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RT3 (Reta)

Rated 5.00 out of 5 based on 133 customer ratings
(133 customer reviews)

Price range: $25.00 through $160.00

High-purity triple receptor agonist research peptide (GLP-1/GIP/glucagon). ≥99% purity, USA-tested, lyophilized. For research use only.

Certificate of Analysis 3rd-party tested · RP-HPLC purity, ESI-MS identity, Karl Fischer moisture View Lab Report
- +
≥99% Purity — COA Available
Third-Party Lab Tested & Batch Certified
Ships in 1–3 Business Days
All sales are final. Due to the nature of the product, no returns, refunds, or exchanges are accepted once an order is placed.
SKU: RT3 Category:

RT3 — Triple Receptor Agonist Research Peptide

RT3 is a next-generation research peptide engineered to simultaneously engage three metabolic receptor targets: GLP-1, GIP, and glucagon receptors. This triple agonist mechanism represents a significant advancement over single- and dual-receptor compounds in preclinical metabolic research.

Mechanism of Action

RT3 activates glucagon-like peptide-1 (GLP-1) receptors to potentiate glucose-dependent insulin secretion, glucose-dependent insulinotropic polypeptide (GIP) receptors to enhance incretin signaling, and glucagon receptors to promote energy expenditure and lipid oxidation. The combined activation of all three pathways creates a synergistic metabolic effect studied extensively in preclinical models of obesity and insulin resistance.

Research Applications

  • Metabolic pathway modulation and energy homeostasis
  • Insulin sensitivity and glucose regulation studies
  • Appetite signaling and food intake research
  • Body composition and lipid metabolism investigations
  • Comparative studies with single- and dual-receptor agonists

Product Specifications

  • Quantity: 10mg per vial
  • Purity: ≥99% (HPLC verified)
  • Form: Lyophilized powder
  • Storage: Refrigerate after reconstitution
  • Testing: USA lab tested, COA available

For research purposes only. Not for human use or consumption.

Weight .25 oz
MG

5mg, 15 mg, 10mg, 30mg, 60mg, 20 mg

133 reviews for RT3 (Reta)

    Brittney
    Rated 5 out of 5
    March 24, 2026
    Got my Order fast! Great customer service and price. That’s important I can’t wait to try the product and tell my friends.
    Laura Lucio Falcon
    Rated 5 out of 5
    March 23, 2026
    My order came in within one week. Things I learned..1. Check your junk mail! 2. Order on your computer NOT your phone. Product came in packaged with no issues.
    Tcornett09
    Rated 5 out of 5
    March 23, 2026
    Got my first purchase from this company ordered. From other companies in the past and this was by far the best company I’ve ordered from from pricing, shipping, even the packaging was the best. I’ve found my go to source.
    RT3 (Reta) photo review
    Blaine Randolph
    Rated 5 out of 5
    March 23, 2026
    Received my Reta very quick within 2 days great recommended!
    Jenn P
    Rated 5 out of 5
    March 20, 2026
    Great Customer Service. Fast shipping. Responded within minutes when I contacted them with a question. Highly Recommend!
    RT3 (Reta) photo review
    Delinah W.
    Rated 5 out of 5
    March 20, 2026
    I’m hooked on Pepkits.shop!! Always great customer service with speedy replies and lightening fast processing and shipping. I started RT-3 several weeks ago, it’s amazing and definitely living up to all the hype! Ordered GHK-CU and got it in less than a week. You guys rock!!!! 💙
    Paulina Soto
    Rated 5 out of 5
    March 19, 2026
    Great customer service, fast shipping and great results
    Rated 5 out of 5
    March 19, 2026
    Very fast shipping and such a great quality product! I’ve been testing Reta for a month now and you can totally tell that it’s working!
    nrseprnces
    Rated 5 out of 5
    March 19, 2026
    Reta has been a life saver for me!!! I have been on it for 9 months and could not be happier. Pepkits has been a pleasure to work with. Very responsive to questions and very quick shipping
    Joe M
    Rated 5 out of 5
    March 19, 2026
    Fast shipping, and the customer service was on point
    Amy Collins
    Rated 5 out of 5
    March 17, 2026
    First of all customer service is great. Shipping fast today is day two and I’m already noticing a difference. Will definitely keep using pepkits
    RT3 (Reta) photo review
    Vaneza Gomez
    Rated 5 out of 5
    March 12, 2026
    Received my package at a timely manner, easy to order and great customer service! I’m a couple days in and I feel great!
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