A note before this page goes further
This page describes what's commonly discussed or studied about combining certain peptides — it is not a stacking guide, and it doesn't include dosing. Combining any two active compounds introduces interaction risks that are almost never formally studied, even when each compound individually has some human data.
BPC-157 + TB-500
Probably the most frequently discussed pairing in the healing/recovery space. The rationale given is that BPC-157's proposed gut-and-tissue repair mechanism and TB-500's proposed cell-migration/angiogenesis mechanism are complementary rather than overlapping. No controlled human trial has tested the combination specifically — the evidence for each compound individually is preclinical-to-early-human at best, so evidence for the combination is essentially absent.
CJC-1295 + Ipamorelin
A GHRH analog (CJC-1295) paired with a ghrelin-receptor agonist (Ipamorelin), on the reasoning that stimulating growth hormone release through two separate pathways produces a larger combined effect than either alone. This combination has more mechanistic logic behind it than most — the two pathways are genuinely distinct — but combined human safety/efficacy data specific to the pairing is still lacking.
Semax + Selank
Both developed at the same Russian research institute, sharing a stabilizing molecular motif. Semax is discussed for cognitive/BDNF effects, Selank for anxiolytic effects — the pairing is framed as "focus plus calm." Both have individual regional regulatory approval in Russia; the combination itself hasn't been through the same registration trials.
The general pattern
Nearly every peptide combination discussed online follows the same shape: two compounds with plausible, non-overlapping mechanisms, individually studied to some degree, combined based on reasoning rather than a trial of the combination itself. That doesn't make the reasoning wrong — but it does mean "people combine these" is a description of a practice, not evidence that the practice is safe or effective.