FOR LABORATORY RESEARCH PURPOSES ONLY. This compound has not received FDA approval. All information shown is drawn from published laboratory research for educational purposes
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This site sells research products exclusively to qualified researchers and laboratories for in vitro and laboratory use. Please confirm before continuing.
Limitless Capsules is a multi-compound research formulation that combines four separately characterized compounds, Dihexa, Selank, Semax and NAD+, in a single capsule format. Limitless Capsules is supplied for laboratory research use only.
Limitless Capsules brings together four compounds in one formulation. Selank is a synthetic peptide analogue of tuftsin. Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH). NAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in all living cells. Dihexa is the fourth component of the formulation. The identity of each component in the batch is documented in the Product Specifications section on this page.
Limitless Capsules is supplied as a capsule rather than as a lyophilized powder in a vial. This format is described here for identification only and does not imply any route of use.
Limitless Capsules contains Dihexa, Selank, Semax and NAD+.
Limitless Capsules is supplied in capsule form for laboratory research use only.
Related Research Compounds: Semax / Selank – 20mg • NAD+ – 1000mg • Browse all Cognitive research compounds
For research use only. Not for human consumption. Not evaluated by the FDA. Not intended to diagnose, treat, cure, or prevent any disease. This compound has not received FDA approval. All information shown is drawn from clinical studies for educational purposes.
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Lab-verified quality
Each lot is analysed by Bioviridian before release. Below is the Certificate of Analysis for the most recent lot, as issued by the laboratory.
Overall purity
99.7%
RP-HPLC (214 nm)
View the signed COA (PDF)Check this certificate at bioviridians.com/coa-search.html with code COA7693.
Test results
5 of 5 conformHPLC retention time 1.992, 2.291, 2.480, 9.405 min · Signed: Shane Straight, M.S., Principal Chemist, Bioviridian Inc.
Every lot keeps its own signed certificate. Lots are listed newest first.
Lot LIMICAP7-2026
99.7%
Overall purity
Tested July 20, 2026
Open COAEarlier lots will appear here as new Certificates of Analysis are published.
Compound details
Molecular profile
Storage requirements
Storage guidance is provided with the product.
Published literature
8 peer-reviewed publications indexed on PubMed. Listed for reference only; inclusion does not imply any use, effect or endorsement.
FRONT PHARMACOL · 2016 Selank
Selank Administration Affects the Expression of Some Genes Involved in GABAergic Neurotransmission
Volkova A, Shadrina M, Kolomin T, et al. Front Pharmacol. 2016;7:31. doi:10.3389/fphar.2016.00031
Measured expression of genes involved in GABAergic neurotransmission in rat frontal cortex after Selank administration.
FRONT PHARMACOL · 2017 Selank
Filatova E, Kasian A, Kolomin T, et al. Front Pharmacol. 2017;8:89. doi:10.3389/fphar.2017.00089
Compared the effects of GABA, Selank and olanzapine on expression of GABAergic-neurotransmission genes in the IMR-32 neuroblastoma cell line.
BRAIN RES · 2006 Semax
Dolotov OV, Karpenko EA, Inozemtseva LS, et al. Brain Res. 2006;1117(1):54-60. doi:10.1016/j.brainres.2006.07.108
Measured BDNF and TrkB receptor expression in the rat hippocampus following Semax administration.
J NEUROCHEM · 2006 Semax
Dolotov OV, Karpenko EA, Seredenina TS, et al. J Neurochem. 2006;97 Suppl 1:82-6. doi:10.1111/j.1471-4159.2006.03658.x
Characterised specific binding of radiolabelled Semax in rat basal forebrain and measured local BDNF protein levels.
BMC GENOMICS · 2014 Semax
Medvedeva EV, Dmitrieva VG, Povarova OV, et al. BMC Genomics. 2014;15:228. doi:10.1186/1471-2164-15-228
Used genome-wide transcriptional analysis to profile gene-expression changes in rat brain after focal ischemia with and without Semax.
CELL MOL NEUROBIOL · 2010 Semax
Dmitrieva VG, Povarova OV, Skvortsova VI, et al. Cell Mol Neurobiol. 2010;30(1):71-9. doi:10.1007/s10571-009-9432-0
Examined transcription of neurotrophin and neurotrophin-receptor genes in rat brain after experimental cerebral ischemia in the presence of Semax or Pro-Gly-Pro.
SCIENCE · 2015 NAD+
NAD⁺ in aging, metabolism, and neurodegeneration
Verdin E Science. 2015;350(6265):1208-1213. doi:10.1126/science.aac4854
Reviewed NAD+ biosynthesis and consumption pathways and the role of NAD+-dependent enzymes such as sirtuins in metabolic and age-related processes.
NAT REV MOL CELL BIOL · 2021 NAD+
NAD(+) metabolism and its roles in cellular processes during ageing
Covarrubias AJ, Perrone R, Grozio A, et al. Nat Rev Mol Cell Biol. 2021;22(2):119-141. doi:10.1038/s41580-020-00313-x
Reviewed NAD+ synthesis, salvage and consumption (including by CD38, PARPs and sirtuins) and how cellular NAD+ levels change with age in model systems.
