Enclomiphene vs IGF-1 DES
Side-by-side comparison of key properties, dosing, and research.
GLP-1 / Weight Loss Agonists
EnclomipheneAnabolic & IGF
IGF-1 DES- Summary
- Enclomiphene is the trans-isomer of clomiphene citrate, a selective estrogen receptor modulator (SERM) that stimulates endogenous testosterone production by blocking estrogen negative feedback on the hypothalamus and pituitary. Unlike TRT, it restores testosterone while preserving or increasing sperm production and testicular volume.
- IGF-1 DES (also written DES(1-3)IGF-1) is a truncated form of IGF-1 missing the first three amino acids of the N-terminus. This structural change dramatically reduces its affinity for IGF binding proteins (IGFBPs), meaning a far greater fraction remains in its free, active form. IGF-1 DES is estimated to be 10x more potent than standard IGF-1 LR3 at the receptor level locally, making it particularly effective for site-specific muscle growth when injected intramuscularly.
- Half-Life
- 5-7 days (long half-life; accumulates)
- ~20–30 minutes (very short — designed for local action)
- Admin Route
- Oral
- IM, SubQ
- Research
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- —
- Typical Dose
- 12.5-25 mg per day
- 20–50 mcg per injection site
- Frequency
- Once daily or every other day
- Once daily, post-workout
- Key Benefits
- Restores testosterone to normal range without exogenous androgen administration
- Preserves or increases sperm production and fertility
- Maintains testicular volume (unlike TRT which causes testicular atrophy)
- LH and FSH levels rise, indicating intact HPG axis function
- Option for hypogonadal men desiring fertility
- Oral administration (no injection required)
- Estimated 10x greater potency at the receptor vs IGF-1 LR3 locally
- Minimal IGFBP binding — nearly all active upon injection
- Highly localized muscle growth effect when injected intramuscularly
- Activates satellite cells for muscle fiber hyperplasia potential
- Synergistic with GH peptides in post-workout anabolic protocols
- Shorter half-life reduces systemic exposure vs IGF-1 LR3
- Useful for site-specific muscle development
- Side Effects
- Visual disturbances (rare but class-related SERM effect)
- Mood changes or irritability
- Hot flashes
- Elevated estradiol in some users
- +2 more
- Hypoglycemia (most significant risk — especially post-workout)
- Localized muscle swelling at injection site
- Potential for jaw/organ growth (acromegalic effects) with prolonged high-dose use
- Carpal tunnel syndrome with high doses
- +1 more
- Stacks With
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