IGF Growth Protocol — 6-Week Multi-Phase System (DES, LR3, PEG-MGF)
Fri Jan 09 2026 00:00:00 GMT+0000 (Coordinated Universal Time)
Educational use only. Not medical advice. Not instructions.
This document explains research-discussed timing logic, food separation principles, and signal sequencing models used in IGF-focused training systems. Human data varies by compound and delivery model.
Why This Exists
Most IGF protocols fail for one reason:
Everything gets stacked at once.
IGF signaling is not “more is better.”
It is location-dependent, time-dependent, and nutrient-dependent.
This protocol separates:
- local contraction signals
- systemic growth signals
- delayed repair amplification
So each signal gets a clear window instead of competing at the receptor level.
The Three Lanes (What Each Compound Is Actually For)
Lane 1 — Local Contraction Signaling (minutes)
IGF-1 DES
DES is the short-acting, locally dominant IGF fragment.
It binds quickly, clears quickly, and is best aligned with acute mechanical tension.
What it’s for:
- amplifying the training signal itself
- favoring the muscle that was just loaded
- avoiding systemic spillover
Key concept: DES works best when insulin and circulating nutrients are low, so the contraction signal stays dominant.
This is why it is conceptually paired with:
- fasted or protein-only states
- immediate pre-training windows
Lane 2 — Systemic Growth Signaling (hours)
IGF-1 LR3
LR3 is the longer-acting systemic growth signal.
It stays active long enough to influence:
- satellite cell activity
- amino acid uptake
- whole-body recovery signaling
What it’s for:
- turning the training signal into a growth environment
- supporting tissue remodeling beyond a single muscle
Key distinction:
LR3 is not about targeting a muscle.
It’s about supporting the body’s global growth response after training.
Because of that, nutrient timing matters more here than with DES.
Lane 3 — Delayed Repair Amplification (days)
PEG-MGF (the big molecule)
PEG-MGF is not a workout-window compound.
It is slow, delayed, and biased toward:
- tissue repair
- satellite cell migration
- structural remodeling
What it’s for:
- reinforcing recovery signals after the training wave
- supporting connective tissue and muscle repair
- avoiding repeated acute IGF spikes
This is why PEG-MGF lives hours later or on non-training days, not stacked around the lift.
The 6-Week Structure (Big Picture)
This is not three peptides run “together.”
It’s one system, three time domains:
- DES → minutes
- LR3 → hours
- PEG-MGF → delayed repair (24–72h)
Over six weeks, the goal is to:
- keep DES sharp and local
- prevent LR3 from flattening receptors
- let PEG-MGF do slow structural work without interference
Timing Windows (Conceptual, Not Instructions)
Pre-Training Window (Local Signal Priority)
DES lane
- training proximity matters
- low insulin environment favored
- carbs before this window blunt locality
Why food matters here: High insulin turns DES into a systemic signal — which defeats its purpose.
Think:
- contraction first
- nutrients later
Post-Training Window (Systemic Growth Priority)
LR3 lane
This is where food becomes an ally, not an enemy.
- carbohydrates support insulin-mediated uptake
- amino acids reinforce growth signaling
- timing aligns with the recovery cascade
Key rule: LR3 works with food, not against it.
Trying to keep this window fasted often leads to:
- weaker recovery
- unnecessary fatigue
- people blaming the compound instead of the sequencing
Delayed Window (Repair Priority)
PEG-MGF lane
This window is intentionally separate.
- not pre-workout
- not immediate post-workout
- not stacked with DES or LR3
PEG-MGF is about:
- reinforcing repair signals
- not competing with acute IGF activity
- letting inflammation resolve before amplification
Food Separation Rules (Why They Matter)
The most common IGF mistake:
“I ate the same way around everything.”
That collapses all three lanes into one noisy signal.
Clean separation looks like:
- DES → low insulin environment
- LR3 → fed recovery window
- PEG-MGF → neutral, low-interference timing
This preserves signal clarity and reduces the urge to escalate exposure.
Weekly Rhythm (Why 6 Weeks Works)
IGF signaling adapts.
Running this system longer without breaks often leads to:
- diminishing response
- water-weight confusion
- “it stopped working” narratives
Six weeks is long enough to:
- reinforce tissue changes
- but short enough to avoid flattening responsiveness
What This Protocol Is Not
- Not a daily stacking plan
- Not a “more peptides = more gains” system
- Not a shortcut around training quality or recovery debt
IGF amplifies what you already earned.
Protocol V Takeaway
This system works when:
- DES stays local and sharp
- LR3 supports recovery with food
- PEG-MGF amplifies repair after the dust settles
Most people fail because they stack timing.
This protocol succeeds because it respects it.