Compared with Sep 27, 2026
Rolling edition · updates with the daily pipeline
PEPTIDEBENCHMARK MARKET INTELLIGENCE
October 2026
Peptide Price Index
Data through Oct 4, 2026INDEX VALUE119.95-7.9% 28 days
Baseline = 100 on Jun 3, 2026
Compared with Sep 6, 2026
Current lanes with at least three vendors
2,636 vendor observations
MARKET BREADTH
Most tracked medians moved lower
Movement is based on each peptide’s median effective price per milligram, with ±0.5% treated as approximately flat.
41down
15flat
5up
28-DAY MOVERS
The largest changes in median effective $/mg
These are market-lane medians—not a single vendor’s promotion or a claim about completed transactions.
Largest decreases
01Oxytocin39 vendors · $5.78/mg-26.8%02Retatrutide17 vendors · $5.87/mg-24.9%03FOXO4-DRI22 vendors · $12.15/mg-21.6%04SLU-PP-33213 vendors · $10.40/mg-19.3%05Gonadorelin6 vendors · $9.22/mg-18.1%06Tirzepatide15 vendors · $3.42/mg-16.6%07Semaglutide12 vendors · $6.45/mg-14.0%08Glutathione68 vendors · $0.0510/mg-13.3%Largest increases
01Adipotide5 vendors · $13.30/mg+2.8%02Mazdutide10 vendors · $9.00/mg+0.9%03Thymalin12 vendors · $5.01/mg+0.8%04Pinealon45 vendors · $3.63/mg+0.8%05TB-50093 vendors · $6.25/mg+0.8%NEW OBSERVED LOWS
Median prices at a new tracked low
Requires at least 14 qualifying observations and three current vendors. Gaps are not interpolated.
No qualifying new median lows
The absence of a new low is itself retained with this edition; PB does not force a headline when the data does not support one.
MARKET DEPTH
The most broadly priced peptide lanes
Vendor and offer counts help readers distinguish broad market signals from thinner listings.
| Peptide | Vendors | Offers | Median effective / mg | Current low / mg | 28 day |
|---|---|---|---|---|---|
| MOTS-c ↗ | 113 | 244 | $3.72 | $0.7470 | -6.4% |
| BPC-157 ↗ | 113 | 226 | $4.90 | $0.7470 | -8.1% |
| GHK-Cu ↗ | 113 | 226 | $0.5999 | $0.1980 | -7.7% |
| Tesamorelin ↗ | 102 | 190 | $6.53 | $2.03 | -6.7% |
| Ipamorelin ↗ | 99 | 141 | $5.40 | $0.7920 | -3.6% |
| DSIP ↗ | 94 | 127 | $5.40 | $0.8640 | -0.0% |
| KPV ↗ | 94 | 119 | $4.50 | $0.7470 | -7.0% |
| NAD+ ↗ | 93 | 174 | $0.1100 | $0.0400 | -3.5% |
| TB-500 ↗ | 93 | 155 | $6.25 | $1.71 | +0.8% |
| Semax ↗ | 93 | 131 | $3.98 | $0.8190 | -9.3% |
| Selank ↗ | 92 | 121 | $4.37 | $0.8190 | -0.8% |
| PT-141 ↗ | 91 | 111 | $4.00 | $0.7470 | -4.8% |
METHODOLOGY & CITATION
What this report measures—and what it does not
Every edition carries its construction and coverage snapshot so later citations are interpreted against the data available at publication.
Tracked listing prices
Median effective USD per milligram across exact-comparability offers, using the discount rules recorded with each pricing snapshot.
Fixed-cohort index
Equal-weighted fixed cohort. Each eligible peptide is normalized to 100 at its first observation; daily index values average available normalized medians and require at least 70% cohort coverage.
Coverage limits
This is a tracked-listing index, not a transaction-price index. Vendor mix, availability, quantities, discounts, and catalog coverage can change over time.
SUGGESTED CITATION
PeptideBenchmark. “October 2026 Peptide Price Index Report.” Data through Oct 4, 2026. https://peptidebenchmark.com/prices/reports/2026-10/