≥99% puritySemax
1 size · Mass-spec verified
From$60
Cold-chain shipping · Lot-traceable · Third-party CoA
Research use only
Featured
≥99% purity1 size · Mass-spec verified
From$60
≥99% purity3 sizes · Mass-spec verified
From$160
≥99% purity3 sizes · Mass-spec verified
From$160
≥99% purity1 size · Mass-spec verified
From$90
≥99% purity1 size · Mass-spec verified
From$80
≥99% purity1 size · Mass-spec verified
From$265
≥99% purity1 size · Mass-spec verified
From$230
≥99% purity1 size · Mass-spec verified
From$70
Backed by the molecule
Every NextGen compound is solid-phase synthesized, HPLC purified to research grade, and confirmed by mass-spectrometry. The lot you receive matches the molecule we publish — to four decimal places of mass.
See the methodology
HPLC Trace
Purity 99.42% · Run 14:32
Every lot is mass-spectrometry verified. Compound identity is recorded to four decimal places of molecular mass, archived to the lot.
HPLC profiles are run on every batch. Purity floor is 99% on the principal peak — the trace ships with the vial.
From synthesis to your bench: ‐20°C storage, vacuum-sealed, supervised hand-off. No undocumented temperature excursions.
Browse by goal
46compounds, organized into seven research-aligned categories — pick the bench you’re working at.
Peptides researched for memory, focus, neuroplasticity, sleep architecture, and stress resilience.
Browse Cognitive & MoodGLP-1 agonists, dual-incretin agonists, and metabolic compounds studied for body recomposition.
Browse Weight Loss & MetabolicCompounds investigated for tissue repair, anti-inflammatory action, and accelerated wound recovery.
Browse Recovery & HealingGrowth-hormone secretagogues, IGF analogs, and performance-oriented research peptides.
Browse Growth & PerformanceMitochondrial, NAD+, telomere, and senolytic-adjacent compounds studied for cellular vitality.
Browse Longevity & CellularMelanocortin-pathway peptides and central-nervous-system compounds studied for libido and arousal.
Browse Sexual WellnessBacteriostatic water and reconstitution-adjacent reagents required for downstream research.
Browse Lab Supplies & DiluentsProtocol
Designed around the rhythm of a working laboratory.
Browse the catalog by molecule, concentration, and lot. Every page exposes the underlying CoA before purchase.
Vials ship vacuum-sealed inside a temperature-monitored container. Tracking includes a thermal log.
Match the lot number on the vial to your CoA. The mass-spec trace and HPLC chromatogram are downloadable.
Research-use disclosure
NextGen products are sold strictly for laboratory research. By entering this catalog you confirm you are at least 21 years old and you agree to our terms, privacy policy, and the use of cookies.