Peptide Harm Reduction and Safety Checklist
Most avoidable problems come from a short list of habits: one needle for one use and one person; clean hands, stopper and skin; rotated sites; knowing the three emergencies; and vials stored as their labelling says (most mixed vials at 2–8 °C (36–46 °F)), labelled and dated. The other five are below, in order.
Last edited · written by PepPrep · not medical advice
This site lists accessories, not peptides, and it does not give dosing advice. What it can do is put the safety basics in one place, because most avoidable problems come from the same short list of habits. If you read one page on this site, read this one.
1. One needle, one use, one person
A needle is dulled after a single pass through a stopper and a single pass through skin. Reusing it hurts more, bruises more and carries bacteria in. Never share a needle, a syringe or a vial between people, ever, including within a household. Fresh syringes cost pennies; a sharps container takes the used ones.
2. Clean hands, clean stopper, clean site
Wash your hands, wipe the vial stopper with an alcohol pad and let it dry, wipe the skin and let it dry. Wet alcohol stings and does nothing extra. The clean-technique guide covers the rest, including what to do when you break a rule, and alcohol pads, chlorhexidine or barrier wipes covers what to wipe with when alcohol is leaving your skin sore.
3. Rotate sites and leave lumps alone
Stay a finger-width from the last spot and move around the area. A small bruise is normal; a hot, red, swelling lump that grows over a day or two is not, and that is a same-day doctor visit, not a wait-and-see.
4. Know the three emergencies
- Allergic reaction: hives, swelling of lips or face, wheeze, trouble breathing, feeling faint. Call emergency services. Do not drive yourself.
- Low blood sugar signs (shaky, sweaty, confused, heart racing), especially in anyone on blood-sugar medicine: fast sugar first, then a doctor.
- Severe stomach pain that does not ease, especially with vomiting, or yellowing of the skin or eyes: same day.
5. Store it right, label it, date it
Most reconstituted vials live in the fridge at 2–8 °C, out of the light, with the date written on them. A fridge thermometer tells you the truth about your fridge. The storage guide and the 28-day rule cover the details.
6. Do not dose from a screenshot
Units on a syringe are volume, not amount; the same line means different things in different vials. Use the calculator, write it down, and check it once more before you draw. The units guide explains why this is such a common mistake.
7. Tell the people who need to know
Your doctor and your pharmacist. Several everyday medicines interact with weight-loss and other peptides, and a pharmacist will tell you which in a minute. It is also the only way blood tests get interpreted properly; see the blood-tests guide.
8. Buy from somewhere accountable
Counterfeit and mislabelled vials exist. The official-sources guide lists the regulators and the listings guide shows what a bad supply listing looks like. If a source will not tell you what is in the vial and who made it, that is your answer.
9. Keep a log
Date, what, how much, where, and how you felt. A logbook or a note on your phone. It is what turns "something felt off last week" into information a doctor can act on.
10. Sharps go in a container, not a bin
A loose needle in household rubbish can injure someone. The sharps disposal guide lists the free and cheap routes in every country.
Supplies mentioned: Sterile Prep · Storage · Measuring & Tracking
Sources: CDC (opens in a new tab) · FDA (opens in a new tab) · NHS (opens in a new tab)
Equipment only: nothing on this page is advice about what to inject, how much, or whether a product is fit to use. That comes from the product's labelling and whoever supplied it.