Cognitive Peptide Cheat Sheet
Explore the ultimate cognitive peptide cheat sheet with dosage guidelines, benefits, mechanisms, and comparisons for Semax, Selank, Dihexa, PE-22-28, and more. A quick reference for nootropic peptide research.
For research purposes only.
This cheat sheet is a research reference only — not for human consumption or therapeutic use.
| Peptide | Purpose | Vial Size | BAC Water | Dosing | Frequency | Cycle |
|---|---|---|---|---|---|---|
sel SelankCognitive | Cognitive Enhancement | 5 mg | Nasal spray - no BAC needed | 250–500 mcg | Daily | 4–8 weeks |
p21 P21Cognitive | Cognitive Enhancement | 5 mg | 2 mL | 50–100 mcg | Daily | 20 consecutive days |
cer CerebrolysinCognitive | Cognitive Enhancement | 60 mg | 3 mL | 20–32 mg | Daily | 10–20 consecutive days, repeated 2–4x per year |
cor CortagenCognitive | Cognitive Enhancement | 10 mg | 2 mL | 100–200 mcg | Daily | 10–20 days |
ill Illumineuro BlendCognitive | Cognitive Enhancement | 50 mg | 3 mL | 250–600 mcg | Daily | 4–8 weeks |
nas NA Semax AmidateCognitive | Cognitive Enhancement | 5 mg | 2 mL | 100–300 mcg | Daily | 4–8 weeks |
pin PinealonCognitive | Cognitive Enhancement | 10 mg | 2 mL | 1–2 mg | Daily | 10–20 consecutive days |
sema SemaxCognitive | Cognitive Enhancement | 10 mg | 2 mL | 300–800 mcg | Daily | 2–4 weeks on, 1–2 weeks off |
ada AdalankCognitive | Cognitive Enhancement | 5 mg | 2 mL | 250–500 mcg | Daily | 4–8 weeks |
pe2 PE-22-28Cognitive | Cognitive Enhancement | 5 mg | 2 mL | 500 mcg–1 mg | Daily | 4–8 weeks |
dih DihexaCognitive | Cognitive Enhancement | 50 mg | N/A | 10–30 mg | Daily | 4–8 weeks |
vip VIPImmunity | Immune & Gut | 5 mg | 3 mL | 50–100 mcg | Daily | 2–3 months |
dsi DSIPSleep | Sleep & Anti-Aging | 5 mg | 3 mL | 100–300 mcg | Daily | 4–8 weeks |
hum HumaninLongevity | Longevity & Anti-Aging | 10 mg | 3 mL | 10 mg | 1–2×/week | 4–6 weeks |
ara Ara 290Healing | Recovery & Repair | 5 mg | 2 mL | 4 mg | Daily | 4–12 weeks |
oxy OxytocinHormonal | Sexual Health | 10 mg | 2 mL | 20–50 mcg | As needed | As needed |
sel
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
p21
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 5 mg
- BAC Water
- 2 mL
- Dosing
- 50–100 mcg
- Frequency
- Daily
- Cycle
- 20 consecutive days
cer
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 60 mg
- BAC Water
- 3 mL
- Dosing
- 20–32 mg
- Frequency
- Daily
- Cycle
- 10–20 consecutive days, repeated 2–4x per year
cor
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 10 mg
- BAC Water
- 2 mL
- Dosing
- 100–200 mcg
- Frequency
- Daily
- Cycle
- 10–20 days
ill
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 50 mg
- BAC Water
- 3 mL
- Dosing
- 250–600 mcg
- Frequency
- Daily
- Cycle
- 4–8 weeks
nas
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 5 mg
- BAC Water
- 2 mL
- Dosing
- 100–300 mcg
- Frequency
- Daily
- Cycle
- 4–8 weeks
pin
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 10 mg
- BAC Water
- 2 mL
- Dosing
- 1–2 mg
- Frequency
- Daily
- Cycle
- 10–20 consecutive days
sema
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 10 mg
- BAC Water
- 2 mL
- Dosing
- 300–800 mcg
- Frequency
- Daily
- Cycle
- 2–4 weeks on, 1–2 weeks off
ada
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 5 mg
- BAC Water
- 2 mL
- Dosing
- 250–500 mcg
- Frequency
- Daily
- Cycle
- 4–8 weeks
pe2
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 5 mg
- BAC Water
- 2 mL
- Dosing
- 500 mcg–1 mg
- Frequency
- Daily
- Cycle
- 4–8 weeks
dih
Cognitive
- Purpose
- Cognitive Enhancement
- Vial Size
- 50 mg
- BAC Water
- N/A
- Dosing
- 10–30 mg
- Frequency
- Daily
- Cycle
- 4–8 weeks
vip
Immunity
- Purpose
- Immune & Gut
- Vial Size
- 5 mg
- BAC Water
- 3 mL
- Dosing
- 50–100 mcg
- Frequency
- Daily
- Cycle
- 2–3 months
dsi
Sleep
- Purpose
- Sleep & Anti-Aging
- Vial Size
- 5 mg
- BAC Water
- 3 mL
- Dosing
- 100–300 mcg
- Frequency
- Daily
- Cycle
- 4–8 weeks
hum
Longevity
- Purpose
- Longevity & Anti-Aging
- Vial Size
- 10 mg
- BAC Water
- 3 mL
- Dosing
- 10 mg
- Frequency
- 1–2×/week
- Cycle
- 4–6 weeks
ara
Healing
- Purpose
- Recovery & Repair
- Vial Size
- 5 mg
- BAC Water
- 2 mL
- Dosing
- 4 mg
- Frequency
- Daily
- Cycle
- 4–12 weeks
oxy
Hormonal
- Purpose
- Sexual Health
- Vial Size
- 10 mg
- BAC Water
- 2 mL
- Dosing
- 20–50 mcg
- Frequency
- As needed
- Cycle
- As needed
Download the Cognitive 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.
Cognitive Peptide Cheat Sheet — Research Notes
Key considerations and protocol notes for each peptide in this cheat sheet.
Cognitive
sel
Longevity
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.
Cognitive
p21
Longevity
P21 is a lab-made peptide that may help brain cells grow and support memory, without the side effects of the natural hormone it's based on. People usually take it as a nasal spray or a small injection under the skin.
Cognitive
cer
Longevity
Cerebrolysin is a mix of nutrients extracted from pig brain tissue that supports brain cell growth and repair. Doctors use it to help people recover from strokes, dementia, and brain injuries, and some people use it off-label to sharpen thinking and support brain health.
Cognitive
cor
Longevity
Cortagen is a short peptide designed to support brain function by helping neurons build the proteins they need to work well. People take it in short courses to support memory, focus, and brain protection.
Cognitive
ill
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.
Cognitive
nas
Longevity
NA Semax Amidate is an improved, longer-lasting version of Semax that the body absorbs and holds onto better. People use it to think more clearly, protect the brain, boost a brain-growth hormone called BDNF, and ease anxiety, usually via injection or nasal spray.
Cognitive
pin
Longevity
Pinealon is a very short peptide studied for protecting brain cells and supporting memory. It may also help reduce stress-related damage in the brain and support your body's natural sleep-wake cycle, and it's usually taken in short cycles.
Cognitive
sema
Longevity
Semax is a well-known Russian peptide that boosts brain chemicals (BDNF and NGF) linked to memory, focus, and brain protection. It's usually taken as a nasal spray, either every day or on a 5-days-on, 2-days-off schedule.
Cognitive
ada
Longevity
Adalank (NA-Selank Amidate) is a stabilized version of Selank designed to last longer in the body. People use it to ease anxiety and support focus and mood without feeling sedated or becoming dependent on it.
Cognitive
pe2
Longevity
PE-22-28 is an experimental peptide being studied as a fast-acting option for depression, anxiety, and brain protection. It's thought to work by boosting serotonin activity and encouraging new brain cell growth.
Cognitive
dih
Longevity
Dihexa is a nootropic peptide that may help the brain form new connections between neurons, supporting memory and learning. It's typically taken orally or applied to the skin and is reported to be far more potent than the body's natural BDNF.
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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.
