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Fat LossMuscle BuildingInjury HealingAnti-AgingCognitive EnhancementSleep OptimizationImmune SupportGut HealingSkin RejuvenationSexual Health
Peptides
Adipotide
Weight Management
AOD-9604
Weight Management
BPC-157
Healing & Recovery
Cagrilintide
Weight Management
CJC-1295
Growth Hormone
DSIP
Sleep & Recovery
Epithalon
Anti-Aging
GHK-Cu
Anti-Aging
GHRP-2
Growth Hormone
HCG
Hormone Support
Hexarelin
Growth Hormone
HGH
Growth Hormone
IGF-1 LR3
Growth Hormone
Kisspeptin
Hormone Support
Melanotan-2
Cosmetic
MOTS-C
Metabolic
NAD+
Anti-Aging
Oxytocin Acetate
Hormone Support
PEG-MGF
Recovery
PNC-27
Cancer Research
PT-141
Sexual Health
Retatrutide
Weight Management
Selank
Cognitive
Semaglutide
Weight Management
Semax
Cognitive
Sermorelin
Growth Hormone
Snap-8
Cosmetic
SS-31
Mitochondrial
TB-500
Healing & Recovery
Tesamorelin
Growth Hormone
Thymosin Alpha-1
Immune
Tirzepatide
Weight Management
Total Peptides: 32
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Immune Protocol

PNC-27Complete Dosing & Administration Guide

A cancer-fighting peptide that works like a smart missile—it hunts down and destroys cancer cells by poking holes in them, while leaving your healthy cells completely untouched.

Dose Range

1-2mg

Frequency

Once daily

Route

Subcutaneous injection

Cycle Length

4-6 weeks

Dosing

How much
do I take?

Starting Dose

1 mg

Frequency

Once daily

Duration

1-2 weeks

This is where most research protocols begin. It lets you see how your body responds before moving up. Think of it as dipping your toe in the water first.

Standard Dose

1.5 mg

Frequency

Once daily

Duration

2-4 weeks

The sweet spot for most research applications. This dose showed solid anticancer activity in lab studies without extra side effects.

Advanced Dose

2 mg

Frequency

Once daily

Duration

2-3 weeks

The higher end of research dosing. Animal studies at this level (40 mg/kg) showed powerful anti-leukemia effects. Only use under close supervision.

Timing

Best time to take

Morning injections work well for most people—it keeps your schedule consistent and lets you monitor how you feel throughout the day.

With food?

You can take PNC-27 with or without food. It doesn't seem to matter for absorption, so do whatever fits your routine.

If stacking

If you're using other peptides too, inject them at different sites and wait about 30-60 minutes between each one. This helps you track which peptide causes what effect.

Adjusting Your Dose

Increase if

  • +You've been on the starting dose for 1-2 weeks with zero problems
  • +Your research protocol calls for dose escalation
  • +You're not seeing the expected research markers change at lower doses

Decrease if

  • -Injection site reactions are more than just mild redness
  • -You develop a fever over 100°F that doesn't go away
  • -You experience any unexpected or uncomfortable side effects

Signs of right dose

  • Little to no injection site reaction after the first few days
  • Stable energy levels throughout treatment
  • Research markers moving in the expected direction
  • No signs of allergic reaction or systemic issues

Dosing Calculator

Calculate Your Exact Dose

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Step 1: Peptide Weight

Find the weight printed on your peptide vial label

Look here!

The weight is on the label

Peptide vial
5mg

Select Weight

mg

Look for a number followed by 'mg' on the vial label (e.g., 5mg, 10mg)

Administration

How do I
use it?

Reconstitution

What you need

  • Bacteriostatic water (BAC water)—the preservative helps it last longer
  • Insulin syringes (29-31 gauge)—small needles mean less discomfort
  • Alcohol swabs for cleaning vial tops and injection sites
  • Your PNC-27 powder vial

Example

If you have a 5mg vial and add 2.5mL of BAC water, you get a concentration of 2mg/mL. So every 0.1mL (10 units on an insulin syringe) equals 0.2mg of PNC-27.

For a 1mg dose at 2mg/mL concentration: draw 0.5mL (50 units on a standard insulin syringe). Always double-check your math before injecting!

Injection

Route

Subcutaneous injection (just under the skin)—it's the easiest method for self-administration

Best sites

  • Belly fat area (about 2 inches away from your belly button)
  • Front or outer thigh (middle section)
  • Back of the upper arm (have someone help if needed)
  • Love handle area (the soft spots on your sides)

Technique

  • 1.Wash your hands thoroughly with soap and water
  • 2.Clean the injection site with an alcohol swab and let it air dry completely
  • 3.Pinch about an inch of skin to create a fold
  • 4.Insert the needle at a 45-90 degree angle (45 if you're lean, 90 if you have more tissue)
  • 5.Push the plunger slowly and steadily—rushing can cause discomfort
  • 6.Wait 5 seconds before pulling the needle out
  • 7.Don't rub the site afterward—just apply light pressure if needed
Full Injection Guide

Storage

Before reconstitution

Keep your PNC-27 powder in the freezer (-4°F to -112°F / -20°C to -80°C). It should stay in its original sealed vial, away from light. A properly stored vial can last up to 3 years. Don't let it sit at room temperature.

After reconstitution

Once you've mixed it with BAC water, move it to the refrigerator (36-46°F / 2-8°C). Never freeze the mixed solution—that destroys the peptide. Keep it away from light and use it within 14 days.

Signs of degradation

  • Cloudy or murky appearance (it should be clear or very slightly yellow)
  • Particles floating around or settled at the bottom
  • Any unusual smell—good peptide solution has almost no odor
  • Color changes—if it turns dark or strange colors, toss it

Sample Daily Schedule

Morning (between 7-10 AM works well for most people)

Start with 1mg, increase to 1.5-2mg based on your protocol injection

Site: Rotate between belly, thigh, and arm to prevent irritation

Pick the same time every day to build a habit. Set a phone alarm if you're forgetful. Keep a simple log of injection sites and any effects you notice.

Safety

Is it
safe?

Safety Profile

Here's the really cool thing about PNC-27: in all the lab and animal studies so far, it ONLY attacks cancer cells. Normal, healthy cells are completely ignored because they don't have the protein (HDM-2) on their surface that PNC-27 targets. Animal studies using doses up to 40 mg/kg showed tumors shrinking or disappearing with zero damage to normal tissues. That said, it hasn't been tested in human clinical trials yet, so we're still learning.

The safety data comes from extensive cell studies and animal experiments—not human trials. The science behind why it's selective is solid (cancer cells uniquely express HDM-2 on their surface), but always work with a medical professional when using research compounds.

Common Side Effects

Experienced by some users

Injection site redness

Localized erythema at the injection site is a normal inflammatory response to PNC-27 and the mechanical trauma of injection. Typically appears within 1-2 hours and resolves within 24-48 hours, reflecting immune activation rather than tissue damage.

Management: Rotate injection sites between abdomen, thigh, and upper arm to allow adequate healing time between injections to the same area. Apply ice packs for 10-15 minutes if redness causes discomfort. If redness persists beyond 48 hours, spreads beyond the injection site, develops red streaking, or is accompanied by warmth/drainage, contact your healthcare provider immediately as this may indicate infection.

Mild fatigue

Transient fatigue may occur following PNC-27 injection, particularly during the first 1-2 weeks as the immune system mounts its initial response to the peptide. This typically resolves within 4-6 hours post-injection and reflects physiological adaptation rather than toxicity.

Management: Plan injections for times when you can rest if needed—morning dosing allows observation throughout the day. Maintain optimal hydration and sleep patterns. Avoid strenuous exercise for 2-4 hours post-injection. If fatigue persists beyond 24 hours or intensifies with subsequent doses, notify your healthcare provider as this may indicate dose adjustment is needed.

Localized warmth or tenderness

Local heat and tenderness at the injection site are expected inflammatory responses to PNC-27 administration and represent normal tissue reaction to the peptide. Typically most pronounced in the first 6-12 hours and resolves within 24-48 hours as inflammation subsides.

Management: Apply cool (not cold) compresses for 10-15 minutes several times in the first 24 hours to reduce local inflammation and discomfort. Avoid rubbing or massaging the injection site. Wear loose clothing over the area if pressure bothers you. If warmth persists beyond 48 hours, expands beyond a 2-inch radius from the injection point, or is accompanied by erythema, purulent drainage, or systemic fever, contact your healthcare provider immediately as this may indicate cellulitis or infection.

Less Common

  • Headache
  • Low-grade fever

These typically resolve with continued use or dose adjustment.

Stop and Seek Help If

  • ×Any signs of allergic reaction—hives, swelling, trouble breathing (stop immediately and get help)
  • ×Fever that stays above 101°F for more than a day
  • ×Injection site reactions that keep getting worse instead of better
  • ×Any side effect that feels serious or really concerns you
  • ×Your research protocol is complete
  • ×Your supervising doctor or researcher tells you to stop

PNC-27 is a research compound, not an approved medication. Never start, stop, or change your dosing without guidance from a qualified medical professional or research supervisor. This information is for educational purposes—it's not medical advice.

Interactions

With other peptides

  • Generally considered safe to use together. BPC-157 supports healing and gut health, which complements PNC-27's targeted approach. Inject at different sites.
  • May actually work well together since both support immune function in different ways. Thymosin boosts overall immunity while PNC-27 targets cancer cells specifically.
  • Safe to combine. GHK-Cu helps with tissue repair and has its own mild anticancer properties. Different mechanisms, so no conflict expected.
  • !Don't use these together. PNC-28 is basically a shorter version of PNC-27 that works the same way. Using both would be redundant and could cause unexpected effects.

With medications

  • !Immunosuppressants (like prednisone, cyclosporine) - Could interfere with how PNC-27 works since it relies partly on immune function. Talk to your doctor—you may need to adjust timing or dosing.
  • !Blood thinners (warfarin, aspirin, etc.) - May increase bleeding or bruising at injection sites. Not dangerous, but something to watch. Your doctor might want to monitor your clotting levels.
  • NSAIDs (ibuprofen, naproxen) - Generally fine for occasional use. They might slightly increase injection site bleeding but nothing serious for most people.
  • !Chemotherapy drugs - Unknown interactions—PNC-27 works differently than chemo, which could be good or bad. Only combine under oncologist supervision in a research setting.

With supplements

  • Vitamin D - Safe and potentially helpful. Vitamin D supports immune function, which could complement PNC-27's effects.
  • Zinc - Safe to take together. Zinc is important for immune health and wound healing from injections.
  • Omega-3 fish oil - Safe to combine. May have mild blood-thinning effects, so watch for extra bruising at injection sites, but nothing dangerous.
  • High-dose antioxidants (vitamin C megadoses, etc.) - Theoretical concern here: PNC-27 kills cancer cells partly through oxidative stress. Flooding your body with antioxidants might interfere. Stick to normal supplement doses.

Want the Full Picture?

View the complete PNC-27 research profile including mechanism of action, clinical studies, effectiveness timeline, and FAQ.

View Full PNC-27 Profile

Medical Disclaimer

PNC-27 is an investigational research compound not approved by the FDA for human therapeutic use. This information is for educational purposes only and should not be construed as medical advice. Always consult with a qualified healthcare provider before starting any new supplement or treatment protocol.

Last updated: 2/8/2026

PNC-27 Protocol — Complete Dosing & Administration Guide | Peptide Initiative