Immunity Peptide Cheat Sheet

Your complete reference for immune-supporting peptides. Includes dosage, benefits, and mechanisms for Thymosin Alpha 1, Thymalin, Selank, LL-37, KPV, and more.

15 peptides·4 categories

For research purposes only.

This cheat sheet is a research reference only — not for human consumption or therapeutic use.

sel

Selank

Cognitive

Purpose
Cognitive Enhancement
Vial Size
5 mg
BAC Water
Nasal spray - no BAC needed
Dosing
250–500 mcg
Frequency
Daily
Cycle
4–8 weeks

thymu

Thymulin

Immunity

Purpose
Immune & Anti-Aging
Vial Size
5 mg
BAC Water
2 mL
Dosing
50–200 mcg
Frequency
Daily
Cycle
4–8 weeks

cry

Crystagen

Immunity

Purpose
Longevity & Anti-Aging
Vial Size
20 mg
BAC Water
2 mL
Dosing
1–2 mg
Frequency
Daily
Cycle
20 consecutive days

ill

Selank, Semax, Pinealon, PE-22-28 (Illumineuro)

Cognitive

Purpose
Cognitive Enhancement
Vial Size
Varies
BAC Water
1–2 mL
Dosing
250–600 mcg
Frequency
Daily
Cycle
4–8 weeks

thym

Thymogen

Immunity

Purpose
Immune & Gut
Vial Size
1 mg
BAC Water
1 mL
Dosing
100 mcg
Frequency
Daily
Cycle
20 consecutive days

thymos

Thymosin Beta-4

Healing

Purpose
Recovery & Repair
Vial Size
5 mg
BAC Water
2 mL
Dosing
1–2.5 mg
Frequency
2×/week
Cycle
4–6 weeks

liv

Livagen

Longevity

Purpose
Longevity & Anti-Aging
Vial Size
10 mg
BAC Water
2 mL
Dosing
100–200 mcg
Frequency
Daily
Cycle
20 consecutive days

vip

VIP

Immunity

Purpose
Immune & Gut
Vial Size
5 mg
BAC Water
3 mL
Dosing
50–100 mcg
Frequency
Daily
Cycle
2–3 months

epi

Epitalon

Longevity

Purpose
Longevity & Anti-Aging
Vial Size
10 mg
BAC Water
3 mL
Dosing
1–5 mg
Frequency
Daily
Cycle
20 consecutive days

glu

Glutathione

Longevity

Purpose
Longevity & Anti-Aging
Vial Size
600 mg
BAC Water
5 mL
Dosing
100 mg
Frequency
2–3×/week
Cycle
8–12 weeks

thy

Thymalin

Immunity

Purpose
Immune & Gut
Vial Size
20 mg
BAC Water
2 mL
Dosing
10 mg
Frequency
Daily
Cycle
5–10 days

vil

Vilon

Immunity

Purpose
Immune & Gut
Vial Size
5 mg
BAC Water
3 mL
Dosing
5 mg
Frequency
Daily
Cycle
10–20 days

thymo

Thymosin Alpha 1

Immunity

Purpose
Immune & Gut
Vial Size
10 mg
BAC Water
2 mL
Dosing
1.5 mg
Frequency
Weekly (2×)
Cycle
6–12 weeks

kpv

KPV

Healing

Purpose
Immune & Gut
Vial Size
10 mg
BAC Water
2 mL
Dosing
200–500 mcg
Frequency
5 days on / 2 days off
Cycle
8 weeks

ll3

LL-37

Immunity

Purpose
Immune & Gut
Vial Size
5 mg
BAC Water
2 mL
Dosing
100 mcg
Frequency
Daily
Cycle
4–6 weeks

Download the Immunity Peptide Cheat Sheet PDF

Save a free printable PDF of this peptide dosage cheat sheet — vial sizes, BAC water ratios, dosing amounts, and cycle lengths in one quick-reference chart.

Immunity Peptide Cheat Sheet — Research Notes

Key considerations and protocol notes for each peptide in this cheat sheet.

Cognitive

sel

Longevity

Selank

Selank is a synthetic heptapeptide derived from tuftsin with anxiolytic, nootropic, and immunomodulatory properties; it is most commonly administered as a nasal spray and is noted for reducing anxiety while enhancing focus and memory without sedation or dependence.

Immunity

thymu

Immunity

Thymulin

Thymulin is a thymic nonapeptide hormone that promotes T-cell differentiation and immune regulation, with research suggesting anti-inflammatory and anti-aging properties. It requires zinc as a cofactor for biological activity and is studied for immune restoration, particularly in age-related immune decline.

Immunity

cry

Immunity

Crystagen

Crystagen is a short peptide bioregulator (tripeptide) derived from the cerebellum, primarily used to support brain and nervous system function, cognitive performance, and neuroprotection. It is commonly cycled in the Khavinson bioregulator protocol and may support neuronal health and age-related cognitive decline.

Cognitive

ill

Selank, Semax, Pinealon, PE-22-28 (Illumineuro)

Blend of Selank, Semax, Pinealon, and PE-22-28 targeting mood, memory, focus, and neurogenesis. Nasal spray formulations need no BAC water; injectable versions use 1–2 mL. Frequency: daily or 5 on/2 off. Dose is product-dependent.

Immunity

thym

Immunity

Thymogen

Thymogen (Glu-Trp) is a synthetic dipeptide derived from the thymus gland that modulates immune function by stimulating T-cell maturation and enhancing cellular immunity. It is used to support immune restoration, particularly in immunodeficient states, and has been researched for its anti-aging and immunomodulatory properties.

Healing

thymos

Longevity

Thymosin Beta-4

Thymosin Beta-4 (TB-500) is a naturally occurring peptide that promotes tissue repair, reduces inflammation, and accelerates healing of muscles, tendons, ligaments, and skin. It works by upregulating actin and promoting cell migration and angiogenesis, making it popular for injury recovery and wound healing.

Longevity

liv

Immunity

Livagen

Livagen is a short tetrapeptide (Lys-Glu-Asp-Ala) developed by the St. Petersburg Institute of Bioregulation, primarily studied for its ability to activate chromatin and restore gene expression in immune and cardiac cells, supporting longevity and cardiovascular health. It is used in peptide bioregulator protocols alongside other Khavinson peptides to support immune function and slow age-related cellular decline.

Immunity

vip

Immunity

VIP

Regulates inflammation

Longevity

epi

Immunity

Epitalon

Telomerase activator, used in cycles

Longevity

glu

Immunity

Glutathione

Detox, inflammation, skin

Immunity

thy

Immunity

Thymalin

Restores immune balance (subQ)

Immunity

vil

Immunity

Vilon

Mild immunomodulator (subQ)

Immunity

thymo

Immunity

Thymosin Alpha 1

The BPC-157 of immunity. Great for immune system

Healing

kpv

Immunity

KPV

Anti-inflammatory, gut repair (subQ)

Immunity

ll3

Immunity

LL-37

Antimicrobial and healing peptide (subQ)

Build your own protocol

Create a custom peptide stack tailored to your goals. Add peptides, set dosages, and share it with the community.

More Cheat Sheets

Explore other peptide reference sheets from PeptideMind.

Sexual Peptide Cheat Sheet
Sexual Peptide Cheat Sheet

6 peptides

Cognitive Peptide Cheat Sheet
Cognitive Peptide Cheat Sheet

16 peptides

Longevity Peptide Cheat Sheet
Longevity Peptide Cheat Sheet

42 peptides

Healing & Recovery Peptide Cheat Sheet
Healing & Recovery Peptide Cheat Sheet

18 peptides

Skin & Hair Peptide Cheat Sheet
Skin & Hair Peptide Cheat Sheet

7 peptides

Sleep Peptide Cheat Sheet
Sleep Peptide Cheat Sheet

3 peptides

Frequently asked questions

What is a peptide dosage calculator?

A peptide dosage calculator is a free tool that converts your vial size, bacteriostatic water volume, and target dose into an exact syringe draw volume. Instead of doing the reconstitution math by hand, you enter three inputs and instantly get the concentration of your solution and how many milliliters or syringe units to draw. This calculator works for single peptide compounds and multi-peptide blends.

How do I calculate peptide dosage from a vial?

To calculate your peptide dose, divide the total peptide content of your vial in micrograms by the volume of bacteriostatic water you added in milliliters. This gives you your solution concentration in mcg/mL. Then divide your target dose by that concentration to get your draw volume. For example, a 5mg (5,000 mcg) vial reconstituted with 2mL of BAC water gives a concentration of 2,500 mcg/mL. A 250 mcg dose would require drawing 0.1mL. This calculator automates all of those steps instantly.

How much Bacteriostatic water should I add to a peptide vial?

Most people add 2mL to 3mL of bacteriostatic water per vial, but the right amount depends on the dose you want to draw and the syringe size you are using. Adding 1mL to a 5mg vial gives you a concentration of 5,000 mcg/mL, making each dose very small in volume. Adding 2mL gives you 2,500 mcg/mL, which is easier to measure on a standard insulin syringe. A general guideline is to choose a volume that puts your typical dose somewhere between 10 and 30 units on a U-100 syringe. Use the calculator above to test different water volumes and find what works for your dose.

How are peptides different from proteins?

Both are made of amino acids, but peptides are much smaller than proteins. Because of their tiny size, peptides can act like tiny messengers in the body, sending specific signals to your cells to tell them exactly what to do.​

Calculate peptide research quantities

Reference our peptide dosage, blend, and accumulation calculators for research purposes. Enter vial size, reconstitution volume, and target research quantity to calculate draw volumes instantly. For research use only — not administration or dosing guidance of any kind.