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This is for Research Use Only (RUO) purposes. Anything contained on this page should not be considered medical advice and should not be used for human experimentation, nor is it intended to treat or cure any medical conditions or concerns. All health matters should be discussed with a qualified, licensed medical professional.

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Cognitive Edge — research peptide vial
Bundles

Cognitive Edge

Save $15
2-Vial Bundle
SemaxSelank
$75/bundle

Semax + Selank. Semax boosts BDNF and neuroplasticity for sharper focus and memory. Selank modulates GABA and serotonin for calm without sedation. Focus and composure together.

Direct link primalyield.com/shop/cognitive-edge

Semax sharpens your mind while Selank removes the anxiety that gets in the way of peak performance. Together they address the two biggest cognitive limiters: insufficient BDNF-driven neural performance and excess cortisol-driven stress interference. Russian researchers developed these as companion compounds.

Stack mechanism
Semax (ACTH 4-7 analog) upregulates BDNF/NGF/VEGF in PFC and hippocampus, enhancing LTP and AMPA receptor potentiation. Selank (tuftsin analog) modulates GABAergic inhibition and serotonin catabolism, increasing Met-enkephalin and reducing CRH. Complementary dual-mechanism: Semax drives cognitive enhancement while Selank eliminates performance-limiting anxiety and cortisol elevation.
Research Use Only. This product is sold strictly for laboratory research purposes. Nothing on this page is medical advice, and none of it is intended for human experimentation or to diagnose, treat, or cure any condition. Discuss all health matters with a qualified, licensed medical professional.
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GH Body Recomp
Bundles

GH Body Recomp

CJC-1295 + Ipamorelin 5mg+5mgTesamorelin 10mg
2-Vial Bundle
CJC-1295 + Ipamorelin + Tesamorelin. Two GH secretagogues paired with the peptide clinically studied for visceral fat reduction. Burn fat, preserve muscle, recomp your physique.
$160/bundle
Save $15
Wolverine Elite
Bundles

Wolverine Elite

BPC-157 + TB-500 5mg+5mgGHK-Cu 50mg
2-Vial Bundle
BPC-157 + TB-500 in one vial, paired with GHK-Cu. The original Wolverine Stack plus GHK-Cu for collagen synthesis and tissue regeneration. Localized healing, systemic recovery, and cellular repair in two vials.
$85/bundle
Save $15
Sleep & Repair
Bundles

Sleep & Repair

DSIPBPC-157KPV
3-Vial Bundle
DSIP + BPC-157 + KPV. Deep delta sleep, gut and tissue repair, and inflammation reduction — all three work best overnight, making this the ultimate overnight recovery stack.
$75/bundle
Save $25
Longevity Foundation
Bundles

Longevity Foundation

NAD+EpithalonGHK-Cu
3-Vial Bundle
NAD+ + Epithalon + GHK-Cu. Cellular energy and DNA repair, telomere support and circadian regulation, and tissue regeneration — targeting the three core pillars of biological aging.
$135/bundle
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