Peptide market, week of Oct 26, 2026
Generated from the 2026-W44 price snapshot and compared with the week of Oct 19, 2026. Every vendor and compound links to its page.
Data as of (newest price observation in this week's snapshot)
Closures and status events
No status events were recorded this week.
Biggest price moves
9 vendor and compound pairs changed their cheapest price per mg by 5% or more against the week of Oct 19, 2026. The largest falls and rises:
Falls
- Semaglutide at Royal Peptides: $5.87 to $4.27 per mg (down 27.3%)
- Tirzepatide at PSPeptides: $3.33 to $2.75 per mg (down 17.5%)
- Thymosin Alpha-1 at Nationwide Peptides: $9.50 to $8.10 per mg (down 14.7%)
Rises
None of 5% or more this week.
Widest spreads and arrivals
- Glutathione: $0.0064 to $0.240 per mg, 37.5× across 36 listings from 22 vendors.
- 5-Amino-1MQ: $0.945 to $29.50 per mg, 31.22× across 29 listings from 17 vendors.
- SS-31: $2.08 to $22.45 per mg, 10.8× across 25 listings from 13 vendors.
No vendor was priced this week that was not priced last week. No compound was priced this week that was not priced last week.
Prices are observations recorded from each vendor’s own public store data at the timestamp shown, not live quotes. Some vendor links may be affiliate links and vendors may buy labelled placements (see disclosures). Commercial arrangements never affect a purity result or a published grade.