Prostamax
What it’s used for
Prostamax is a four-amino-acid peptide (KEDP) from the bioregulator family. People use it for prostate support, and it's also explored for aging and immunity. Evidence is limited to animal prostate studies and lab work on human blood cells; human prostate or urinary benefits haven't been shown.
- Prostate support Lab & animal research Used for prostate health. Animal studies looked at chronic prostatitis, prostate enlargement and fibrosis.
- Anti-aging use Community reports Also used in anti-aging protocols, run as short 10–20 day courses.
- Chromatin changes Lab & animal research Lab studies on older people's white blood cells found changes in how tightly their DNA is packed.
What to expect
- Weeks 1–2
Subtle changes
- Weeks 2–3
Tissue and symptom changes reported
- Weeks 3–4
Peak effects
Side effects & safety
Side effects
- Local irritation
- Stomach or gut upset
- Headache
Stop and get help if
- Changes in urination or prostate symptoms
- Signs of infection
- Headache or stomach distress that doesn't go away
- Signs of an allergic reaction
Which symptoms mean call 911 or see a doctor
Avoid or check first if
- Active prostate cancer
- Taking 5-alpha-reductase inhibitors — overlapping effects on the prostate
- On testosterone or TRT — prostate and PSA concerns
In sport
Likely banned at all times. One of the Khavinson short peptides, with no medicine approval anywhere we checked, so it meets the S0 definition.
Which peptides are banned in sport
How much people take
Injectable
Injectable
For every goal: Under the skin
- Prostate health support Once daily 0.5–1 mg
- Anti-aging protocol Once daily for 10–20 days 0.75 mg
Similar doses appear in 4 other sources
Oral
For every goal: Oral
- Prostate health support Once daily on empty stomach · capsule 0.5–1 mg
- Standard protocol 30 minutes before meals 1 capsule daily
Similar doses appear in 1 other source
How to mix and store it
How many units do I draw?
Injectable
Open the full calculator
Injectable
How to mix 5 steps with bacteriostatic water · vial check
How to mix
- 1 Wipe both tops Wash your hands, then swab the rubber tops of the peptide vial and the water vial with alcohol. Let them dry.
- 2 Draw the water Use bacteriostatic (BAC) water — sterile water with a preservative, sold for mixing peptides . With a new sterile syringe, draw the amount you entered in the calculator. A 1 mL syringe filled twice is 2 mL.
- 3 Run it down the wall Push the needle into the peptide vial at an angle and let the liquid trickle down the glass, not onto the powder.
- 4 Swirl, don’t shake Gently swirl or roll the vial until the liquid is completely clear. Give it a few minutes if needed.
- 5 Label the vial Write the date and what you mixed (for example 5 mg + 2 mL) on the vial.
This is general practice. If your product came with its own diluent or instructions, follow those. Not sure what to buy? See the supplies checklist .
Is my vial OK?
Good signs
- White freeze-dried powder
- Clear mixed solution
Don’t use if
- Discolored or clumped powder
- Cloudy solution
Injecting under the skin Where, rotating sites, which syringe
- Where: belly (at least 2 in / 5 cm from the navel), front of the thigh, or back of the upper arm.
- Rotate sites each time and skip bruised, scarred or sore skin.
- Syringe: most people use a U-100 insulin syringe with a short, thin needle (29–31 gauge, 8 mm or shorter).
- How: wipe with alcohol and let it dry, pinch the skin, go in at 45–90°, push slowly. Use each syringe once.
General practice for under-the-skin injections, not specific to Prostamax.
The full guide: how to inject safely
Storage
Fridge · 14 days Reported shelf life, not lab-tested. Mixed vial at 2–8°C (35.6–46.4°F), use within 14 days. Mix gently; don't shake hard
Oral
Ready to use
The oral form doesn’t need mixing.
Storage
Room temp Capsules; keep in a cool, dry place
Combining it with others
What the research says
Mostly animal studies
- Human prostate or urinary benefit, a treatment dose and side-effect rates haven't been shown.
- Being a short peptide doesn't prove it's absorbed when swallowed.
- Expected timelines are extrapolated from animal data, not measured in people.
- Human half-life is unknown, and the research doesn't confirm the identity or purity of products bought separately.
- No controlled interaction study exists; stack compatibility ratings are reference claims, not safety evidence.
What studies found
- Chromatin measurements in lymphocytes The checked study examined chromatin thermal behavior in lymphocytes. It did not evaluate urinary symptoms or administer a validated prostate treatment to patients.
A half-life hasn’t been verified for this compound.
What it’s made of
- Length
- 4 amino acids
- Molecular weight
- 487.5 Da
- Formula
- Not verified
Sequence 4 · N → C
- K
- E
- D
- P
Sequence and formulation must be confirmed for the exact material; similarly named products are not necessarily interchangeable.
Length and weight come from a reference listing and were not independently confirmed.
Doses in animal and lab studies 1
Doses used in animal or cell studies. They don’t translate directly to people.
- Preclinical reference (rat model) 20 mcg/kg · Daily for 15 days · IM
Sources
Sources 10
How this page was made
How it may work: Proposed prostate-cell regulation and chromatin effects; oral uptake is uncertain.
Other names: KEDP
Preparation in studies: A product-specific preparation or sterility protocol has not been verified.
Short peptide length does not prove oral absorption or equivalence. Reference compatibility claims are not clinical safety evidence.
Research last checked: Oct 12, 2026 (a targeted search, not a full review).
Community doses, how long people take it, timing and storage are compiled with AI from public peptide guides, clinics and forums, cross-checked against other sources where we could, and rewritten in plain language. “Combining it with others” is an AI assessment of how the compounds work. Study notes are written from each paper’s abstract where one exists. How we source
Original source guide