Peptide
Reference library
Educational peptide reference — research use only.
Research & educational use only
For laboratory and educational research only. Not for human or veterinary consumption. This is not medical advice. Always follow applicable laws and consult qualified professionals.
The calculator performs unit math for research reference. It must not be used to plan or guide dosing in humans or animals. Verify all figures independently in your lab protocol.
Epitalon (Epithalon)
A tetrapeptide studied in telomere and aging-related research models.
- Half-life (approx.)
- Short — minutes (approx., rapid peptidase clearance)
- Diluent
- Bacteriostatic water (0.9% benzyl alcohol)
- Common vials
- 10, 50 mg
Half-life figures are literature approximations for educational reference — not pharmacokinetic advice.
Overview
Epitalon (Epithalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) studied for telomerase activation in cell-culture and rodent aging models. Khavinson-group literature links it to pineal peptide bioregulation and circadian gene expression. Tetrapeptide bioregulator associated with telomerase and pineal aging research in cell culture.
Structure & identity
Tetrapeptide Ala-Glu-Asp-Gly (AEDG)
- Sequence / structure
- Tetrapeptide Ala-Glu-Asp-Gly (AEDG)
Mechanism
Tetrapeptide reported to upregulate telomerase (hTERT) in cell-culture aging models. hTERT upregulation reported in vitro — systemic aging translation remains preclinical.
Studies & clinical programs
Telomerase activity assays
Published research models
- Peer-reviewed literature documents endpoints under Telomerase activity assays experimental designs.
Pineal aging rodent models
Published research models
- Peer-reviewed literature documents endpoints under Pineal aging rodent models experimental designs.
Research models in literature
- Telomerase activity assays
- Pineal aging rodent models
Literature highlights
- Telomerase (hTERT) upregulation reported in cell-culture aging models.
- Pineal and circadian gene expression studied alongside other bioregulator peptides.
- Short tetrapeptide subject to rapid peptidase clearance in systemic PK work.
Combination research notes
Often grouped with thymalin and pinealon in bioregulator research.
Key targets & pathways
Research areas
Routes in research literature
Also known as
Stability & storage phases
| Phase | Condition | Guidance |
|---|---|---|
| Lyophilized | Sealed vial, refrigerated (2–8 °C) | Intact lyophilized cake or powder is typically stable for months to years per published stability data; protect from moisture, light, and repeated freeze-thaw of the dry vial. |
| Reconstituted | Bacteriostatic water (0.9% benzyl alcohol), refrigerated | Most aqueous peptide solutions remain usable for approximately 2–4 weeks refrigerated; verify published stability data and label with reconstitution date. |
| Working aliquots | Pre-drawn syringes or microtubes, frozen (−20 °C) | Aliquot promptly after mixing to limit freeze-thaw cycles on the main vial; thaw once and use to reduce protease-mediated degradation. |
Stability windows are formulation-dependent — verify published data and your lab SOP.
Reconstitution reference table
| Vial (mg) | Diluent (mL) | mcg/mL | Units @ 100 mcg | Units @ 250 mcg | Units @ 500 mcg |
|---|---|---|---|---|---|
| 10 | 2 | 5000.0 | 2 | 5 | 10 |
| 50 | 2 | 25000.0 | 0.4 | 1 | 2 |
U-100 insulin syringe scale (100 units = 1 mL). Illustrative only — not dosing guidance.
Reconstitution steps
- Allow vial to reach room temperature (15–30 min)
- Swab rubber stopper with alcohol prep pad
- Draw calculated bacteriostatic water into syringe
- Inject diluent slowly down vial wall — do not spray directly onto cake
- Gently swirl until fully dissolved — do not shake vigorously
- Label with date, concentration, and diluent volume
- Refrigerate and use within your lab stability window
Often reconstituted with 1–2 mL bacteriostatic water.
Laboratory record checklist
- Compound identity recorded in lab notebook (name, lot, preparation date)
- Analytical identity cross-checked against published sequence or structure
- Potency or concentration documented from analytical certificate when available
- Purity or HPLC data filed when provided with research material
- Appearance noted: intact lyophilized cake or uniform powder
- Sterility / endotoxin report archived when available
- Storage temperature applied immediately per published stability guidance