Which should you choose? Here's what you need to know.
Hexarelin and MK-677 are both growth hormone peptides, but they work differently. One of the strongest growth hormone releasing peptides available. Also studied for potential cardioprotective effects. Also called Ibutamoren. Taken orally rather than injected, it tells the body to release more growth hormone. Technically a secretagogue, not a peptide, but sold alongside them everywhere. Compare vendor pricing and availability below.
On 19 Sep 2026 Peptide Compare tracked 19 vendors selling Hexarelin, cheapest in stock $6.60 per mg at AMC Essentials, and 8 selling MK-677, cheapest $2.00 per mg at Soma Chems.
One of the strongest growth hormone releasing peptides available. Also studied for potential cardioprotective effects.
Also called Ibutamoren. Taken orally rather than injected, it tells the body to release more growth hormone. Technically a secretagogue, not a peptide, but sold alongside them everywhere.
Once you've decided which peptide fits your needs, here's how they compare on price and vendor options. Prices verified Sep 19, 2026.
Our top-rated vendor for each, based on trust scores, purity testing, and price.
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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.