Starfish relaxin-like gonad-stimulating peptide (RGP) is the first identified peptide hormone with gonadotropin-like activity in invertebrates. RGP is a heterodimeric peptide. comprising A and B chains with disulfide cross-linkages. Although RGP had been named a gonad-stimulating substance (GSS). https://cosmeticssquadets.shop/product-category/baby-diaper/