Semax is a synthetic heptapeptide (MW 813.94 Da) studied for BDNF upregulation and cognitive research. It is supplied as a lyophilized powder and, unusually, is well suited to intranasal administration — a factor worth considering when sourcing.
What to Look for When Sourcing Semax
Require a third-party COA confirming ≥98% purity by HPLC and the correct 813.94 Da molecular weight. Because Semax is often used intranasally, sterile handling and sealed, well-labeled vials matter for reproducible research.
Typical Price Range
Research-grade Semax typically costs around $25–$45 per vial. Prices significantly below this often indicate underdosed vials or unverified purity.
Storage and Handling
Store lyophilized Semax at 2–8°C. Reconstituted or nasal-solution Semax should be refrigerated and used within the vendor's stated window; it is more stable than many peptides but still degrades at room temperature over time.
Red Flags to Avoid
Avoid vendors with no COA, purity claims without HPLC documentation, vague sourcing, or human-use claims. Semax is approved as a nootropic in Russia — that regional status does not equal FDA approval, and research-grade material is for laboratory use only.
Top Recommended Source
Purgo Labs is our top-rated source based on third-party COA verification, research-grade purity, and transparent manufacturing. View at Purgo Labs.