PRPEPS
Updated Oct 31, 2026
01At a glance
Named lab · Lot COA · HPLC · Mass spec · Outside tested
Accessible
No warning letter, no copied name
02Testing
No lab named.
Says a third-party accredited laboratory tests every lot
Yes: a batch-level COA for every lot, searchable by product or batch number in its COA library (prpeps.com/coa).
HPLC purity (99% minimum), identity by mass spectrometry, appearance, water content and residual solvents where applicable (stated).
03Prices
Prices run 21% below the median.
52 comparable compound and size pairs
26% below market on Oct 10, 2026, 21% below on Oct 31, 2026.
Carries 41 of our compounds (65 listings)
100% of listings in stock; prices checked 31 Oct 2026
| Compound | Lead size | Store $/mg | Market median $/mg | Difference |
|---|---|---|---|---|
| Retatrutide | 10 mg | $6.80 | $7.95 | -14% |
| Tirzepatide | 10 mg | $5.10 | $7.00 | -27% |
| Semaglutide | 10 mg | $3.40 | $6.90 | -51% |
| TB-500 / Thymosin Beta-4 | 10 mg | $4.25 | $6.40 | -34% |
| BPC-157 | 10 mg | $4.25 | $5.50 | -23% |
| Cagrilintide | 10 mg | $5.53 | $10.00 | -45% |
| Cartalax | 20 mg | $2.55 | $3.00 | -15% |
| Dihexa | 10 mg | $3.83 | $5.00 | -23% |
| DSIP (Delta Sleep-Inducing Peptide) | 5 mg | $5.95 | $7.00 | -15% |
| Epitalon | 10 mg | $2.55 | $4.00 | -36% |
| GHK-Cu | 50 mg | $0.68 | $0.80 | -15% |
| GLOW blend | 70 mg | $1.15 | $1.41 | -18% |
| KLOW blend | 80 mg | $1.27 | $1.50 | -15% |
| MOTS-c | 10 mg | $3.83 | $5.00 | -23% |
| NAD+ | 500 mg | $0.10 | $0.14 | -29% |
| PT-141 (Bremelanotide) | 10 mg | $3.40 | $4.30 | -21% |
| SS-31 (Elamipretide) | 10 mg | $5.10 | $5.10 | 0% |
| 5-Amino-1MQ | 50 mg | Not comparable | $1.60 | Not comparable |
| AOD-9604 | 5 mg | Not comparable | $9.80 | Not comparable |
| ARA-290 (Cibinetide) | 10 mg | $5.10 | $5.00 | 2% |
| BPC-157 + TB-500 | 20 mg | Not comparable | $4.70 | Not comparable |
| CJC-1295 no DAC (Mod GRF 1-29) | 5 mg | Not comparable | $7.80 | Not comparable |
| CJC-1295 with DAC | 5 mg | $7.65 | $10.40 | -26% |
| IGF-1 LR3 | 1 mg | $55.25 | $71.00 | -22% |
| Ipamorelin | 10 mg | $3.83 | $5.50 | -30% |
| Ipamorelin + CJC-1295 (no DAC) blend | 10 mg | Not comparable | $6.00 | Not comparable |
| Kisspeptin | 10 mg | $4.25 | $5.50 | -23% |
| KPV | 10 mg | $4.25 | $5.20 | -18% |
| LL-37 | 5 mg | $7.65 | $11.80 | -35% |
| Melanotan I (Afamelanotide) | 10 mg | $3.40 | $3.80 | -11% |
| Melanotan II | 10 mg | $3.40 | $3.80 | -11% |
| MitoPrime blend (NAD+ / MOTS-c / 5-Amino-1MQ) | 120 mg | Not comparable | $1.21 | Not comparable |
| Oxytocin | 10 mg | $3.40 | $5.20 | -35% |
| PEG-MGF | 2 mg | Not comparable | $19.75 | Not comparable |
| Pinealon | 10 mg | $2.98 | $4.70 | -37% |
| Selank | 10 mg | $3.83 | $4.50 | -15% |
| Semax | 10 mg | $3.83 | $4.50 | -15% |
| Semax + Selank blend | 10 mg | Not comparable | $6.00 | Not comparable |
| Sermorelin | 10 mg | $5.53 | $6.90 | -20% |
| SLU-PP-332 | 5 mg | Not comparable | $13.40 | Not comparable |
| Thymosin Alpha-1 | 10 mg | $5.10 | $7.00 | -27% |
05Company and payment
How you can pay
Accepts credit cards: Yes
Visa, Mastercard, American Express and Discover (through BarterPay); Cash App and Venmo
Who's behind it
Premier Research LLC
None listed; contact form and info@prpeps.com
Custom storefront (prpeps.com). Store-wide 15% sale on every product as of 10 Oct 2026. Ships to the 50 states and DC only; dispatch within one business day; free shipping over $250. 10% off a first order by email sign-up. Sells its GLP products under house names GLP-1 SM, GLP-2 TZ and GLP-3 RT, and lists both TB-500 and full-length thymosin beta-4. Runs an affiliate program
Coupon code
peptidedecoding
Orders using our code pay this site a commission. Commissions never change the prices shown, the sort order, badges, flags, or audit findings.
06Dates
- Prices last read
- Oct 31, 2026
- Profile last reviewed
- Oct 19, 2026
- Slice generated
- Nov 2, 2026