PEG MGF-2X
XENE BIOLABS RESEARCH SERIES
FOR RESEARCH USE ONLY
Category: Muscle Growth Factor | Half-life: 48-72h due to PEGylation
Mechanism
Splice variant of IGF-1 expressed after mechanical stress. Activates satellite cells for muscle repair and growth. PEGylation extends half-life vs MGF.
Dosing Protocol
Reconstitution: 2 mg + 2 mL BAC = 1 mg/mL. 200 mcg = 0.2 mL = 20 units.
Critical: Never use on training days. IGF-1 competes with MGF. Use on rest days only.
PEG-MGF (PEGylated Mechano Growth Factor)
PEG MGF-2X | IGF-1 Splice Variant — Muscle Satellite Cell Activator | CAS: 108174-48-7
PEG-MGF is the PEGylated form of Mechano Growth Factor, a splice variant of IGF-1 produced locally in muscle in
response to mechanical stress. It activates muscle satellite cells (stem cells), promoting new muscle fiber formation and
hypertrophy. PEGylation extends half-life from minutes to days. Most effective administered post-workout to
stretched/loaded muscle groups.
DOSING PROTOCOL
| Parameter | Details |
|---|---|
| Dose | 200–400 mcg SubQ or IM, 2–3x/week |
| Timing | Post-workout (within 30–60 min); inject near worked muscles |
| Cycle Length | 4–6 weeks on; 4 weeks off (receptor desensitization) |
STACKING RECOMMENDATIONS
Pair with IGF-1 LR3 for comprehensive IGF signaling (PEG-MGF activates satellite cells; LR3 drives protein synthesis). Add
GH secretagogues as base. BPC-157 for connective tissue support.
NOTE: Cycle off to prevent satellite cell receptor desensitization. Most anabolic per-dose of IGF variants. Local injection to target muscle
groups yields best results.
From Collection
HGH 191AA | HGH191-X (12 IU)
XENE BIOLABS RESEARCH SERIES
FOR RESEARCH USE ONLY
Category: Growth Hormone | Half-life: 20-30 min SubQ, 3.5h IV
Mechanism
Identical to endogenous GH. Binds GH receptor → IGF-1 release, lipolysis, anabolism, glucose regulation.
Dosing Protocol
Reconstitution: 10 IU + 1 mL BAC = 10 IU/mL. 2 IU = 0.2 mL = 20 units.
Critical: Monitor glucose, IGF-1, TSH. Can cause insulin resistance, carpal tunnel, edema at high doses.
IGF-1LR3
XENE BIOLABS RESEARCH SERIES
FOR RESEARCH USE ONLY
Category: Lipolytic Peptide | Half-life: 20-30 min
Mechanism
Modified hGH Frag 176-191 | FRAG-X. Tyr-hGH 177-191. Same fat-burning domain as Frag, stabilized. No GH/IGF-1 effects.
Dosing Protocol
Reconstitution: 2 mg + 1 mL BAC = 2 mg/mL. 300 mcg = 0.15 mL = 15 units.
Critical: Identical to hGH Frag 176-191 | FRAG-X. Must be fasted. Insulin blocks effect.
IGF-DES-2X
XENE BIOLABS RESEARCH SERIES
FOR RESEARCH USE ONLY
Category: Growth Factor | Half-life: 20-30 min
Mechanism
Mechanism
DES variant of IGF-1 with N-terminal truncation. 10x more potent than IGF-1 LR3 for acute muscle hyperplasia. Binds muscle cells directly, bypasses IGFBP.
Dosing Protocol
Reconstitution: 1 mg + 1 mL BAC = 1000 mcg/mL. 20 mcg = 0.02 mL = 2 units.
Critical: Take immediately post-training into muscles worked. Must have carbs intra/post.