Pancreatic Islets after Coculture with Mesenchymal Stromal Cells: A Systemic Review and Meta-Analysis
Meta-analysis on Type 1 Diabetes, published in J Diabetes Res (2020) — summary generated from the PubMed abstract.
- 2020
J Diabetes Res7 citations
What aftercare do studies pair with the procedure?
Studies with the best outcomes pair it with whole-picture care: short-term rest of the treated area, good hydration and sleep, weight management, and physiotherapy or exercise as advised.
- Level BRandomized Controlled TrialEurope PMC
Safety and Efficacy of Micronized Acellular Dermal Matrix Injection for Correction of Moderate to Severe Nasolabial Folds: A Double-Blind, Multicenter, Randomized Controlled, Non-inferior Clinical Trial
Randomized Controlled Trial with a reported sample of 86 on Skin Aging, Facial Rejuvenation, published in Aesthetic Plast Surg (2026) — summary generated from the PubMed abstract.
- 2026
- n = 86
Aesthetic Plast Surg - Level BRandomized Controlled TrialPubMed
Effects of Local and Systematic Administration of Adipose Tissue-Derived Stem Cells to Intestinal Anastomosis in Intestinal Ishemic Rerfusion Injury: Ani̇mal Experi̇ment Model.
Randomized Controlled Trial with a reported sample of 10 on Chronic Wound, published in J Surg Res (2026) — summary generated from the PubMed abstract.
- 2026
- n = 10
J Surg Res - Level BRandomized Controlled TrialEurope PMC
Melatonin as a Guardian of Mitochondria: Mechanisms and Therapeutic Potential in Neurodegenerative Diseases
Randomized Controlled Trial on Neuroinflammation, published in Biology (Basel) (2026) — summary generated from the PubMed abstract.
- 2026
Biology (Basel)2 citations
How can I measure my own progress clearly?
Use the same measures the studies use: pain scores (VAS), joint-function scores, walking distance, comparison photos, or hair-density counts — recorded before the procedure and at each follow-up.
- Level ASystematic ReviewPubMed
Cool Fat, Hot Topic: A Systematic Review on Cryopreservation of Adipose Tissue.
Systematic Review, published in Tissue Eng Part B Rev (2026) — summary generated from the PubMed abstract.
- 2026
Tissue Eng Part B Rev - Level ASystematic ReviewEurope PMC
The suitability of mesenchymal stem cells for treating immune-mediated inflammatory skin diseases: a systematic review
Systematic Review with a reported sample of 609 on Hair Loss, Immune Modulation, Autoimmune Research, published in Dermatol Reports (2026) — summary generated from the PubMed abstract.
- 2026
- n = 609
Dermatol Reports - Level ASystematic ReviewEurope PMC
The Influence of GLP-1 Agonists on Human Mesenchymal Stem Cells: A Systematic Review
Systematic Review on Type 2 Diabetes, published in Stem Cell Rev Rep (2026) — summary generated from the PubMed abstract.
- 2026
Stem Cell Rev Rep2 citations
If I'm new to this, where should I start?
Start with the answers page for a short reply to your exact question, then read a foundational article, move to the condition page that matches you, and finish by opening Level A/B studies yourself.
- Level ASystematic ReviewPubMed
Cool Fat, Hot Topic: A Systematic Review on Cryopreservation of Adipose Tissue.
Systematic Review, published in Tissue Eng Part B Rev (2026) — summary generated from the PubMed abstract.
- 2026
Tissue Eng Part B Rev - Level ASystematic ReviewEurope PMC
The suitability of mesenchymal stem cells for treating immune-mediated inflammatory skin diseases: a systematic review
Systematic Review with a reported sample of 609 on Hair Loss, Immune Modulation, Autoimmune Research, published in Dermatol Reports (2026) — summary generated from the PubMed abstract.
- 2026
- n = 609
Dermatol Reports - Level AMeta-analysisEurope PMC
Efficacy and Safety of Fat Graft Myringoplasty Combined With Platelet-Rich Plasma for Managing Chronic Tympanic Membrane Perforations: A Systematic Review and Meta-Analysis
Meta-analysis with a reported sample of 522 on Chronic Wound, published in Clin Exp Otorhinolaryngol (2026) — summary generated from the PubMed abstract.
- 2026
- n = 522
Clin Exp Otorhinolaryngol1 citations