Epitalon / thymalin stack: what's in it

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By Ellum EditorialUpdated October 12, 2026AI use

The short answer

Epitalon / thymalin stack combines Epitalon and Thymalin.

What it is
Khavinson bioregulator stack (pineal + thymus).
What people look into
Aging, sleep
Results for one compound don't tell you what the two do together.

The parts

Epitalon Index
Not FDA-approved · advisory vote July 2026 · no FDA decision
Thymalin Index
Approved outside the US
WADA 2026: Not named; approved in Russia, so S0 does not apply

Regulatory status by component

Not FDA-approved How we label status

As of October 4, 2026, Epitalon is not FDA-approved. On July 24, 2026, FDA's compounding advisory committee voted to recommend adding it to the 503A bulks list; FDA staff had recommended against it. FDA has not proposed that change. See Epitalon in the Index →
As of October 4, 2026, Thymalin is not FDA-approved for any use and is not on FDA's 503A bulks list. See Thymalin in the Index →

Status as of October 4, 2026

As a combination: No category as a combination (see components)

Epitalon: as of October 4, 2026 · source
Thymalin: as of October 4, 2026 · source

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The research on Epitalon / thymalin stack

Key facts

Also known as: epitalon thymalin, khavinson stack

Parts: Epitalon and Thymalin
Route: injectable;nasal

References

Status sources

Sources as of October 4, 2026

What this doesn’t establish

Results for one compound don't tell you what the two do together.