FOUR PATHWAYS. ONE STACK.
The GRIT stack by Kovagen brings together GLOW, retatrutide, ipamorelin and tesamorelin, with BAC water included. Five separate products for laboratory research.
For laboratory research only. Not for human consumption.
The GRIT combination has not been evaluated in clinical trials.
One vial of each. Choose your sizes below.
✓ Qualifies for free U.S. shipping
All five items added together. Review your cart before checkout.
For laboratory research use only. Not for human or veterinary consumption.
EVERY LETTER HAS A PURPOSE
GRIT stands for GLOW, Retatrutide, Ipamorelin and Tesamorelin. The collection spans metabolic, growth-hormone and regenerative research. Explore each component and where the evidence stands.
THE RECOVERY + APPEARANCE COMPONENT
GLOW brings GHK-Cu, BPC-157 and TB-500 together in one research blend. These compounds are investigated across collagen biology, tissue repair and skin research.
Evidence varies by compound. Many proposed applications rely on preclinical or limited human research; benefits of this blend in people are not established.
Product details + certificatesTHE METABOLIC RESEARCH COMPONENT
Retatrutide is an investigational GLP-1, GIP and glucagon triple-receptor agonist being developed for obesity and metabolic disease.
Retatrutide remains investigational and is not FDA approved. Findings from clinical trials do not establish the effects of the GRIT combination.
Product details + certificatesTHE GH-SIGNALING COMPONENT
Ipamorelin is a growth-hormone secretagogue. Human pharmacology research has measured a growth-hormone response following administration.
A measured GH response does not establish improvements in sleep, recovery or body composition. Human evidence for these applications is limited.
Product details + certificatesTHE BODY-COMPOSITION COMPONENT
Tesamorelin is a growth-hormone-releasing hormone analog studied for its effects on the GH/IGF-1 axis and visceral adipose tissue.
An FDA-approved tesamorelin medicine reduces excess abdominal fat in adults with HIV-associated lipodystrophy. That approval does not extend to these research vials or general weight-loss use.
Product details + certificatesA CLOSER LOOK AT THE RESEARCH
In Lilly’s Phase 3 TRIUMPH-1 trial, the highest studied retatrutide dose produced a 28.3% average reduction in body weight at 80 weeks under the efficacy estimand.
Read Lilly’s trial reportAverage body-weight reduction
Retatrutide · TRIUMPH-1 · 80 weeks
This result is from an investigational medicine studied under clinical supervision, not the GRIT stack or Kovagen products. It is not a prediction of individual results. The safety and efficacy of combining these compounds have not been established.
THE BIGGER PICTURE
Your supplied collection covers four areas of research, with every component listed clearly and BAC water already included.
Appetite, energy balance and body weight.
Growth-hormone signaling and fat distribution.
Tissue repair and collagen biology.
Skin, connective tissue and appearance-related biology.
One vial each of GLOW Blend, retatrutide, ipamorelin and tesamorelin, plus one vial of BAC water. GLOW contains GHK-Cu, TB-500 and BPC-157. The exact vial sizes and individual prices are shown in the stack builder.
Yes. The displayed stack total includes BAC water as a separately priced item. It is added to your cart with the four peptide products in the same click.
Yes. Where the catalog offers more than one size, choose your preferred option in the stack builder. The total updates immediately. Each click adds one vial of each selected product.
Neither. GRIT is a one-time purchase of separate products, with no recurring subscription. GLOW is its own three-compound blend; the other products are supplied separately. Items remain editable in your cart.
No. The combination has not been evaluated in clinical trials. Evidence about an individual compound does not establish the safety or effectiveness of the combined stack. All Kovagen products are for laboratory research only and are not for human consumption.
Each peptide’s product page links to its published batch certificates. You can also browse the Certificates library. U.S. orders ship with FedEx 2Day after dispatch; shipping to Canada uses FedEx International. Final shipping and applicable taxes are shown at checkout.
GLOW + RETATRUTIDE + IPAMORELIN + TESAMORELIN
Four research pathways. BAC water included.
Your complete stack, in one click.
GRIT is a collection of separate research compounds. The combination itself has not been evaluated in clinical trials. Retatrutide remains investigational and is not FDA approved. Tesamorelin is FDA approved as a medicine for a specific indication unrelated to general weight-loss management; Kovagen’s research material is not that approved medicine. Evidence for BPC-157, TB-500, GHK-Cu and ipamorelin varies substantially, with many proposed applications supported primarily by preclinical or limited human research.
Kovagen products are sold for laboratory research purposes only and are not intended for human or veterinary consumption. Research areas described on this page are not promised outcomes or instructions for use.
