MyDosage · Personal evidence dossier
Longevity & markers
Skin, cellular, and broad-system signals — preclinical to early human.
DSR-LONG-20260820
Issued August 20, 2026
Editorial · independent
01Top candidate
Thymosin α1
Thymic peptide (28-aa) · t½ ~2 h
Thymic-origin peptide marketed as Zadaxin in 30+ countries (not US) for chronic hepatitis B/C and as adjuvant.
Evidence Intelligence Score™
6.4/ 10Moderate
Strongest
Effects on the indexed outcomes are supported by randomized human data, with 1 citation on file.
Weakest
Effect sizes outside trial populations and durations beyond the studied window remain less characterized.
Unknowns
Interactions outside listed contraindications, long-term safety, and effect heterogeneity across age and sex are not fully resolved.
Outlook
Outlook: maturing. Expect the consensus to harden as multi-site replications publish.
02Ranked candidates
- 01Thymosin α1Thymic peptide (28-aa)6.4A
- 02GHK-CuCopper-binding tripeptide5.2B
- 03EpitalonPineal tetrapeptide3.9C
- 04ThymulinZinc-dependent thymic peptide3.7C
03Safety register
- Thymosin α1Active organ transplant (caution — immunostimulation)
- GHK-CuWilson's disease · Copper sensitivity
- EpitalonPregnancy · Active malignancy (theoretical)
- ThymulinNo human safety data