Thymalin protocol · PepGuide

Standard

Course (10 days)

50–100u

5–10 mg · Daily

IM or SubQ. Standard Khavinson course = 10 mg/day × 10 days (100 mg total).

Between courses

Repeat every 6 months (healthy) or every 3–4 months (immune-compromised).

Phase	How often	Dose	Units	Notes
Course (10 days)	Daily	5–10 mg	50–100u	IM or SubQ. Standard Khavinson course = 10 mg/day × 10 days (100 mg total).
Between courses	–	–	–	Repeat every 6 months (healthy) or every 3–4 months (immune-compromised).

Units column is at 10 mg/mL. Note: a thymic peptide complex, not the same as the single-peptide Thymosin Alpha-1, though their immune aims overlap.

Cycle & timing

Cycle: 10-day course, repeated every 6 months as the standard Khavinson protocol.

Timing: Any time of day.

Where: IM or SubQ. Rotate.

What to expect

Immune support over the course; longevity benefits are based on long-term Russian cohort data rather than Western RCTs.

How much to buy

For one 10-day course @ 10 mg/day = 100 mg:

10

× 10mg vials

Men & women

Unisex immune bioregulator, short courses, same in both sexes. Avoid in pregnancy.

Dilution calculator

Set to the guide's typical mix for Thymalin. Change anything to see where to draw.

Vial size

BAC water added

Dose you want

Draw to

100u

Volume

1.00 mL

Strength

10 mg/mL

Doses per vial

1

Assumes a U-100 insulin syringe (100 units = 1 mL). Double-check against the compound's page before you draw.

Recommended mixes

Vial	Water	Strength
10 mg	1 mL	10 mg/mL

10 mg: 1 unit = 0.1 mg. A 10 mg dose = 100 units (1 mL).

Storage

PowderFreeze-dried: -4°F.
MixedReconstituted: 36–46°F, use within the 10-day course.

Don't use if: Active autoimmune disease flare · Organ transplant / deliberate immunosuppression · Pregnancy and lactation · Hypersensitivity to thymic peptides

Stop if you notice

Autoimmune flare
Allergic reaction
Persistent injection-site reaction

Side effects

Generally well tolerated, mild injection-site reaction. Rare allergic response.

Drug interactions

Immunosuppressants/biologics: opposing immune effects, coordinate with a clinician. No well-characterized small-molecule interactions.

Labs

CBC with differential (immune cell trends) if used for immune goals. Monitor any autoimmune condition.

What these labs mean →

Warnings

Immune modulation, could theoretically aggravate autoimmune conditions. Most evidence is from Russian studies; limited Western RCT data. Quality varies, request a COA.

Patient education

Used as short pulsed courses, repeated 1–2×/year; not continuous. Different from Thymosin Alpha-1 (single peptide) though both are immune-focused. Evidence base is largely Russian cohort data. Request a COA; source quality matters.

These apply on top of the universal safety rules.

Pairs well with

Thymosin Alpha-1

immune

Thymosin Alpha-1

Epithalon

longevity bioregulator pairing

Epithalon

Other Khavinson bioregulators

in a course

Avoid with

Active autoimmune flare

immune modulation

Organ-transplant immunosuppression

Pregnancy

Can Thymalin + Thymosin Alpha-1 share a syringe?

Can share a syringe. Both are water-based. Combine them if you dose on the same schedule and site.

What it does

Thymalin is a polypeptide bioregulator extracted from the thymus, developed in the Khavinson (Russian) bioregulator program. It supports T-cell production and immune regulation, with reported longevity benefits in long-term Russian studies. Used as short pulsed courses rather than continuous dosing.

References

researchdosing peptidedosages PubMed thepeptidereport

From the guide, page 97.