Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • World
  • Users
  • Groups
Skins
  • Light
  • Brite
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (Zephyr)
  • No Skin
Collapse
Peptide Critic Community

Peptide Critic Community

  1. Randy the Rats Research Forum
  2. Supplies & Gear
  3. Injection Pens & Devices
  4. Pros and Cons of using injector pens
March 2026 Contest
Time remaining:
6611 total entries 1000 participants
View Contest

Pros and Cons of using injector pens

Scheduled Pinned Locked Moved Injection Pens & Devices
14 Posts 7 Posters 322 Views 2 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • RandyR Offline
    RandyR Offline
    Randy
    wrote on last edited by
    #2

    I use them because its easier. You just select the units, attach a needle and research. Its a quality of life improvement

    Filling the cartridges can be annoying the first few times and you lose a little bit of peptide in the process.

    If you are on a tight budget stick to the old school way.

    "If it doesnt come in a needle. It doesn't work"

    1 Reply Last reply
    1
    • R Offline
      R Offline
      ResearchCat
      wrote on last edited by ResearchCat
      #3

      I find using a pen is easier and hurts less. After several months of research, I am quite certain that when you load the syringe(puncture the vial) you are dulling it somewhat, resulting in a slightly more painful injection. When I use a pen, my researcher barely feels it, while with a syringe, it’s usually ok, but there is more resistance and pain, and a higher likelihood of bruising.

      My wife’s rat doesn’t like the idea of the pen and researches GLOW, otherwise, I would probably have everything loaded into pens at this point. (Between CJC/Ipa, Epitalon, GLOWx2, Tirzx2, that is a lot of syringes.) I also live in a restricted state, so I am constantly hunting for more.

      To Randy’s point, after the first few times, loading carts is easy. (See my post about loading 5 vials into 1 cart.)

      1 Reply Last reply
      1
      • J Offline
        J Offline
        jt2oux
        wrote on last edited by
        #4

        I have since researched injection pens a bit (thanks Randy) and seems like a quality of life upgrade for sure. Looks like the store is out of stock for many of the pens except the v2. So I think I'll grab a couple of those to start.

        1 Reply Last reply
        1
        • B Offline
          B Offline
          Bobbish
          wrote on last edited by
          #5

          Pens are easy; you can use 33-gauge needles and have one color for each peptide. Just twist the top and push. Getting them set up takes a few minutes, but once that's done, it's quick and easy.

          R 1 Reply Last reply
          1
          • B Bobbish

            Pens are easy; you can use 33-gauge needles and have one color for each peptide. Just twist the top and push. Getting them set up takes a few minutes, but once that's done, it's quick and easy.

            R Offline
            R Offline
            ResearchCat
            wrote on last edited by
            #6

            @Bobbish Yup, 5-15 minutes once a month vs 5 minutes every day. Plus filling the disposal bin takes a lot longer.

            1 Reply Last reply
            1
            • J Offline
              J Offline
              jt2oux
              wrote on last edited by
              #7

              Ordered a couple v2 and a v3 pens and loving them so far. Honestly can't tell the difference between the two models. Same look, same size, same features. I dig em.

              My gansulin and xulin should arrive tomorrow.

              1 Reply Last reply
              0
              • R Offline
                R Offline
                ResearchCat
                wrote on last edited by
                #8

                love the Gansulin! I’d have 5 if they weren’t so $$. Maybe over time…

                1 Reply Last reply
                0
                • F Offline
                  F Offline
                  fuzzybunny5150
                  wrote last edited by
                  #9

                  The only negative I see and what others have reported is: sometimes there you lose a small amount of research peptide.
                  For example: when pushing all the way in your rat, you must keep pen at the completion point for over 10 seconds as it still releases.

                  RandyR R 2 Replies Last reply
                  0
                  • F fuzzybunny5150

                    The only negative I see and what others have reported is: sometimes there you lose a small amount of research peptide.
                    For example: when pushing all the way in your rat, you must keep pen at the completion point for over 10 seconds as it still releases.

                    RandyR Offline
                    RandyR Offline
                    Randy
                    wrote last edited by
                    #10

                    @fuzzybunny5150 Yeah and there is no way around it. Theyre cost prohibitive for and we totally get it. But ive never had anyone use a pen and say "nah. not for me"

                    "If it doesnt come in a needle. It doesn't work"

                    1 Reply Last reply
                    1
                    • F fuzzybunny5150

                      The only negative I see and what others have reported is: sometimes there you lose a small amount of research peptide.
                      For example: when pushing all the way in your rat, you must keep pen at the completion point for over 10 seconds as it still releases.

                      R Offline
                      R Offline
                      ResearchCat
                      wrote last edited by
                      #11

                      @fuzzybunny5150 I haven’t had a problem or lost more than a small drop, and the same happens with manual pens. I hold for maybe 5-6 seconds after the clicking stops and I see the plunger stops moving. Only issue so far is it is a bit fast for GLOW or other peps that cause irritation.

                      1 Reply Last reply
                      0
                      • I Offline
                        I Offline
                        iMemphis
                        wrote last edited by
                        #12

                        Been debating between the Gansulin and the V3.5 (or 4) --- I like the idea of the hidden needle from the V1-4 line, I assume the Gansulin doesn't hide the needle at all right?

                        1 Reply Last reply
                        0
                        • D Offline
                          D Offline
                          diegoc
                          wrote last edited by
                          #13

                          Your comparing a Ferrari to a Toyota, the Gansulin pen is more for experienced ppl, just start with a couple V3 and then when you more comfortable, take a Ferrari for a spin

                          RandyR 1 Reply Last reply
                          1
                          • D diegoc

                            Your comparing a Ferrari to a Toyota, the Gansulin pen is more for experienced ppl, just start with a couple V3 and then when you more comfortable, take a Ferrari for a spin

                            RandyR Offline
                            RandyR Offline
                            Randy
                            wrote last edited by
                            #14

                            @diegoc What Diego said. Buy some v2s and and try it.

                            "If it doesnt come in a needle. It doesn't work"

                            1 Reply Last reply
                            0
                            Reply
                            • Reply as topic
                            Log in to reply
                            • Oldest to Newest
                            • Newest to Oldest
                            • Most Votes


                            • Login

                            • Login or register to search.
                            • First post
                              Last post
                            0
                            • Categories
                            • Recent
                            • Tags
                            • Popular
                            • World
                            • Users
                            • Groups