Peptides & longevity · FAQ
What side effects can peptides & longevity treatments cause?
Short answer
Peptides & longevity treatments can cause side effects that depend on the ingredient and how it is used. Injections can cause pain, redness, bruising, or infection. Nasal sprays and skin serums can cause local irritation. Severe allergic reactions are possible. Ask your physician about risks for your exact formulation.
Side effects depend on the product, dose, ingredients, and route of use. Injections may cause pain, redness, swelling, or bruising where the needle enters the skin. They also carry an infection risk. NAD+ nasal spray may irritate the nose, while GHK-Cu serum may cause skin irritation or an allergic reaction.
Sermorelin may cause injection-site reactions, headache, or flushing. Other effects can occur with NAD+, Glutathione, or Lipo-B12, and the added ingredients matter. Ask the prescribing physician or pharmacist for a complete review of your exact formula. Tell them about allergies and any prior reactions to medications, preservatives, or skin products.
Call 911 for trouble breathing, swelling of the face or throat, fainting, or other signs of a severe reaction. Get prompt medical advice for fever or spreading redness, warmth, or pain at an injection site. Do not take another dose after a suspected serious reaction until a clinician has advised you. Never share injection supplies or medication.
Sources
Written by the Verra clinical team · Medical review pending
General information, not medical advice. If you're in crisis, call or text 988.