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Six real Coach exchanges, anonymized. Every claim is rated by evidence tier — Clinical (peer-reviewed), Expert (practitioner protocol), or Experimental (community report). No filler, no hype, no fabricated citations.

Evidence tiers:Clinicalpeer-reviewedExpertpractitioner protocolExperimentalcommunity / N=1

BPC-157HealingDose

What's the optimal BPC-157 dose for tendon repair?

DoseCraft Coach

Research suggests 250–500 mcg subcutaneous, administered 2× daily (morning + evening) for 8–12 weeks during active rehab. Inject as proximal to the injury site as practical — site proximity correlates with response time in animal models.

Dose range: Expert; 250 – 500 mcg
Route: Clinical; Subcutaneous
Frequency: Expert; 2× daily (morning + evening)
Duration: Expert; 8 – 12 weeks

Why oral BPC-157 is a waste: gastric enzymes (pepsin, trypsin, chymotrypsin) destroy the 15-amino-acid chain before systemic absorption. SubQ is the only route with therapeutic plasma concentration data.

Log your first dose to start tracking response.

DISCLAIMER: This is for educational and informational purposes only. DoseCraft does not provide medical advice, diagnosis, or treatment recommendations. Always consult a licensed healthcare professional before starting, modifying, or stopping any protocol.

StackBPC-157TB-500

Can I stack BPC-157 with TB-500 for shoulder rehab?

DoseCraft Coach

Yes — these compounds work on different repair pathways and are genuinely additive, not redundant.

BPC-157 half-life (SubQ): Expert; ~4 hours
TB-500 half-life (SubQ): Expert; ~2–3 hours; effect persists 4+ days
Mechanism overlap: Clinical; BPC-157 modulates angiogenesis + GH-axis signaling; TB-500 (Thymosin Beta-4) drives actin polymerization for tissue migration. Different axes, complementary.
Cycling bottleneck: Expert; TB-500 cycles 4-on / 4-off; BPC-157 can run continuously. The stack's pace is set by TB-500.

No documented adverse interactions in current literature. Conservative starting protocol: BPC-157 250 mcg 2×/day + TB-500 5 mg every 5 days for 4 weeks, then reassess.

Build this in the Stack Optimizer to see dose-window timing visualized.

GLP-1SemaglutideTirzepatide

Semaglutide vs Tirzepatide for weight loss — what's actually different?

DoseCraft Coach

Both are weekly subcutaneous incretin agonists, but they hit different receptors. The difference shows up in efficacy, side-effect profile, and price.

Semaglutide receptor: Clinical; GLP-1 only (single agonist)
Tirzepatide receptor: Clinical; GLP-1 + GIP (dual agonist)
Mean weight loss (72 wk): Clinical; Semaglutide 13.7% / Tirzepatide 20.2% — head-to-head SURMOUNT-5 trial 2025
GI side-effect burden: Clinical; Comparable; tirzepatide slightly milder per published trial data

If cost is a factor, semaglutide is generally cheaper. If maximum efficacy with comparable tolerability is the goal, tirzepatide is the better-evidenced choice. Both require slow titration over 16+ weeks to minimize GI effects.

Track your titration schedule in the app — the half-life chart shows when steady-state plasma concentration locks in.

GH SecretagogueCJC-1295Education

What is CJC-1295 No-DAC?

DoseCraft Coach

CJC-1295 No-DAC is a modified Growth Hormone-Releasing Hormone (GHRH) analog. "No-DAC" means it lacks the Drug Affinity Complex modification that extends half-life. Half-life is ~30 minutes, so it produces a sharp GH pulse rather than sustained elevation.

Mechanism: Clinical; Binds GHRH receptors on the pituitary, triggering pulsatile GH release
Half-life: Expert; ~30 minutes (No-DAC variant)
Typical pairing: Expert; Stacked with Ipamorelin (GHRP) — GHRH + GHRP creates synergistic GH pulse
Standard timing: Expert; 1× daily before bed; pulse mimics natural GH circadian peak

Educational reference only — not medical advice.

CyclingStrategy

Do I need to cycle peptides? Which ones?

DoseCraft Coach

Yes for most. Peptides that stimulate receptor pathways desensitize those receptors with continuous use — the response weakens unless you give the system time to reset.

GH secretagogues (CJC-1295, Ipamorelin, Sermorelin, MK-677): Expert; Cycle 8 weeks on / 4 weeks off
Tesamorelin / Retatrutide: Expert; Continuous use OK for 16+ weeks; reassess at intervals
BPC-157: Expert; Exception — can run continuously, no documented receptor desensitization
TB-500: Expert; Cycle 4 weeks on / 4 weeks off — high tissue accumulation
MOTS-c: Experimental; Cycle 6 weeks on / 4 weeks off

The general rule: if the compound stimulates a receptor that has a known feedback loop (most do), cycle it. If it acts on a structural / repair pathway that doesn't downregulate (BPC-157, some healing peptides), continuous use is defensible.

Set cycle reminders in the app so you don't miss the off-week.

InjectionRoute

Subcutaneous vs intramuscular injection — does it matter?

DoseCraft Coach

For most peptides, yes. SubQ delivers slower, more sustained absorption; IM delivers a faster spike. The choice depends on the compound's half-life and the target effect.

Default for most peptides: Expert; Subcutaneous (SubQ) — abdomen, thigh, deltoid
Where IM is preferred: Clinical; TRT (testosterone esters), specific oils that need depot release
Insulin syringes (29–31g): Expert; Standard SubQ — minimal pain, consistent absorption
Site rotation: Clinical; Mandatory. Same site repeatedly = lipodystrophy + variable absorption

Educational reference only — not medical advice.

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