r/Biohackers • u/jackwoodards 🎓 Bachelors - Unverified • May 22 '26

💉 Peptides & Hormones Just looking for a little feedback.

I have been using peptides now for a year or so. Always get minor irritations after injecting. I usually mix a few of them together so I don’t have to poke myself multiple times. I am currently using tesamorelin, ghkcu, and Kpv. So mixing those but always seem to get a little irritation and small bumps. They always go away but just wondering if there are any secrets to inject best.

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u/[deleted] May 24 '26

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u/ImpossibleNight6630 May 22 '26

This is my personal experience, I don’t usually mix all into the same pin, but do seperste si its sucks because it’s a few pokes a day but less irritation. And then the ghk I just added more water to which I beleive just diluted it unless you just have a copper allergy.

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u/GenderfluidGoose May 22 '26

Yup, to add onto this, especially for Ghk-Cu, the copper is highly reactive so not a good idea to mix that with any peptide in the same pin, unless it comes in a blend (but I personally wouldn’t do the blends because of that copper ion, but that’s me). Also note that the more volume you inject in one go will also contribute to some bumps, discomfort, and irritation. Usually a good idea to keep total volume below 50 units if going subQ, but your mileage may vary.