Cognitive & Nootropic Research Peptides
Semax and Selank are the two most studied nootropic peptides, investigated for BDNF/NGF expression, attention and stress-response modulation. Both ship from Peptide Logix at 99%+ verified purity.

- 99%+ HPLC verified purity
- Third-party USA lab tested
- Same-day US shipping
Semax
An ACTH(4-10) analog studied for neurotrophic factor expression, attention and cognitive endurance under load. Available in 10mg and 30mg vials.
Selank
A tuftsin analog studied for non-sedating anxiolytic effects through GABAergic and enkephalin pathways, often paired with Semax in research designs.
Handling
Both peptides are supplied lyophilized. Reconstitute with bacteriostatic water, refrigerate and follow the stability window on the COA.
Available in this category
Semax 10mg
Russian-developed nootropic heptapeptide.
View productSemax 30mg
Higher-mass nootropic heptapeptide vial.
View productSelank 10mg
Anxiolytic nootropic heptapeptide.
View productNAD+ 500mg
Nicotinamide adenine dinucleotide — cellular energy coenzyme.
View productNAD+ 1000mg
High-mass NAD+ vial.
View productFrequently asked questions
Shop nootropic peptides
Third-party verified, 99%+ purity, shipped same day from the USA.
Related research categories
Longevity & Cellular Health Research Peptides
Longevity research peptides — NAD+ 500mg & 1000mg, glutathione, SS-31 and thymosin alpha-1. 99%+ purity, third-party verified, US shipping.
Healing & Recovery Research Peptides
Research peptides for tissue repair and recovery — BPC-157, TB-500 and Wolverine blends. 99%+ purity, third-party tested, fast US shipping.
All products are sold strictly for in-vitro laboratory research. Not for human consumption, medical, or veterinary use.