What a combo pen is
A combo pen holds two or more compounds pre-mixed in one pen, so a single click of the dial takes all of them at once, each at its own concentration. The three that appear most in the protocols we write are Wolverine (BPC-157 + TB-500), GLOW (BPC-157 + TB-500 + GHK-Cu) and KLOW (BPC-157 + TB-500 + KPV + GHK-Cu). The pen-clicks guide has the micrograms per click for each.
The convenience is obvious: one pen, one schedule, one number on the dial. The constraint is just as obvious once you see it: the ratio between the compounds is fixed by the pen. You cannot take more GHK-Cu without taking more BPC-157 and TB-500 with it, and you cannot move one compound to the morning and another to the night. Whoever mixed the pen made those decisions for you, and they made them for the average researcher, not for you specifically.
Option A: the budget option
Option A is always written first and always in full — schedule, clicks, labs, fridge page. It uses the fewest pens that can honestly move the goal, which for a repair, skin or gut plan is usually one combo pen on one daily schedule, and for a metabolic or sleep plan one stand-alone pen. "Honestly" is the operative word: if a goal cannot be moved with one pen, Option A is two pens, not a pretence.
- One schedule. Every compound in the combo is taken at the same time, the same number of days a week, for the same number of weeks.
- Fewest pens per cycle. Typically one combo pen for eight weeks, two for twelve, depending on the click count.
- Doses set by the ratio. The protocol picks the click count that puts the lead compound at its house dose and reports what the others land at as a result.
- Simplest to run. Fewer decisions a day, fewer places for the arithmetic to go wrong, easier for the week-2 check-in to read.
For most first cycles, Option A is not a compromise. The research signal for a Wolverine or GLOW pen comes from the pairing itself, and the house click counts put every compound inside its dose window. A first cycle is also a tolerance test and a logging exercise; the fewer variables, the clearer the answer.
Option B: separate pens
Option B replaces the combo with one pen per compound. Each compound now has its own dose and its own timing, written independently in the full clinical protocol. It costs more pens, more clicks to count and more discipline, and it buys three things the combo cannot:
- Independent dosing. BPC-157 at the top of its window for a stubborn tendon while TB-500 drops to a maintenance dose after the loading weeks — the house TB-500 schedule itself is front-loaded, which a combo cannot express.
- Independent timing. GHK-Cu five days a week, BPC-157 twice a day around a training session, KPV at night — each where it does the most, not where the combo puts all of them.
- The ability to remove one thing. If the mid-cycle labs raise a question about one compound — copper on GHK-Cu, say — Option B drops that pen and keeps the rest. Option A has to stop the combo, and with it everything that was working.
Who benefits from the upgrade
| Situation | Option A or B? | Why |
|---|---|---|
| First cycle, general repair or skin goal | A | One schedule, one tolerance test; the pairing is the point |
| A specific, stubborn injury alongside general recovery | B | The injury compound needs a higher dose and a local timing the combo cannot give |
| Mid-cycle labs flag one compound | B | Remove one pen, keep the others; the cycle continues |
| Gut-and-skin goal where KPV and GHK-Cu want different timing | B | KPV at night, GHK-Cu with the daytime schedule |
| Budget is the constraint and the goal is not time-critical | A | Fewest pens; upgrade only if the first weeks earn it |
| Second cycle after a documented response to A | Often B | You now know which compound did the work; dose that one deliberately |
A nightly GH-axis pairing is the exception that proves the rule: CJC-1295 + Ipamorelin is almost always run as two pens because the house doses are small and the pairing is taken together anyway, so there is no combo to step up from.
Why A is written first, and B offered later
It would be easy to lead with the fuller plan. We do not, for three reasons.
It is easier to step up than to step down. Moving from a combo to separate pens at the week-6 check-in is a clean change: the labs say what is working, the new version writes each compound at a deliberate dose, and nothing is wasted. Going the other way — starting on separate pens and discovering at week 6 that the simpler plan would have done — means pens half used, a schedule you have already adapted your day around, and no clear reading on which compound did what.
The first cycle is information. A combo on one schedule gives a clean week-2 and week-6 reading. Four independent variables do not. If the goal is to learn what your body does with a pairing, the simplest version of the pairing is the better experiment.
Honesty about money. The €399 is the only thing with a price on this site. Everything after it is your decision, made with your physician, and we would rather the plan we hand you is the one that costs you least to run than the one that looks most impressive. Longevity Bros does not sell, supply, source or ship any compound; we have no stake in which option you choose.
How the upgrade actually happens
- Option B is described in your original full clinical protocol: which pens it would use and what each compound's dose and timing would become.
- At the week-6 check-in the coach reads the mid-cycle labs and the log against the thresholds in the document. If the upgrade is earned, a new version is issued with Option B written in full — fridge page included — and walked through on WhatsApp.
- The move happens at a schedule boundary, never mid-week, and never while a hold week is in progress.
- If Option A is doing the job, the coach says so, and the plan does not change. Earning the upgrade is the point; adding complexity you do not need is not.
Read next: how to read your protocol for where Option B sits in the document, and what a 12-week cycle looks like for the week-6 decision in context.
Frequently asked questions
Is the budget option a worse protocol?
No. It is the fewest pens that can honestly move the goal, with every compound inside its house dose window. For most first cycles the pairing in the combo is the point, and one schedule gives the cleanest reading at the check-ins.
What does separate pens let me do that a combo cannot?
Dose each compound independently, time each one where it does the most, and remove one compound without stopping the rest. The price is more pens, more counting and more discipline.
When is the upgrade offered?
At the mid-cycle check-in, once the week-6 labs and your log show it is earned. A new version is issued with Option B written in full and your coach walks you through it. If Option A is working, the plan does not change.
Can I start on Option B straight away?
You can ask, and for some situations — a specific injury alongside general recovery, or a second cycle after a documented response — the protocol will lead with it. For a first cycle we will usually recommend A and say why.
Why is stepping down harder than stepping up?
Stepping up at week 6 is a clean change informed by labs. Stepping down means separate pens half used, a daily routine already built around the fuller schedule, and no clear reading on which compound did the work.
Want it written for you?
Your protocol arrives with the budget option written in full and the upgrade described, so the choice is yours with the numbers in front of you. Human-reviewed, a free coach call on WhatsApp. €399, follow-up included.
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