Split the Shot

Same testosterone, same weekly dose — just twice a week instead of once. You lose nothing. You trade one extra needle a week for a flatter curve.

Split the Shot — Biohacking

One shot a week is the lazy default, and it's a roller-coaster. The needle goes in Monday, testosterone climbs hard early in the week, then bleeds down to a trough by the weekend. Strong early, flat late. Every single week.

So I split it. Same 100 mg a week — but now 50 mg Monday and 50 mg Thursday instead of the whole dose in one Monday hit. Same total. Same subcutaneous shot. Half the swing.

This is not a dose increase. It's a delivery change, and that's the whole point: you keep every milligram and every bit of the effect, and you only give up the swing — the supraphysiological peak and the weekend trough. That swing is the part you actually feel. Total exposure across the week is identical; the curve is just flat instead of jagged.

Same weekly dose, two delivery curves Serum testosterone over two weeks — 100 mg/week, once vs. twice steady band serum testosterone Mon Thu Mon Thu Mon days supra-physiological peak the weekly crash flat, no crash Once / week — 100 mg Mon Twice / week — 50 mg Mon + Thu
Same 100 mg per week. Once-weekly (red) spikes supraphysiological, then troughs by the weekend; split into two 50 mg shots (cyan) holds a steady band — same dose, flatter curve.

It matters more for me than for most. My SHBG runs low, and low SHBG is exactly the profile that swings hardest on a once-weekly shot — the free hormone climbs and falls fast, so the Monday peak and the weekend crash both hit harder. Splitting is the fix the blood actually asks for.

That's the entire adjustment — and it's not even a new injection day. Monday and Thursday were already needle days.

Then I hold

100 mg a week, split, until the July blood draw. That draw is the decision point. I read the trough — total testosterone, free testosterone, hematocrit — and only then decide whether to push the weekly total up to 120 or 140 mg, also split twice. Maybe I'm already dialed in and I leave it alone. Maybe I'm under and I step it up 20 to 40 milligrams. The numbers decide. Not the mood.

That's the rule the whole protocol runs on: you don't turn the dose dial on a hunch. Split now. Read in July. Adjust on data — or not at all.

Related Reading

Blast & Cruise — the testosterone framework this split fine-tunesBetter Than Ever: Seven Protocol Changes — the running protocol log this entry continuesFrom Panel to Protocol — reading the bloodwork first, then adjusting on data