Reviewed by the PeptideMind Team · Updated July 15, 2026

PNC-27 Dosage Guide, Benefits & Side Effects

PNC-27 selectively lyses HDM-2-expressing cancer cells while sparing healthy tissue, showing tumor eradication across several preclinical models.

As seen on

PNC-27 Dosage Guide for Cancer Research / Anti-TumorPNC-27 Dosage Calculator

PNC-27 is an experimental peptide being studied for its ability to target and destroy cancer cells while leaving healthy cells alone. It's still in early research, so safe and effective human dosing isn't well established.

Vial size

5 mg

Bacteriostatic water

2 mL

Dosing

1–5 mg

Frequency

2–3×/week

Cycle

4–8 weeks

Benefit

Cancer Research / Anti-Tumor

Explore calculators

Basic Dosage Calculator

Calculate peptide doses with our visual syringe guide.

Peptide per vial

Target research quantity

Bac water added

What is PNC-27?

PNC-27 is a lab-engineered peptide designed specifically to seek out and destroy cancer cells while leaving healthy cells alone. It works by targeting a protein found on the surface of cancer cells, causing those cells to rupture and die, while normal cells don't have the same target and stay unaffected. It's studied in early lab research across several cancer types, including breast, skin, blood, pancreatic, ovarian, and cervical cancers.

Longevity

Research targets include cellular aging, senescence, and long-term healthspan.

Longevity

pnc

Is PNC-27 FDA approved?

PNC-27 is not an FDA-approved drug. It is intended for research purposes only and is not approved for human consumption, diagnostic, or therapeutic use.

Research Use Only

PNC-27 has not been evaluated by the FDA for safety or efficacy in humans.

No Clinical Oversight

Not manufactured under FDA-regulated quality or clinical standards.

Unregulated Sourcing

Purity, dosing, and sourcing are not verified through FDA testing or oversight.

A smartphone screen displaying FDA status for a drug, indicating "FDA approved drug: No" and "Classification: Research use only." A banner notes "Research Only" with the disclaimer "not for human use," emphasizing its intended use for laboratory and analytical purposes.

Our top-rated vendor

View all

Our rankings are based solely on third-party lab testing rigor, COA transparency, and pricing — no paid placements, no affiliate influence. We update this list as new data comes in.

Based on current scores, this vendor ranks highest across those criteria.

Protide Health

#1 Rated Research Peptide Supplier

How Does PNC-27 Work?

It targets a protein (HDM-2) that shows up on the surface of cancer cells but not healthy ones, using that as a homing marker. Once attached, it punches holes straight through the cancer cell's outer membrane, causing it to break down and die.

Finds a cancer marker

Targets a protein found on cancer cells but not healthy ones.

Punches through the membrane

Creates pores straight through the cancer cell's outer membrane.

Cell breaks down

Causes the targeted cell to break down and die.

How to reconstitute PNC-27

View guide

The materials you'll need and step-by-step instructions for safely mixing PNC-27 with bacteriostatic water.

Materials needed

Your PNC-27 vial (lyophilized)

Alcohol swabs

Bacteriostatic sterile water

3 mL syringes (Luer Lock tip)

25G or 27G needles (Luer Lock). Other gauges may also be acceptable.

Sharps container (optional)

Remove the caps

Remove the caps from both your PNC-27 vial and your bacteriostatic water vial.

Sanitize the rubber stoppers

Wipe down the rubber stoppers on both vials with alcohol swabs and let them dry for about 3 minutes.

Attach the needle

Take your 3 mL syringe and needle. Twist the needle's plastic hub into the Luer Lock tip on the syringe to secure it.

Draw the bac water

Pull back on the plunger to draw your desired volume of bacteriostatic water. If you overfill, just push the excess back in until you reach the right marker on the syringe.

How much bac water? PNC-27 typically comes in a 5 mg vial. We recommend 2 mL of bacteriostatic water, though anywhere between 1 mL and 3 mL is acceptable. For larger vials you can use up to 5 mL — more bac water makes microdosing easier, but insulin needles usually max out at 1 mL per injection. That means a lot of bac water might force you into multiple injections to hit your target dose. Unless you're microdosing, 2 mL per vial is a solid rule of thumb.

Insert the needle into the PNC-27 vial

With the bac water in your syringe, insert the needle into the PNC-27 vial at a slight angle to avoid pressure buildup.

Use a thin needle: Stick to 25G or higher to avoid damaging the rubber stopper. Higher gauge means a thinner needle.

Release the water gently

Let the water run gently down the side of the vial. Don't inject it forcefully.

Heads up: Sometimes the plunger pushes itself in as soon as the needle enters the vial. Hold the plunger back so you have full control over how fast the bac water enters.

Swirl to dissolve

Avoid shaking. Gently swirl, flip, and roll the vial to dissolve the powder.

Be patient: This usually takes 2 to 5 minutes of consistent swirling, mixing in a circular motion, and gently flipping the vial up and down. The water needs to run through the powder many times to fully dissolve it. Don't shake or get aggressive with it.

Check for full dissolution

The solution should be clear with no visible particles. If it's cloudy or clumpy, wait a minute and repeat the swirling step.

Cap, dispose, and store

Once you're done, cap the needle and dispose of it (ideally in a sharps container). Store the reconstituted PNC-27 vial in the fridge whenever it's not in use. It will stay good for approximately 30 days.

How to Store PNC-27

Freeze the dry powder; it can handle room temperature for a few weeks. Once mixed with liquid, refrigerate and use within two weeks, or freeze it long-term with a protein stabilizer added, avoiding repeated freezing and thawing.

Lyophilized Storage

-20°C, stable at room temperature for up to 3 weeks.

Reconstituted Storage

2–8°C for up to 14 days.

Long-Term Storage

-18°C or below with carrier protein (0.1% HSA/BSA); avoid freeze-thaw cycles.

A smartphone displaying a "Storage Guide" for peptides, indicating a safe storage temperature range of 2–8°C, with warnings to keep away from light, heat, and freezing. The background is light blue, and additional tips on protecting the peptides are visible below the temperature range.

What Are the Benefits of PNC-27?

What research says it may help with, and how it works in the body.

cancer research

: Has shown effectiveness at killing breast cancer cells in lab studies.
: Kills a type of leukemia cell (called K-562) by attaching to a protein (HDM-2) found on the cell's surface, causing the cell to break down.
: Selectively targets and attacks melanoma (skin cancer) cells.
: In research, PNC-27 has been shown to selectively kill pancreatic cancer cells while largely sparing normal cells.

mechanism studies

: Works best against cancer cells that have high amounts of a particular protein (HDM-2) on their outer surface.
: Used by researchers as an example compound to study how to design treatments that target cancer cells while sparing healthy ones.

What Are the Side Effects of PNC-27?

Who should avoid it, warning signs to watch for, and what to know before combining it with other compounds.

Who Should Avoid It

: Not approved for human use
: Experimental research peptide only
: Cancers without membrane HDM-2 may not respond

Stop Right Away If You Notice

: Not applicable - not approved for human use

Milder Signs to Watch For

DiscolorationCloudy solutionParticulates visible

Was it helpful?Yes

How Long Should a PNC-27 Cycle Last?

This breaks down how long a typical PNC-27 cycle runs and what research suggests happens at each stage. Research shows that staying on a peptide continuously, without a break, may make it less effective over time.

That's why most research protocols build in a break between cycles, often called a washout period, to let the body reset before starting again.

Week 0-0: Binding to membrane HDM-2 begins
Week 0-0: Pore formation and cancer cell necrosis
Week 0-0: Tumor reduction in animal models
Week 0-0: Human clinical trials not yet conducted

Cheat Sheets Featuring PNC-27

See how PNC-27 fits into a broader research stack with these free downloadable cheat sheets. Each one includes reference dose ranges, dosing frequency, and half-life for every peptide it covers. For research purposes only.

View all

Longevity Peptide Cheat Sheet

42 peptides

Master Peptide Cheat Sheet

78 peptides

PNC-27 Research References

It is a preclinical compound

4Research references

PNC-27

PNC-27 is a preclinical compound

Anticancer peptide PNC-27 adopts an HDM-2-binding conformation and kills cancer cells by binding to HDM-2 in their membranes

PNC-27 binds membrane-bound HDM-2, inducing pore formation and cancer cell necrosis while sparing normal cells.

n.d.

Anti-Cancer Peptide PNC-27 Kills Cancer Cells by Unique Interactions with Plasma Membrane-Bound hdm-2 and with Mitochondrial Membranes

PNC-27 also enters cancer cells and disrupts mitochondrial membranes.

n.d.

PNC-27 Induces Tumor Cell Necrosis of Leukemia Cells

PNC-27 induces necrosis of K-562 leukemia cells lacking p53 through p53-independent pathway.

n.d.

PNC-27, a Chimeric p53-Penetratin Peptide

PNC-27 binds HDM-2 in p53 peptide-like structure, induces selective membrane-pore formation leading to cancer cell lysis.

n.d.

Frequently Asked Questions About PNC-27

Straight answers on reconstitution, dosing, and safety, everything you need to research with confidence. For research reference only.

PNC-27 is a synthetic 32-amino-acid chimeric peptide combining a fragment of the p53 tumor suppressor protein (residues 12-26, the region that binds HDM-2/MDM2) with a penetratin sequence derived from the Drosophila antennapedia protein that helps the peptide cross cell membranes. It was designed as an experimental anticancer research compound and is studied for its ability to selectively target cells that overexpress HDM-2 on their surface, a feature commonly seen in cancer cells but not in normal cells.

PNC-27 is proposed to bind membrane-bound HDM-2 protein that is characteristically expressed on the surface of cancer cells (unlike normal cells, where HDM-2 is largely intracellular). Once bound, the peptide's penetratin portion inserts into the cell membrane and forms transmembrane pores, which in laboratory studies has been shown to trigger rapid necrotic cell death rather than the slower process of apoptosis. Separately, PNC-27 has also been reported in some studies to enter cells and disrupt mitochondrial membranes. Because HDM-2 is not typically found on the surface of healthy cells, researchers have proposed this as a basis for selective cytotoxicity, though this remains an experimental hypothesis rather than an established clinical mechanism.

PNC-27 has been studied in cell culture (in vitro) experiments against a range of cancer cell lines, including pancreatic, breast, ovarian, leukemia, and melanoma models, as well as in some rodent xenograft studies, with reported synergy alongside chemotherapy agents like paclitaxel in preclinical work. It has not completed human clinical trials and is not approved by the FDA or any regulatory body for diagnostic, therapeutic, or any other medical use in humans or animals. It is sold by research chemical suppliers strictly labeled 'for laboratory/research use only, not for human consumption,' and introducing it into humans or animals outside of a licensed research setting is against the terms these products are sold under.

Published preclinical and lab protocols vary widely by study design and route of administration. Some in vitro/animal-oriented references describe daily doses in the range of roughly 0.1 to 1 mg/kg, while various online research-supplier dosing guides describe illustrative regimens starting around 100 mcg and potentially titrating to 200 mcg. There is no standardized, clinically validated human dosing protocol for PNC-27, and any figures found online reflect research literature or vendor guidance rather than approved medical dosing. Because it is not approved for human use, no dosage can be responsibly recommended here.

Because PNC-27 has not been through human clinical trials, there is no well-established human side-effect profile. Sources discussing experimental/research use most commonly mention local injection-site reactions (redness, warmth, tenderness) that are typically most pronounced in the first several hours and resolve within a day or two, along with occasional reports of transient fatigue or mild flu-like symptoms. These reports come from research and anecdotal sources rather than controlled clinical safety studies, so the full range and frequency of potential side effects in humans is not well characterized.

PNC-27 is typically supplied as a lyophilized (freeze-dried) powder. General peptide-handling guidance from research suppliers suggests reconstituting with bacteriostatic or sterile water, avoiding vigorous shaking (gently swirl instead), and storing the reconstituted solution refrigerated at 2-8°C (35.6-46.4°F), using it within about 30 days and avoiding repeated freeze-thaw cycles. Unreconstituted lyophilized powder is generally described as more stable and is often recommended to be stored frozen or refrigerated, protected from light, until use. These are general research-handling conventions rather than a manufacturer-validated stability protocol, since no official pharmaceutical labeling exists for this compound.

PNC-27 belongs to a family of experimental p53-derived, penetratin-linked peptides developed by the same research group, which also includes related compounds such as PNC-28. These peptides share the general design concept of pairing a p53-HDM2-binding fragment with a cell-penetrating sequence, but they differ in exact amino acid composition and reported activity. PNC-27 should not be confused with unrelated MDM2 small-molecule inhibitors (such as nutlins) studied elsewhere in cancer research, which work through different chemical mechanisms.

PNC-27 is available from a number of research chemical and peptide suppliers, generally marketed at high purity (often 98-99%+) with third-party testing. These products are explicitly labeled for laboratory and research use only and are not intended for human or animal consumption. Buyers are legally responsible for using such research chemicals only in accordance with these terms; using PNC-27 as a self-administered health or medical product falls outside the stated legal use of these products and outside of any regulatory approval.

PNC-27 Dosage Guide, Benefits & Side Effects

PNC-27 Dosage Guide for Cancer Research / Anti-TumorPNC-27 Dosage Calculator

What is PNC-27?