15% off every eligible research reference standard.*
How to save the most on your order:
- 15% Sitewide Sale — auto-applied to every eligible item, no code needed
- Bulk Discount — add more items, save more (5% / 10% / 15% at 3+ / 6+ / 11+ items). Stacks on top of either the sale or the coupon below.
- First-Order Coupon — new customers get 30% off with the WELCOME30 code. For each item you get the better deal — the sale price or 30% off retail — never both. Bulk pricing still stacks on top.
Discounts apply automatically at checkout after the coupon code is entered. See the per-line breakdown in your cart.
*See discount policy for the full rules + worked examples.
FEATURED PRODUCTS
Our most popular research-grade peptides
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Select options This product has multiple variants. The options may be chosen on the product page
Sale!
PP-2T (TRZ)
PP-2T (C₂₂₅H₃₄₈N₄₈O₆₈, 39aa synthetic research peptide, MW ~4,813 Da, CAS 2023788-19-2). Research-grade peptide on a GIP backbone with Aib²·¹³ and a C20 fatty diacid, used in dual-receptor cAMP-signaling assays, receptor-binding characterization at GIPR and GLP-1R, and BCAA catabolism research. ≥99% purity, lyophilized. Research use only. Not for human consumption.
Price range: $51.83 through $129.60
Price range: $44.06 through $110.16 -
Select options This product has multiple variants. The options may be chosen on the product page
Sale!
PP-3R (RET)
PP-3R (C₂₂₁H₃₄₂N₄₆O₆₈, 39aa synthetic research peptide, CAS 2381089-83-2). Research-grade peptide on a GIP backbone with Aib²·²⁰ and αMeL¹³ modifications plus a C20 fatty diacid, used in multi-receptor binding-affinity characterization at GLP-1R, GIPR, and GCGR, and in cellular signaling pathway research. ≥99% purity, lyophilized. Research use only. Not for human consumption.
Price range: $58.62 through $197.10
Price range: $49.83 through $167.54 -
Select options This product has multiple variants. The options may be chosen on the product page
Sale!
KLOW
KLOW Blend: GHK-Cu (C₁₄H₂₄N₆O₄·Cu, 50mg) + BPC-157 (C₆₂H₉₈N₁₆O₂₂, 15aa, 10mg) + TB-500 (C₂₁₂H₃₅₀N₅₆O₇₈S, 43aa, 10mg) + KPV (C₁₆H₃₀N₄O₄, Lys-Pro-Val tripeptide, 10mg). Four-component mixture extending the GLOW blend with α-MSH C-terminal fragment for combined ECM remodeling, tissue biology, and NF-κB pathway research. ≥99% purity, lyophilized. Research use only. Not for human consumption.
$99.99
$84.99 -
Select options This product has multiple variants. The options may be chosen on the product page
Sale!
GLOW
GLOW Blend: BPC-157 (C₆₂H₉₈N₁₆O₂₂, 15aa) + TB-500 (C₂₁₂H₃₅₀N₅₆O₇₈S, 43aa) + GHK-Cu (C₁₄H₂₄N₆O₄·Cu). Multi-component mixture for NO/VEGF signaling, actin dynamics, and ECM remodeling research. ≥99% purity, lyophilized. Research use only. Not for human consumption.
$89.92
$76.43
WHY RESEARCHERS CHOOSE US
Precisely Peptides delivers COA-verified research chemicals to qualified researchers. Every product undergoes independent third-party analysis to guarantee purity and identity.
- Third-party Certificate of Analysis
- High-purity verified — lyophilized for stability
- 24 hour fulfillment on orders
- Strict research-use-only policy on every product
Your satisfaction, guaranteed
Backed by independent lab testing and free shipping protection — so you can order with total confidence.
30-Day Satisfaction Guarantee
Return any unopened, factory-sealed vial within 30 days for a full refund. No restocking fee, no hassle.
99%+ Purity, Guaranteed
Every product ships with an independent third-party COA. If it ever tests below spec, we refund you, replace it free, and cover the test.
Free Shipping Protection
Orders $150+ — and our Senior Researcher loyalty tier and up — are protected against loss or damage in transit, free. Lost or damaged? We reship or refund.
We Make It Right
If anything about your order isn't right, we'll make it right — no questions asked. A free replacement ships with a prepaid label, and any refund lands in 3–5 business days.
