← Our writersClinical-evidence editor
Leah Garner
Reads the study before the headline, and says so when the human evidence is thin or missing.
Leah Garner edits the clinical side of This Peptide: which studies exist for each peptide, who was in them, and at what dose. For many of these compounds the honest answer is that the human evidence is small, early or absent, and her pages say that in plain words rather than borrowing certainty from animal work. Every figure links to the paper, label or regulatory document it came from. No degrees, affiliations or clinical credentials are claimed here; the sourcing is the credential.
What they cover
- Human versus animal and in-vitro evidence
- Randomized trial design and endpoints
- FDA labels and approval documents
- Adverse events and dropout reporting
- Peptide dosing in published studies
Articles by Leah Garner
75 pieces- Compounded Semaglutide Dosing Errors: Where Confusion StartsSafety
- How to Report Peptide Side Effects: MedWatch and the Details to SaveSafety
- Peptide Blends Safety: Does Combining Ingredients Improve the Evidence?Safety
- Peptide Clinical Trials: How to Check What a Study Actually TestsSafety
- Peptide Vial Beyond Use Date: The Label and the First-Puncture ClockSafety
- Semaglutide Sodium vs Base: Why the Ingredient MattersSafety
- What Does FDA Approved Mean for a Peptide Medicine?Safety
- Tirzepatide Headache: What the Labels and Trial Results RecordedSafety
- Does Tirzepatide Make You Tired? What the Trials and Labels ShowSafety
- Ozempic Stomach Paralysis: What Trials and Case Reports ShowSafety
- Does NAD Cause Cancer? What Human and Animal Studies ShowEvidence
- NAD for Parkinson's: What the Human Trials Have Found So FarEvidence
- Can Ozempic Cause Kidney Problems? Kidney Injury, Dehydration and the FLOW TrialSafety
- Ozempic Pancreatitis: The Label Warning, the Symptoms and What Trials ShowSafety
- Ozempic and Depression: What FDA's Review of Suicidal Thoughts FoundSafety
- Ozempic Blindness: NAION, Vision Loss and What Regulators ConcludedSafety
- Ozempic Thyroid Cancer Risk: The Boxed Warning, Rodent Data and Human StudiesSafety
- Does Ozempic Cause Dehydration? The Kidney Warning, Trial Rates and Fluid GuidanceSafety
- Ozempic Feet: Foot Drop, Numbness and Heel Pain in the GLP-1 EvidenceSafety
- Ozempic Breasts: What Studies Show About Breast Size, Shape and DensityEvidence
- Ozempic Butt: What the Trials Measured Below the Waist, and What They Never DidEvidence
- GLP-1 Medications for Seniors: What the Labels Say After 65Safety
- Ozempic While Breastfeeding: What the Labels and Milk Studies ShowSafety
- Glutathione for Chemotherapy Neuropathy: What the Trials FoundEvidence
- Vyleesi Drug Interactions: Birth Control, Naltrexone and AlcoholSafety
- Ozempic and Gallbladder Problems: What the Labels and Trials ShowSafety
- Ozempic and Anesthesia: What Guidance Says About SurgerySafety
- Why Is B12 Added to Semaglutide? Glycine, B6 and Niacinamide TooSafety
- Cagrilintide: What the Amylin Trials Actually MeasuredEvidence
- SS-31 peptide: the phase 3 result sellers do not mentionEvidence
- KPV peptide: what the research actually showsEvidence
- BPC 157 Before and After: What the Human Reports MeasuredEvidence
- Ozempic and Sex Drive: What the Evidence ShowsEvidence
- Tirzepatide and Birth Control: What the Label RequiresSafety
- MK-677 Side Effects: What the Ibutamoren Trials RecordedSafety
- Thymosin Alpha 1: What the Human Trials Actually MeasuredEvidence
- What Happens When You Stop Taking Tirzepatide: The Trial DataEvidence
- How Long Does It Take for Tirzepatide to Work? Appetite, Weight and the Week-12 MarkEvidence
- Ozempic and Alcohol: Can You Drink on Semaglutide, and Does It Curb Drinking?Safety
- Semaglutide Headache: What the Trials Recorded and What Headache Studies FoundSafety
- How Much Weight Can You Lose on Semaglutide? What the STEP Trials MeasuredEvidence
- Liraglutide Dosage: The Saxenda and Victoza Dose Steps, and the 16-Week RuleEvidence
- Ozempic and Pregnancy: What the Label Says and What Exposed Pregnancies ShowedSafety
- How Much Weight Can You Lose on Tirzepatide? What the SURMOUNT Trials MeasuredEvidence
- Semaglutide Dosage: The Wegovy and Ozempic Dose Steps, and the New 7.2 mg CeilingEvidence
- Semaglutide Hair Loss: How Often It Happens, in Whom, and WhySafety
- NAD Dosage: What IV, Injection and Oral Studies Actually UsedEvidence
- Semaglutide Side Effects: What the Wegovy Trials and Label RecordedSafety
- Zepbound for Sleep Apnea: What the SURMOUNT-OSA Trials FoundEvidence
- Foundayo: Orforglipron's Doses, Trial Results and Side EffectsEvidence
- GHK-Cu Dosage: What Studies Applied, and Why No Injected Dose ExistsFormats
- Glutathione Dosage: What Oral, IV and Nasal Trials Actually GaveEvidence
- Tirzepatide Side Effects: What the Zepbound Label and Trials RecordedSafety
- Bacteriostatic Water for Peptides: What the Labels SayFormats
- BPC-157: What Human Evidence Actually ExistsEvidence
- BPC-157 Side Effects: What Has Been Recorded in PeopleSafety
- Bremelanotide Side Effects: Nausea, Blood Pressure and Skin DarkeningSafety
- Epitalon: What the Telomere Claims Rest OnEvidence
- GHK-Cu Side Effects: What Topical Studies Report, and the Injected UnknownsSafety
- Glutathione Injections: What the Evidence ShowsEvidence
- Glutathione Side Effects: What Injection, IV and Oral Studies ReportedSafety
- Ipamorelin: What the Human Evidence Actually ShowsEvidence
- Ipamorelin Side Effects: What the Few Human Trials RecordedSafety
- Kisspeptin: What Human Studies Show About Libido and Reproductive HormonesEvidence
- MOTS-c Dosage: What Mouse and Human Studies Used, and Why No Dose Is SetSafety
- NAD+ Injections: The Benefits Claimed, and What Studies in People MeasuredEvidence
- NAD Side Effects: What Injection, IV and Oral Precursor Studies ReportedSafety
- PT 141 for Men: What the Erectile Dysfunction Trials FoundEvidence
- PT-141 Nasal Spray: Why Intranasal Bremelanotide Was Dropped in TrialsSafety
- Sermorelin Side Effects: What the Trials and FDA Record ReportSafety
- Tesamorelin: What the Egrifta Trials Showed, and What They Did NotEvidence
- Tesamorelin Side Effects: What the Egrifta Trials and Label RecordedSafety
- Tirzepatide Dosage: The Label's Dose Steps and What the SURMOUNT Trials UsedEvidence
- Tirzepatide vs Semaglutide: What the Head-to-Head Trials FoundEvidence
- Wegovy Pill: What the Oral Semaglutide Weight Trials ShowedEvidence