New — Free Peptide Starter Guide (2026): 13 chapters, 34 cited studies

Get it free
ToolsCompareEnclomiphene vs PGPIPN

Enclomiphene vs PGPIPN

Side-by-side comparison of key properties, dosing, and research.

GLP-1 / Weight Loss Agonists
Enclomiphene
Immune Support
PGPIPN
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.
PGPIPN is a bioactive hexapeptide (Pro-Gly-Pro-Ile-Pro-Asn) derived from beta-casein during enzymatic digestion. It exhibits anti-inflammatory properties via opioid receptor modulation and cytokine suppression, making it relevant for gut health, systemic inflammation, and as a component of casein-derived functional foods.
Half-Life
5-7 days (long half-life; accumulates)
Estimated 30-120 minutes (peptide degradation)
Admin Route
Oral
Oral, Subcutaneous (research)
Research
Typical Dose
12.5-25 mg per day
200-500 mg per day
Frequency
Once daily or every other day
Once or twice daily
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)
  • Anti-inflammatory effects via cytokine suppression
  • Gut mucosal protection and intestinal barrier support
  • Opioid receptor modulation for gut motility regulation
  • Potential analgesic activity via central and peripheral opioid pathways
  • Explored for inflammatory bowel conditions and gut dysbiosis
  • Natural origin (food-derived) with favorable safety profile
Side Effects
  • Visual disturbances (rare but class-related SERM effect)
  • Mood changes or irritability
  • Hot flashes
  • Elevated estradiol in some users
  • +2 more
  • Generally very well-tolerated given food-derived origin
  • Theoretical opioid-mediated constipation at high doses
  • Rare milk protein allergy in casein-sensitive individuals
Stacks With