Anabolic / Muscle

IGF-1 LR3

Most potent anabolic peptide available. Drives nutrient partitioning to muscle preferentially. Short cycles only — receptor desensitization risk at 6+ weeks.

4-6 weeks MAX
20-100 mcg/day
First effects: Days 1-7
SubQ or IM post-workout

Maximum 4-6 week cycle. Running longer risks IGF-1 receptor downregulation. This is not a preference — it's a biological limit.

Interactive Timeline

Muscle Cell Activation
Nutrient Partitioning
Lean Mass
Fat Loss
Strength
Days 1-7
Weeks 1-2
Weeks 2-3
Weeks 4-6
Post-cycle

Tap dots for details. Scroll horizontally to see full timeline.

Days 1-7

Immediate Effect

  • Muscles feel full
  • Cellular activation
  • Nutrient partitioning begins

Day 4 my muscles felt full in a way I'd never experienced.

Weeks 1-2

Insane Pumps

  • Recovery dramatically faster
  • Training that should destroy you
  • Back the next morning

Should have destroyed me for 3 days. Back next morning.

Weeks 2-3

Visible Changes

  • Fat down, muscle up
  • Scale same, mirror different
  • Recomposition visible

Down 2% fat, up 4 lbs. Scale same. Mirror different.

Weeks 4-6

Peak Window - STOP AT 6 WEEKS

  • Maximum anabolic effect
  • Hard gains not water
  • Do not extend beyond 6 weeks

6 weeks, 5 lbs lean mass. Hard gains, not water.

After stopping

Post-Cycle Maintenance

  • Gains maintain
  • Still up months later
  • Receptor sensitivity returns

3 months later still up 4 lbs lean.

Dosing Protocol

20-100 mcg SubQ or IM post-workout. MAXIMUM 6 WEEK CYCLE.

All timelines reflect community-reported observations. Not medical advice. Individual results vary. Consult a qualified healthcare provider before starting any peptide protocol.

DYK Peptides

Community-reported peptide data