PE-22-28 dosage: reported doses and schedule
An experimental mood peptide studied in mice, with no human trials found.
Also called: PE 22-28, PE22-28, Mini-spadin, GVSWGLR.
Nootropic peptides · Shortened spadin analogue; experimental TREK-1 potassium-channel modulator · Evidence: Animal studies only.
Typical reported dose: 400 mcg once a day
- 400 mcg daily injection: 400 mcg once daily once daily, under the skin. Reported by users, rare report. Studied in: Adults posting personal use reports online; diagnosis and product identity unverified. (source)
- 200 mcg, 8 weeks on and 2 off: 200 mcg once daily once daily on treatment weeks, under the skin. Reported by users, rare report. Studied in: Adults posting personal use reports online; diagnosis and product identity unverified. (source)
- 300-600 mcg nasal report: Started at 300 mcg/day; later 600 mcg/day daily; distribution through the day not stated, nasal spray. Reported by users, rare report. Studied in: Adults posting personal use reports online; diagnosis and product identity unverified. (source)
- 400-1000 mcg on use days: 400-1000 mcg/day when used variable; some days skipped, nasal spray. Reported by users, rare report. Studied in: Adults posting personal use reports online; diagnosis and product identity unverified. (source)
- 160 mcg nasal blend, weekdays: 160 mcg PE-22-28 total per use day two sprays total daily, 5 days/week, nasal spray. Reported by users, rare report. Studied in: Adults posting personal use reports online; diagnosis and product identity unverified. (source)
- 800 mcg split-dose report: 400 mcg, then 400 mcg 6 hours later; one reported day two doses in one day, 6 hours apart, under the skin. Reported by users, rare report. Studied in: Adults posting personal use reports online; diagnosis and product identity unverified. (source)
These are doses reported in labels, trials or user reports, not a personal plan. Check the source behind each one.
Related to PE-22-28
- Semax: A Russian nasal peptide with limited human evidence for brain and nerve effects.
- Selank: A Russian nasal anxiety peptide with uncertain long-term benefit and safety.
- Dihexa: An experimental memory compound with disputed animal research and no established human dose.
- P21: An experimental memory peptide with animal research and no established human dose or safety profile.
- Cerebrolysin: An injectable pig brain mixture with mixed stroke, brain-injury and dementia evidence.
Sources
- 21 CFR 216.23 — Bulk drug substances that can be used to compound drug products in accordance with section 503A of the Federal Food, Drug, and Cosmetic Act., Office of the Federal Register · eCFR · 2026
- 503B Bulk Drug Substances List, FDA · FDA · 2026
- Bulk Drug Substances Nominated for Use in Compounding Under Section 503A of the Federal Food, Drug, and Cosmetic Act, FDA · FDA · 2026
- Bulk Drug Substances Used in Compounding Under Section 503A of the FD&C Act, FDA · FDA · 2026
- Cellulitis, NHS · NHS · 2026
- Medicines, European Medicines Agency · European Medicines Agency · 2026
- The 2026 Prohibited List, World Anti-Doping Agency · WADA · 2026
- Think twice before injecting peptides bought online: unauthorized products can seriously harm you, Health Canada · Health Canada · 2026
- Understanding your responsibilities when importing, compounding and supplying unapproved peptide products, Therapeutic Goods Administration · Therapeutic Goods Administration · 2026
- Bulk Drug Substances Nominated for Use in Compounding Under Section 503B of the Federal Food, Drug, and Cosmetic Act, FDA · FDA · 2025
- Supply unlicensed medicinal products (specials), MHRA · 2025
- Anaphylaxis, NHS · NHS · 2023
- Drugs@FDA: FDA-Approved Drugs, US Food and Drug Administration
- Frequently Asked Questions About Suicide, National Institute of Mental Health
- Multifactor Quality and Safety Analysis of Semaglutide Products Sold by Online Sellers Without a Prescription: Market Surveillance, Content Analysis, and Product Purchase Evaluation Study., Ashraf AR et al. · Journal of medical Internet research · 2024
Sources checked: 2026-10-18.
Information only, not medical advice. Peptifacts does not sell anything and does not link to sellers.