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

Illumineuro Blend

Cognitive

Purpose
Cognitive Enhancement
Vial Size
50 mg
BAC Water
3 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
2 mL
Dosing
1–5 mg
Frequency
Daily
Cycle
20 consecutive days, 1–2×/year

glu

Glutathione

Longevity

Purpose
Longevity & Anti-Aging
Vial Size
600 mg
BAC Water
5 mL
Dosing
100–200 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
250–500 mcg
Frequency
5 days on / 2 days off
Cycle
8 weeks on / 8 weeks off

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 lab-made peptide that can help calm anxiety and sharpen focus and memory, usually taken as a nasal spray. It doesn't make you drowsy and isn't habit-forming.

Immunity

thymu

Immunity

Thymulin

Thymulin is a natural hormone that helps train immune cells and may calm inflammation and slow some effects of aging on the immune system. It needs zinc to work properly, and people use it to support immune health, especially as they get older.

Immunity

cry

Immunity

Crystagen

Crystagen is a very short peptide meant to support brain and nervous system health. It's taken in short cycles and may help protect brain cells and support memory as you age.

Cognitive

ill

Illumineuro Blend

This is a blend of four brain-focused peptides (Semax, Selank, Pinealon, and PE-22-28) combined to support mood, memory, focus, and new brain cell growth. It comes as a nasal spray or injection, usually taken in the morning on an empty stomach, but there's no research yet on this exact four-peptide combination.

Immunity

thym

Immunity

Thymogen

Thymogen is a very small peptide that helps the immune system mature and work better. It's used to support immune recovery, especially when someone's immune system is weakened, and is also studied for anti-aging benefits.

Healing

thymos

Longevity

Thymosin Beta-4

Thymosin Beta-4 (also called TB-500) is a peptide that helps the body heal tissue faster, calm inflammation, and repair muscles, tendons, ligaments, and skin. It's popular for recovering from injuries and wounds.

Longevity

liv

Immunity

Livagen

Livagen is a short peptide studied for helping cells 'turn back on' genes related to immune and heart health, which may support longevity. It's used alongside other similar peptides to support immune function and slow age-related decline.

Immunity

vip

Immunity

VIP

VIP helps regulate inflammation in the body.

Longevity

epi

Immunity

Epitalon

Epitalon may help activate an enzyme called telomerase, which is linked to cell aging, and is typically used in short cycles rather than continuously. A full cycle usually totals around 100 mg.

Longevity

glu

Immunity

Glutathione

Glutathione is a powerful antioxidant that supports detoxification, helps calm inflammation, and can improve skin health. Keep the reconstituted vial refrigerated and protected from light, and use it within 2 to 3 weeks, since it breaks down faster than most peptides.

Immunity

thy

Immunity

Thymalin

Thymalin helps restore balance to the immune system and is given as an injection under the skin.

Immunity

vil

Immunity

Vilon

Vilon is a gentle immune-system support peptide given as an injection under the skin.

Immunity

thymo

Immunity

Thymosin Alpha 1

Thymosin Alpha 1 is often called the 'BPC-157 of the immune system' because it's so widely used to support healthy immune function.

Healing

kpv

Immunity

KPV

KPV helps calm inflammation and supports gut repair, given as an injection under the skin. Usually taken in the morning.

Immunity

ll3

Immunity

LL-37

LL-37 has antimicrobial properties and supports healing, given as an injection under the skin.

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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.