Stacked
Mainstream injectable peptides (BPC-157, TB-500, GHK-Cu, MOTS-c, Tesamorelin)Vendor profile
RNX Research logo

RNX Research

rnxresearch.com ↗

Mainstream injectable peptides (BPC-157, TB-500, GHK-Cu, MOTS-c, Tesamorelin)GLP class (Tirzepatide 30mg, Retatrutide 10mg)Tight focused catalog with volume discount tiers (1 / 5 / 10 vial pricing)
Stacked Score
54
/ 100Caution
Medium confidenceUpdated 1 day agoMethodology →

RNX Research is a newer vendor with limited community history and no third-party validation for their products, relying solely on in-house quality control. They offer a small catalog of 7 listings and accept credit card payments only. There is no significant community feedback available from Reddit or Trustpilot, and their YouTube presence does not provide relevant insights into their operations. The vendor has a clean FDA regulatory record.

15YOUTUBE3JANOSHIK

Score Breakdown

  • Purity Testing20%
    55/100
  • Community Reputation15%
    45/100
  • FDA / Regulatory13%
    85/100
  • Shipping & Fulfillment12%
    50/100
  • Payment Security10%
    60/100
  • Customer Service10%
    50/100
  • Catalog Depth10%
    55/100
  • Price Competitiveness10%
    60/100

Evidence

Pros & Cons

Pros

  • Tight 7-SKU catalog focused on the mainstream injectable peptides — less decision fatigue than 60+ SKU storefronts
  • Vendor states ≥99% HPLC/MS verified purity across the catalog
  • Volume discount tiers built into every SKU — 5 vials at 20% off, 10 vials at 40% off — for researchers running scaled protocols
  • Mainstream GLP class covered — Tirzepatide 30mg + Retatrutide 10mg in stock alongside the staple healing peptides
  • Public 20% off banner site-wide for any visitor — not affiliate-keyed but lowers entry-level pricing

Cons

  • Very small SKU count (7 products total) — no Semaglutide, no bioregulators, no cognitive line, no blends
  • No public Janoshik / Finnrick / community-independent third-party COA library on the site, no specific testing lab named
  • Newer entrant — limited Reddit / YouTube footprint at first scrape
  • Single vial size per compound (no per-compound mg tiering — only quantity tiering)

Specialties

Mainstream injectable peptides (BPC-157, TB-500, GHK-Cu, MOTS-c, Tesamorelin)GLP class (Tirzepatide 30mg, Retatrutide 10mg)Tight focused catalog with volume discount tiers (1 / 5 / 10 vial pricing)

Payment Methods

Credit card

Shipping

Domestic
Standard carrier shipping
International
No
Tracking
Yes
Carriers
—

Testing Methodology

Vendor states ≥99% purity HPLC/MS verified in product copy across the catalog. No public per-batch COA library on the site and no specific testing lab named.

FDA Warning History

No FDA warning letters on record.

Product Catalog

Every product we track from RNX Research, linked to its peptide research profile. Prices refreshed periodically — verify on the vendor site before ordering.

Affiliate Disclosure

Disclosure

Stacked earns a commission on purchases via affiliate links on this page. This does not influence our Stacked Score methodology.