Are these ever stacked?

Yes, in longevity programs. They target different systems and don't interfere pharmacologically.

Which has stronger clinical evidence?

Thymosin Alpha-1 has substantially more clinical trial support, particularly in immune indications.

Clinical comparison · Longevity / immune

Epitalon vs Thymosin Alpha-1

Epitalon is a short-cycle longevity peptide with pineal/telomerase modulation. Thymosin Alpha-1 is an immunomodulator with the strongest clinical support for immune resilience.

Attribute

Epitalon

Thymosin Alpha-1

Mechanism

Tetrapeptide; upregulates telomerase and modulates pineal function in preclinical models.

Immunomodulatory peptide; enhances T-cell maturation and dendritic cell function.

Standard dosing

5–10 mg SC daily for 10–20 day cycles, 2–3x per year.

1.6 mg SC twice weekly for 4–12 weeks.

Indications

Longevity
Sleep and circadian support

Immune support
Chronic infection adjunct
Post-illness recovery

Strengths

Short cycled protocol
Low side-effect burden

Broad immune modulation
Well-tolerated long-term

Cautions

Evidence largely preclinical
Not a monotherapy for measurable outcomes

Slow onset
Cost per course

Choose Epitalon when

Anti-aging cycling program with sleep/circadian benefits.

Wholesale Epitalon →

Choose Thymosin Alpha-1 when

Immune support, chronic infection adjunct, or post-illness recovery.

Wholesale Thymosin Alpha-1 →

FAQs

Are these ever stacked?: Yes, in longevity programs. They target different systems and don't interfere pharmacologically.
Which has stronger clinical evidence?: Thymosin Alpha-1 has substantially more clinical trial support, particularly in immune indications.