What is the difference between Epitalon and Thymalin?

They are both Khavinson-style peptide bioregulators associated with different tissues (pineal vs thymus). Both are research-use-only reference compounds; this is a factual comparison only.

Which is cheaper per mg?

Compare the scanned cost per milligram below — it varies by vendor and vial size.

Research comparison

Research use only

Epitalon vs Thymalin

Epitalon and Thymalin are two of the best-known Khavinson-style peptide bioregulators, studied for tissue-signaling in research models. They are associated with different tissues. Here is a factual comparison and a per-mg price check.

Lowest cost per mg right now: Epitalon at $3.40/mg. Prices checked Aug 27, 2026

EpitalonPeptideLower $/mg

Epitalon is a short synthetic bioregulator peptide associated with pineal-tissue research models.

ClassPeptide

$3.40/mgfrom $29.99 · 3 vendors

Buy at Amino Club Compare vendors

ThymalinBioregulator

Thymalin is a peptide bioregulator preparation associated with thymus-tissue research models.

ClassBioregulator

$3.50/mgfrom $70 · 1 vendor

Buy at American Peptides Compare vendors

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Key differences

Associated tissue: Epitalon is studied in pineal models; Thymalin in thymus models.
Both are part of the Khavinson family of short peptide bioregulators.
Thymalin is typically supplied in larger (20 mg) vials than Epitalon (10 mg).

Epitalon vs Thymalin — FAQ

More comparisons

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All comparisons Price index ($/mg)

For laboratory research use only. Not for human or veterinary use, diagnosis, treatment, or consumption.