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Anyone have suggestions with what I guess is buildup of scar tissue over years of injecting? Lately the needle bends rather than penetrate the corpus cavernosum… quadmix max strength 25 units

I would try a thicker gauge needle.

What gauge needle are you using?

To prevent damage to the penis, Defy Medical requires patients to use only a 29-gauge ½ inch needle when using Trimix. Using a smaller needle increases the risk of bending the needle during injection, which will damage the tissue over time. A shorter needle will not deposit the medication deeply enough, which is why a ½ inch length is recommended.

https://www.defymedical.com/blog/instru ... njections/

Also once you take the orange cap off to fill the syringe. Do not put the cap back on. Putting the cap back on can dull the needle.

Thanks for the advice regarding leaving the orange cap off once I filled the syringe... I was able to penetrate the proper area of injection with minimal problems and my girlfriend was overjoyed with the results... 67 years old on quad mix maximum strength from Rev for men which is a gay mens website but I have found to be way more honest than some of the websites that keep trying to sign you up for yearly contracts at escalating prices as you dose up over the years