Which should you choose? Here's what you need to know.
CJC-1295/Ipamorelin stimulates your body to produce more GH naturally, which then raises IGF-1 through normal pathways. IGF-1 LR3 skips all that and delivers growth factor directly.
The CJC-1295/Ipamorelin stack works upstream — it tells your pituitary to release more GH, which your liver converts to IGF-1. It's a physiological approach that preserves natural feedback loops.
Choose CJC-1295 + Ipamorelin if:
You want a natural, feedback-preserving approach to raising GH and IGF-1 — safer for long-term use.
IGF-1 LR3 is a synthetic, long-acting growth factor that bypasses the GH system entirely. It's approximately 2.5x more potent than natural IGF-1 and acts directly on muscle tissue.
Choose IGF-1 LR3 if:
You want direct, potent growth factor stimulation and understand the additional risks of bypassing your body's natural GH regulation.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
We re-check vendor prices continuously and score vendors on Finnrick blind-test results — samples bought anonymously and sent to a lab, not vendor claims. No vendor can pay to rank higher. See our full methodology.