HCG is a glycoprotein hormone produced by placental tissue during pregnancy that mimics luteinizing hormone, discussed throughout this site in the context of fertility and reproductive medicine. Human growth hormone, commonly abbreviated HGH, is produced by the pituitary gland and drives growth in childhood and metabolic regulation throughout life. IGF-1, insulin-like growth factor 1, is produced primarily by the liver in response to HGH stimulation and mediates many of HGH's downstream effects on tissue.
These three hormones operate in almost entirely separate physiological systems, and confusing them can lead to real misunderstanding about what each one actually does and what it is used for medically.
Part of the confusion comes from the fact that all three appear in similar online conversations about hormone optimization, anti-aging, and bodybuilding, often mentioned in the same breath despite having unrelated mechanisms. Another part comes from the fact that all three are peptide or protein hormones administered by injection in their pharmaceutical forms, which creates a surface-level similarity that does not reflect how differently they actually function.
A clear illustration of this difference: hCG works by activating the LHCGR receptor shared with luteinizing hormone, discussed in our article on hCG and LH, while HGH and IGF-1 work through an entirely separate signaling axis centered on the growth hormone receptor and IGF-1 receptor, respectively.
HCG is used clinically in fertility treatment and in certain forms of male hypogonadism, as discussed in our articles on hCG and male fertility and hCG in hypogonadism treatment. HGH is used clinically to treat diagnosed growth hormone deficiency and certain other approved pediatric and adult growth-related conditions. IGF-1 has narrower, more specialized clinical applications, primarily in specific growth disorders where the body does not respond normally to HGH itself.
None of the three hormones is interchangeable with another for any clinical purpose, and each requires its own distinct diagnostic workup before a physician would consider prescribing it.
This is also why online marketing that lumps these hormones together under vague labels like hormone optimization should be treated with caution. A legitimate clinical need for one of these three hormones is diagnosed through specific laboratory testing targeted at that hormone, not inferred from general symptoms alone.
In the UAE, all three hormones are classified as prescription-only pharmaceuticals, obtainable only through a licensed physician and pharmacy. HCG's regulatory status specifically is covered in our dedicated article on hCG regulation under MoHAP, and the same underlying principle, prescription control based on medical necessity and monitoring, applies across HGH and IGF-1 as well.
None of the three can legally be purchased over the counter, imported informally, or obtained outside a licensed medical relationship in the UAE.
REVIVE LAB UAE supplies non-prescription research peptides intended for laboratory and research use, a category distinct from prescription pharmaceuticals like hCG, HGH, and IGF-1. REVIVE LAB UAE does not sell, stock, or supply hCG, HGH, or IGF-1 in any pharmaceutical form.