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Guide

How much does a peptide stack cost per month?

A simple, repeatable way to work out your real monthly and yearly peptide spend, including the costs that don't show up on the vial price.

Updated October 29, 2026

The short answer

Your monthly cost is the sum of each compound's cost per shot × shots per month, plus supplies and waste. For most stacks the peptide itself is the biggest line, but the small things (syringes, water, vials that expire half-used) commonly add 10–20% on top. The exact number depends entirely on your vendor's prices, your doses and your schedule, so the only reliable figure is your own.

Step 1: cost per shot for each compound

shots per vial = vial amount ÷ dose
cost per shot = vial price ÷ shots per vial

Do this per compound. Keep units consistent: 1 mg = 1,000 mcg. The cost calculator does it for you.

Step 2: shots per month

ScheduleShots per weekShots per month (avg)
Twice a day1460.8
Once a day730.4
5 on, 2 off521.7
Every other day3.515.2
3 times a week313.0
Twice a week28.7
Once a week14.3

Monthly figures use 4.345 weeks per month.

Step 3: the costs people forget

Worked example

Illustrative prices only. Use your own vendor's prices.

CompoundVialPriceDoseSchedulePer shotPer month
Compound A10 mg$60250 mcgDaily$1.50$45.62
Compound B5 mg$45500 mcg5 on, 2 off$4.50$97.76
Compound C10 mg$1202.5 mgWeekly$30.00$130.35
Supplies~56 shots$0.35$19.77
Waste (≈8%)$21.90
Total$315.40

About $315 a month, or roughly $3,785 a year, for this example stack. The year figure is usually the one that changes how people plan.

Step 4: track it, don't estimate it

A spreadsheet gives you a starting estimate. Real spend drifts: doses step up, a vial expires, you change vendors. PepKeep tracks it from what you actually log. Every dose comes out of its vial, so you see:

Questions

How much does a peptide stack cost per month?

It depends on your compounds, doses, schedule and vendor prices. Work out each compound's cost per shot (vial price ÷ shots per vial), multiply by shots per month, then add 10–20% for supplies and waste. Example stacks commonly land anywhere from under $100 to several hundred dollars a month.

What is the cheapest way to lower my peptide costs?

Reduce waste first: match vial size to your dose so vials are finished before their use-by date, and track real usage so you reorder on time instead of rushing shipping. Then compare price per mg, not price per vial.

How do I compare peptide prices between vendors?

Compare price per mg (vial price ÷ mg in the vial). A cheaper vial with less in it can cost more per dose.

Does PepKeep tell me what to take?

No. PepKeep tracks and calculates. It doesn't recommend compounds or doses.

Let PepKeep do this math for you, every day.

Reminders with the exact units to draw, vials that count down, and your real cost per shot, month and year. iPhone, Android and desktop.

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