A synthetic fragment loosely based on a stomach-protein sequence, sold as a heal-everything injury peptide. The internet loves it; the human evidence is almost non-existent.

A synthetic GHRH analog that tells your body to make more growth hormone. Half the GH stack, endlessly confused over 'DAC vs no-DAC,' and marketed as 'safe GH' — a phrase that's doing a lot of work.

The 'growth hormone without the GH' combo — cleaner marketing than most, which is exactly the trap.

A naturally occurring copper-binding tripeptide with genuinely decent evidence — as a topical skincare ingredient. The moment people start injecting it as a 'youth reset,' the evidence falls off a cliff.

The 'heal faster and look better' bundle — and a textbook case of a stack name meaning different things to different people.

A selective growth-hormone secretagogue, the gentle-reputation other half of the GH stack. 'Cleaner' than the older GHRPs — which people wrongly read as 'proven safe.'

GLOW plus a 'K' — an anti-inflammatory add-on that mostly adds another unknown.

A tiny anti-inflammatory tripeptide, the 'K' bolted onto the GLOW stack to make KLOW. Sold as the gut/inflammation add-on — with essentially no human data behind it.

An orally active growth-hormone secretagogue — crucially, NOT a peptide, despite living in peptide forums. It genuinely raises GH and IGF-1; it also genuinely raises appetite, water retention, and blood sugar.

An experimental Eli Lilly weight-loss drug hitting three gut-hormone receptors at once. In real trials it produced eye-watering fat loss — which is exactly why the grey market is selling unapproved copies of it.

The GLP-1 drug that started the whole metabolic gold rush — approved, heavily studied, and not a grey-market mystery box. Branded semaglutide and grey powder sold as 'semaglutide' are not the same product, and regulators are blunt about it.

A synthetic version of part of the thymosin beta-4 protein, sold as BPC-157's recovery sidekick. Popular in horse racing before it was popular in gyms — which tells you where the evidence comes from.

A GHRH analog that's actually FDA-approved — for a specific condition (HIV-associated belly-fat accumulation). That approval makes it a rare high-evidence peptide, and a useful yardstick for judging everything else.

An approved, dual-hormone diabetes and weight-loss medicine with some of the strongest human evidence in this entire category. The catch: 'tirzepatide' bought as grey-market powder is a completely different risk story from the prescribed drug.

The internet's favourite 'heal like Wolverine' combo — and its most-searched stack by a mile.