Is adding two GHRPs better than one?

In research models, stacking GHRPs with a GHRH analog can broaden receptor coverage, though GHRP-2 and GHRP-6 act on the same ghrelin receptor, so the marginal benefit over a single optimized GHRP is debated.

What is the 'Viking 1' name?

Viking 1 is a vendor marketing name used by some suppliers for this specific Sermorelin / GHRP-6 / GHRP-2 combination.

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Growth Hormone Secretagogues

Research Chemical

Sermorelin / GHRP-6 / GHRP-2 Blend

Also known as: Sermorelin & GHRP-6 & GHRP-2, Viking 1

A triple research blend pairing the GHRH analog Sermorelin with two ghrelin-receptor agonists, GHRP-6 and GHRP-2. It is studied for maximal synergistic stimulation of endogenous growth hormone.

Mechanism of Action

Sermorelin (GHRH 1-29) binds the pituitary GHRH receptor to promote GH synthesis and release, while GHRP-6 and GHRP-2 both activate the GHS-R1a (ghrelin) receptor to evoke additional GH pulses and suppress somatostatin. Combining a GHRH analog with two complementary GHRPs is intended to maximize the amplitude of pulsatile GH secretion. The blend leverages multiple receptor inputs to drive downstream hepatic IGF-1 production while preserving the natural feedback architecture of the GH axis.

Half-life: Mixed: Sermorelin ~10-20 minutes, GHRP-6 ~15-60 minutes, GHRP-2 ~30-60 minutes
Administration Routes: subcutaneous
Research Status: Research Chemical