PepStakk

1 — Peptide

⚠️

Not a prescription. All dosing guidance, stakk recommendations, and research summaries are for educational and directional purposes only. They are based on published research and clinical protocols, not personal medical advice. Always consult a licensed physician before starting any peptide protocol.

Quick select from library

2 — Vial & Dose

Vial size

Desired dose per injection

Syringe type

Most peptide users use U-100 insulin syringes. Check the label on your syringe box if unsure.

Injections per week

/ week

💉

Ready to calculate

Select a peptide and enter your dose
to get reconstitution instructions.

For educational purposes only. Always follow your prescribing clinician's instructions. Verify all calculations before administering.

Weekly Schedule

Tap ✏️ to edit · 🗑️ to remove

Supplies

Everything you need for your peptide protocol — injection supplies, body composition tools, at-home lab testing, and health tracking. Tap a category to browse.

Buying tip: 100-count packs for syringes and wipes are significantly cheaper per unit.

Note: Links open Amazon search results — no affiliate commissions. Verify products are appropriate for your protocol. Syringe laws vary by state.

Peptide Sources

Find a local clinic or compounding pharmacy, or browse our curated telehealth and research-grade vendors below.

📍 Find a Local Clinic or Pharmacy

📍 City, state, or ZIP code (required) 🔍 Clinic or pharmacy name (optional)

🏥 Clinical & Telehealth — Prescription Pathway

💊

Defy Medical

Telehealth hormone & peptide clinic · Nationwide US

Physician Supervised Nationwide Telehealth TRT + Peptides

One of the longest-established telehealth clinics specializing in hormone optimization and peptide therapy. Board-certified physicians evaluate labs and prescribe from licensed compounding pharmacies. Offers a wide range of peptide protocols including growth hormone peptides, BPC-157, and more.

Visit defymedical.com ↗

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Nava Health

Integrative telehealth · Peptide & hormone therapy

Physician Supervised Telehealth GLP-1 + Peptides

Integrative medicine clinic offering telehealth peptide protocols across the US. Physicians provide prescription-grade peptides through licensed US pharmacies. Covers weight loss, recovery, cognitive, and hormone peptides with structured follow-up care.

Visit navacenter.com ↗

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HydraMed

Online prescription peptide platform · Licensed providers

Physician Supervised Telehealth Licensed Pharmacies

Online peptide prescription platform with licensed healthcare providers in most US states. Consultations are conducted virtually and prescriptions are fulfilled through licensed compounding pharmacies. Ships directly to your door with detailed administration guidance.

Visit hydramed.com ↗

🔬

Amazing Meds

Telehealth wellness clinic · HRT & peptide therapy

Board-Certified Physicians 45 States + DC 503A Compounding

Colorado-based telehealth clinic serving 45 states plus DC. Board-certified physicians oversee all peptide protocols. Works with FDA-registered 503A compounding pharmacies. Offers peptide therapy alongside TRT and hormone optimization. Some insurance coverage available.

Visit amazing-meds.com ↗

🧪 Research-Grade Vendors — Laboratory Use Only

⭐

Limitless Biotech

Top-rated · HPLC + Mass Spec verified · US-based

HPLC + MS Tested US-Based 118+ Peptides COA Per Batch

Consistently ranked #1 among research peptide vendors. Every batch is verified by both HPLC (purity) and mass spectrometry (identity) from independent third-party labs — full chromatogram COAs are published per batch, not just a purity number. 118+ peptides including injectables, nasal sprays, and capsules. Premium pricing reflects best-in-class documentation.

Visit limitlesslifenootropics.com ↗

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SwissChems

Widest catalog · HPLC/MS tested · 99%+ purity guarantee

Third-Party Tested US-Based 60+ Peptides Refund Guarantee

One of the most established names in research peptides, operating for nearly a decade. COAs are displayed directly on every product page. If your order fails independent third-party testing, SwissChems will refund the order plus testing costs. Widest single-vendor catalog including hard-to-find compounds. Available in powder, capsule, nasal spray, and solution formats.

Visit swisschems.is ↗

🏅

Verified Peptides

Community trusted · Third-party COAs · Fast US shipping

Third-Party Tested US-Based 5,000+ Members Fast Shipping

Well-established US vendor with a strong community following. All products are third-party tested with COAs readily available. Particularly well-regarded for BPC-157 and TB-500. Competitive pricing with fast domestic shipping. Over 5,000 active research community members. Consistent positive reviews for quality and customer service.

Visit verifiedpeptides.com ↗

📋

Finnrick Analytics

Independent vendor rating database · 185+ suppliers ranked

Independent Ratings Lab-Verified Rankings Comparison Tool

Not a vendor — an independent analytics platform that rates 185+ peptide suppliers based on actual independent laboratory testing. Use this before buying from any vendor to check their quality rating, compare COA documentation standards, and identify red flags. One of the most objective resources available for vendor due diligence.

Visit finnrick.com/vendors ↗

✅ What to look for in any source

✓ Independent third-party COAs — not just internal testing. Look for HPLC chromatograms and mass spec identity confirmation, not just a purity percentage.

✓ Batch-specific documentation — the COA lot number should match your order. Generic COAs reused across batches are a red flag.

✓ US-based manufacturing — reduces risk of import contamination and provides some regulatory accountability.

✓ ≥97% purity — anything below 95% introduces unknown impurities that affect both safety and research validity.

✗ Avoid vendors with no COAs, therapeutic claims, combined syringes/diluent in kits (FDA enforcement target), or no verifiable online history.

This list is for informational purposes only and does not constitute an endorsement of any vendor. Regulatory status of peptides changes frequently — verify current legal status before purchasing. Always work with a licensed physician for any therapeutic use.

👥 Community-Recommended Vendors

⚠️

Community-submitted. Unverified. PepStakk has not tested, vetted, or endorsed any vendor listed here. We do not receive compensation from any listed source. Always verify COA/third-party testing before ordering. Purchase at your own risk.

🏪

No community vendors yet

Know a reputable source? Be the first to submit one.

⚠️

Ask Anything

Describe a condition, symptom, or question in plain English.

OR SELECT GOALS

Your Goals

Select all that apply. The AI will recommend a peptide stakk tailored to your goals.

⚖️Weight Loss

💪Muscle & Composition

🩹Recovery & Healing

⚡Energy & Vitality

😴Sleep Quality

🧠Cognitive & Focus

🔋Hormone Support

⏳Anti-Aging

🛡️Immune Support

🌿Gut & Inflammation

✨Skin & Collagen

🩸Metabolic Health

Additional context (optional)

Analyzing your goals and building your stakk...

Safety Guide

Real-time safety research, personalized Stakk warnings, and protocol guidance. Safety research updates daily from PubMed and FDA sources.

🔬 Latest Safety Research

Loading safety research...

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Needle & Injection Safety

Most common source of errors

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⛔ Critical Mistake

Reusing needles

A needle is sterile only once. After the first use the tip is microscopically barbed, bacteria can enter, and injection pain increases dramatically. Use a fresh needle every injection — they cost pennies.

⛔ Critical Mistake

Touching the needle tip

Touching the needle — even briefly — contaminates it. If you touch the tip, discard and use a new needle. No exceptions.

⚠️ Common Mistake

Injecting into the wrong tissue layer

Subcutaneous (SQ) injections go into the fat layer just under the skin — pinch the skin, insert at 45°, release the pinch. Intramuscular (IM) goes deeper into muscle at 90°. Most peptides are subcutaneous. Check your peptide's protocol before injecting.

⚠️ Common Mistake

Not rotating injection sites

Injecting in the same spot repeatedly causes lipohypertrophy — hardened fatty lumps that impair absorption. Rotate between abdomen, thigh, and glute. Keep a mental map or written log.

⚠️ Common Mistake

Injecting cold peptide solution

Cold solution from the fridge causes more pain and may affect tissue. Let your syringe sit at room temperature for 5–10 minutes before injecting.

ℹ️ Best Practice

Correct syringe for your draw amount

For doses under 10 units, use a U-100 0.3mL (30-unit) insulin syringe — the shorter barrel makes small volumes measurable. A 1mL syringe makes 2-unit draws nearly impossible to read accurately.

ℹ️ Best Practice

Air bubble removal

After drawing, tap the syringe and push the plunger gently to expel air bubbles before injection. A small air bubble in a subcutaneous injection isn't dangerous — but accuracy suffers.

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Reconstitution Safety

Mixing and storage errors

›

⛔ Critical Mistake

Using sterile water instead of BAC water

Sterile water has no preservative — once opened, bacteria grow within 24–48 hours. Bacteriostatic water (BAC water) contains 0.9% benzyl alcohol which inhibits bacterial growth and keeps reconstituted peptides stable for 21–30 days refrigerated. Always use BAC water.

⛔ Critical Mistake

Shaking the vial after reconstitution

Shaking denatures peptide bonds and degrades the compound. After adding BAC water, swirl gently or roll between your palms. The powder should dissolve on its own within a few minutes. Never shake.

⛔ Critical Mistake

Injecting BAC water directly into the powder

Don't shoot BAC water forcefully onto the peptide powder — the pressure can damage the compound. Instead, aim the syringe at the glass wall of the vial and let the liquid run down the side onto the powder slowly.

⚠️ Common Mistake

Adding too much BAC water

More BAC water = lower concentration = larger injection volume needed. A standard 2mL peptide vial cannot physically hold more than 2–2.5mL. Use the Calculator tab to find the right BAC volume for your dose. Aim for 5–20 units per injection on a U-100 syringe.

⚠️ Common Mistake

Leaving reconstituted peptide at room temperature

After reconstitution, peptides must be refrigerated at 2–8°C (35–46°F). Left at room temperature, most peptides degrade significantly within hours. Use the Calculator tab for exact shelf-life estimates by peptide.

⚠️ Common Mistake

Freezing reconstituted peptides

Freezing a reconstituted (already mixed) peptide can cause precipitation and degradation. Freeze only lyophilized (powder) peptides before reconstitution. Once mixed, keep refrigerated only.

ℹ️ Best Practice

Label every vial immediately

Write the peptide name, reconstitution date, and expiry date on the vial with a marker immediately after mixing. Never rely on memory. Discard any vial that appears cloudy, discolored, or has visible particles.

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Storage & Handling

Temperature, light, and shelf life

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⚖️

Dosing Safety

Common calculation and titration errors

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🏛️

Legal & Regulatory

FDA status, sourcing, and liability

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⚠️ Medical Disclaimer
PepStakk content is for educational purposes only. Nothing here constitutes medical advice, diagnosis, or treatment. Peptide use carries real risks. Always work with a licensed, knowledgeable clinician. If you experience an adverse reaction, seek medical attention immediately.

Practitioner Consult

🚧

Practitioner Network — Launching Soon

We're onboarding our first practitioners now. Use the Advisor tab to get a Stakk Recommendation, then tap Request Consult to join the waitlist.

Get your stakk reviewed by a licensed practitioner in the PepStakk network. Receive written feedback within 24 hours, or book a live video consult.

🩺

PepStakk Premium

Get your peptide stakk reviewed by a licensed practitioner. Written review within 24hrs + 1 video consult per month.

PRICING IN DEVELOPMENT

Coming out of beta

Subscription pricing is being finalized based on beta user feedback. Join the waitlist to be notified when it launches.

What you get

✓

Async Stakk Review

Submit your stakk, get written practitioner feedback within 24hrs

✓

1 Video Consult / Month

30-min live session with your assigned practitioner

✓

Dosing Validation

Personalized dose guidance based on your goals and history

✓

Interaction Flagging

Practitioner reviews your full stakk for conflicts or concerns

✓

Everything in Pro

AI Advisor + Local Search included

Free during beta · Notify me when subscriptions launch

Our Practitioners

👨‍⚕️

Dr. [Name]

MD · Integrative Medicine · 12 years experience

Specializes in peptide protocols · Avg response 8hrs

👩‍⚕️

Dr. [Name]

NMD · Naturopathic Medicine · 9 years experience

Specializes in longevity & recovery · Avg response 6hrs

Practitioners provide educational guidance only. Not a substitute for medical advice. PepStakk is not a licensed medical provider.

Peptide Intelligence

Daily updates from PubMed, FDA, ClinicalTrials.gov, and NIH — summarized by AI for relevance to peptide therapy.

🔍

Fetching latest peptide news...

Account

🚧

Account System — Launching Soon

User accounts, subscriptions, and payment are in development. This is a preview of the account experience.

CURRENT SESSION

Profile

👤

PepStakk User

ID: —

Email Not set

Password ••••••••

Member since —

Subscription

Free Plan

Ad-supported · Core tools only

ACTIVE

Subscriptions launch when the practitioner network goes live. Early access users will be grandfathered into a discounted rate.

Free

Ad-supported

forever

✓Peptide Library (full)

✓Reconstitution Calculator

✓Injection Schedule Builder

✓Safety Guide

✗AI Advisor & News Feed

✗Clinic Finder

📢 Includes contextual advertisements

Pro

No ads · AI-powered tools

TBD

Pricing in development

✓Everything in Free, no ads

✓AI Advisor (natural language + goal-based)

✓Daily News Feed + Live Research Search

✓Clinic & Pharmacy Finder

✓Stakk Interaction Checker

✓Dose History & Compliance Tracking

✗Practitioner Consult

🚧 LAUNCHING SOON — JOIN WAITLIST BELOW

BEST VALUE

Premium

Full access + Consults

TBD

Pricing in development

✓Everything in Pro

✓Practitioner Consult (written, 24hr turnaround)

✓1 Video Consult/month (30 min)

✓Priority practitioner matching

✓PDF Protocol Export

✓Early access to new features

🚧 LAUNCHING SOON — JOIN WAITLIST BELOW

Join the Subscription Waitlist

Be first to know when Pro and Premium launch. Early access users will receive special consideration.

Payment Method

💳

No payment method on file

Added when subscriptions launch

Accepted: Visa · Mastercard · Amex · Apple Pay · HSA/FSA

Data & Privacy

Export my data ↗

Clear local data ›

Data storage Calculating...

Version v32 · PepStakk Early Access Beta

Beta Feedback

Help us build the best peptide intelligence platform. Takes about 3 minutes.

Beta v1.0 · All responses are anonymous unless you add your name

01 — Overall Experience

How would you rate PepStakk overall?

How likely are you to recommend PepStakk to someone interested in peptides?

How did you find out about PepStakk?

02 — Features

Which feature do you use most?

Which feature needs the most improvement?

Is there a feature you expected but couldn't find?

03 — Content & Accuracy

How accurate does the dosing and protocol information feel?

How useful is the AI Advisor's recommendations?

Did you notice any incorrect or outdated information?

04 — Value & Pricing

Would you pay for a Pro subscription with the features described above?

How valuable is the Practitioner Consult feature to you?

Compared to other peptide tools or resources, PepStakk is:

05 — Anything Else

Anything else you want to share — bugs, ideas, impressions, complaints?

Your name or handle (optional — for follow-up)

Responses are submitted to our beta review database. We read every one. We may follow up if you left your name.

Help & FAQ

How PepStakk works

Enter your vial size, your desired dose per injection, and select your syringe type. The calculator works out how much BAC water to add to achieve a practical draw amount, then shows you exactly which unit mark to draw to on your syringe.

BAC water is recommended automatically based on your vial and dose — you can override it if your clinic uses a different protocol. All fields update live as you type.

Insulin syringes are marked in units, not millilitres. The calculator converts your dose into the unit mark on your specific syringe type.

For example: a U-100 syringe (100 units/mL) and a 0.2mL draw = the 20-unit mark. The calculator does this conversion automatically — no mental math at injection time.

When you add a peptide, PepStakk runs the reconstitution math in the background using research-default values so your schedule entry is pre-filled with draw units, syringe, and BAC water — no separate calculator step needed.

All fields are editable. If you already know your settings, tap Skip → in the top-right corner to add directly without going through the calculator.

When a peptide is added to your Stakk, it appears in your Schedule immediately as a pending entry — dashed amber border and "⚡ Needs scheduling." It's a placeholder and won't generate reminders until confirmed.

Tap Set Up on any pending entry to configure your dose, days, and timing. Or tap Apply Research Defaults on the banner to confirm all at once using published protocol values.

Most peptides run in cycles — active dosing followed by a rest period. The cycle fields let you model this exactly.

On weeks: how long you inject each cycle.
Off weeks: rest period before restarting. Set to 0 for continuous protocols.
Repeats: how many full on/off cycles to run.

A live preview shows exact calendar dates for each phase as you type. Your peptide view card shows current cycle status in real time.

The app counts your logged injections, subtracts from your total supply (shots per vial × vials on hand), calculates days of supply remaining, then subtracts your lead time to give a reorder-by date.

Tap ✏️ Edit on any reorder card to override the calculated date, adjust lead time, update vials on hand, or add vendor notes. Everything is editable.

When you set your cycle duration in the calculator gate, the app calculates total injections across your protocol and divides by shots per vial.

Example: 8 weeks on × 2 inj/week = 16 injections. At 40 shots/vial = 1 vial. The app rounds up so you never run short. The step-by-step math is shown so you can verify it yourself.

PepStakk checks your dose and cycle against published research protocols. If your values fall significantly outside the range — more than 2× the maximum or less than 40% of the minimum — a warning appears before confirming.

You can always proceed by tapping "I understand — proceed anyway." This is designed to catch accidental entries, not restrict clinician-supervised protocols.

Full account sync across devices is coming soon as part of the subscription system currently in development.

For now, use Export Data in the Account tab to download your schedule and settings as a file, then import it on another device using Import Data.

No. PepStakk is a research intelligence and protocol management tool. All dosing guidance, research summaries, and recommendations are based on published scientific literature for educational and reference purposes only.

They are not a prescription, treatment plan, or personal medical advice. Always consult a licensed clinician before starting, changing, or stopping any peptide protocol.

Still need help?

We read every feedback submission.

Evidence Tiers

Dose history