THIS PRODUCT IS INTENDED AS A RESEARCH CHEMICAL ONLY. This designation allows the use of research chemicals strictly for in vitro testing and laboratory experimentation only. All product information available on this website is for educational purposes only. Bodily introduction of any kind into humans or animals is strictly forbidden by law. This product should on be handled by licensed, qualified professionals.

SKU: Triptorelin Category:


Physical Appearance Fine White Lyophilized Powder
Residue Sequence pGlu-His-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly-NH2
Solubility 100 ug/mL sterile diluent (distilled de-ionized water)
Purity >99%
Stability Lyophilized protein is to be stored at -20°C. It is recommended to aliquot the reconstituted (dissolved) protein into several discrete vials in order to avoid repeated freezing and thawing. Reconstituted protein can be stored at 4°C.

About Triptorelin

The Triptorelin compound is an agonist of the gonadotropin-releasing hormone (GnRH). It’s a very potent inhibitor of estrogen (in women) and testosterone (in men) and a very potent drug in treating advanced prostate cancer. During Triptorelin therapy treatment, patients experienced a decreased rate of transient serum enzyme elevations, even though scientists haven’t found a connection between the two. There are several ongoing studies investigating the various health benefits associated with Triptorelin.

What Is Triptorelin (GnRH)?

Triptorelin is an artificial analog of the gonadotropin-releasing hormone and is a potent drug in treating advanced prostate cancer. In advanced prostate cancer treatment therapy, the compound is part of the multi-faceted treatment approach that involves androgen deprivation therapy. Additionally, the compound exhibits the same traits as the luteinizing hormone-releasing hormone. Thus it’s a very potent inhibitor of estrogen and testosterone synthesis. The inhibition only occurs if the compound is administered for a prolonged time and consistently.

Triptorelin is used in the UK to suppress the estrogen and testosterone hormones in transgender patients. Apart from that, the peptide has become a viable drug in treating hormone-receptor-positive breast cancer experienced in premenopausal women.

Triptorelin Chemical Structure

  • Sequence: Pyr-His-Trp-Ser-Tyr-D-Trp-Leu-Arg-Pro-Gly
  • Molecular Formula: C64H82N18O13
  • Molecular Weight: 1311.473 g/mol
  • Synonyms: Decapeptyl, TRP (6)-LHRH, Trelstar, Triptoreline, Decapeptyl, Gonapeptyl

Triptorelin Research and Effects

Restores Secretion of Testosterone in Some Men

Triptorelin is a very versatile peptide, and its usage can substantially change its overall effects on the body. According to research studies, Triptorelin can increase testosterone levels in the early stages when used as a prolonged treatment option. The compound will only cause suppression of testosterone when the patients undergo chronic exposure. Scientists have named the process “testosterone flare,” and it’s observed in the early stages of Triptorelin treatment. Therefore the Triptorelin peptide can help boost testosterone levels among male patients, but only if it’s done at the appropriate time and correct doses.

Triptorelin Administration

Triptorelin peptide is an artificial analogue of the GnRH hormone. It can trigger the anterior pituitary gland’s secretion of the luteinizing hormone (LH) and follicle-stimulating hormone (FSH). This effect is only possible if the peptide is administered in a pulsatile manner. GnRH hormone determines the levels of LH and FSH secreted by the anterior pituitary gland. Hence the overall process is dependent on the Triptorelin dosing. If the Triptorelin compound is administered in a steady-state routine, then the peptide will suppress the secretion of the LH and FSH hormones. It will eventually cause the suppression of the testosterone and estrogen hormones. These observations show that the dosage of the Triptorelin peptide determines the effects triggered by the peptide.

Most of the research studies on Triptorelin focus on its long-term use. More reason why the peptide is being used to suppress sex hormones when used for a long time. The research focused on discovering the role of sex hormones in the progression of cancer diseases. Another critical sector focused on by the research studies is oncology. Findings from these studies have also revealed that Triptorelin can restore sexual function, testosterone levels and fertility. However, the studies are still in their early stages.

Breast Cancer

Modern breast cancer treatment therapies implement hormone suppression in treating cancer diseases sensitive to body hormone levels. Tamoxifen is the most common medication used in this cancer treatment therapy. Tamoxifen is a SERM (selective estrogen receptor modulator) currently used in treating and pretending various cancer conditions. Clinical studies on Tamoxifen showed a high decrease rate in the risk of breast cancer recurring in various patients. For postmenopausal women, the rate was 40 to 50%, while in premenopausal women, it was 30 to 50%. The compound has also been used in shrinking tumors before surgery. Despite many promising results, Tamoxifen has some side effects which researchers and doctors can’t ignore. For instance, with time, the tumors become resistant to the drug. More reason why scientists are considering Triptorelin as a viable option.

A recent phase 3 study has revealed that when Triptorelin is combined with letrozole or zoledronic acid, it’s more effective than Tamoxifen. The treatment rate recorded decreased disease-free 5- year survival rates (premenopausal women). Additional studies have revealed that including Triptorelin in the early stages of treating breast cancer increases the survival of the patients by improving disease control. The results were very positive in high-risk cancer patients who received chemotherapy. Findings from the study have sparked more interest in using Triptorelin as part of hormone therapy as a possible breast cancer treatment.

Prostate Cancer Treatment

One of the primary uses of Triptorelin is the treatment of prostate cancer. The peptide affects the progression of the disease by decreasing testosterone levels. When Triptorelin is used in the early stages of hormone-sensitive prostate cancer, it substantially lowers the 10-year mortality rate. The peptide has allowed many male patients diagnosed with prostate cancer to enjoy prolonged life. Scientists are investigating additional ways of utilizing the benefits of Triptorelin by combining it with other cancer treatment therapies.

New clinical studies have revealed that combining radiation therapy and Triptorelin can facilitate the same results as those experienced with total androgen blockade. Even though the discovery might be trivial, total androgen blockade is associated with abundant side effects which are intolerable to most male patients. Preserving efficacy while reducing side effects can significantly improve life and increase tolerance to the medication.

The Triptorelin peptide has also been linked with relieving lower urinary tract symptoms experienced in male patients with prostate cancer. Findings from studies showed that the compound reduced the weekly frequency of the symptoms from 54% to 12%, and several studies have been carried out which have confirmed the findings. There have been new studies which suggest that Triptorelin can be used in treating benign prostatic hyperplasia.


Chemotherapy is one of the most prevalent cancer treatments. However, it comes with several side effects. When chemotherapy is administered to younger cancer patients it can cause fertility loss. Researchers did a clinical trial involving female cancer patients undergoing chemotherapy to investigate the effects of Triptorelin. It was observed that the peptide preserved fertility in many patients. The same study also revealed that Triptorelin reduced the offset of early menopause in cancer patients who had undergone chemotherapy treatment.

Triptorelin has been associated with increased fertility, even in non-cancer patients. During a research study on women with adenomyosis, the administration of Triptorelin therapy improved the outcome of the disease and increased the number of spontaneous pregnancies. The same benefits of Triptorelin therapy were observed in female patients with endometriosis.


Recent research studies suggest that Triptorelin therapy can reduce pain in endometriosis. The peptide achieves the effect by reducing the number of nodules in the disease. Scientists are also debating whether this can be useful in pre-surgical treatment by reducing bleeding and preventing other complications associated with endometriosis surgery. Preliminary studies suggest that the Triptorelin peptide can enhance the results of laparoscopic surgeries for endometriosis. One of the most pronounced effects of the peptide is increasing pregnancy rates after the surgery.

Triptorelin therapy benefits women with colorectal endometriosis, decreasing pain by almost 80% and diarrhea by 60%. Even though there were impressive results, the trial only lasted three months. Scientists believe prolonging the Triptorelin therapy can achieve impressive results even though the peptide isn’t a curative medication for endometriosis. Nevertheless, it makes the diseases more manageable.

Immune Function

Research studies on rats revealed that the LHRH hormone directly modulated the thymus. The thymus plays a crucial role in controlling a central part of the immune system. One of the aging effects experienced in humans is decreasing levels of LHRH’s agonist binding sites. Eventually, this causes a 50%decrease in the size of the thymus, causing the body to experience age-related immune dysfunction. When an LHRH agonist like the Triptorelin peptide is used, the thymus experiences improved proliferation, and the age-related effects are reversed to some extent. Scientists are investigating the possibility of using Triptorelin supplementation I improving the immune system by preventing age-related effects in thymus mass.

Triptorelin is one of the most valuable peptides in the medical world, having several health benefits. Its effect on sex hormones has opened new pathways for using the peptide to control and prevent hormone-related illnesses and health conditions. The compound continues to attract more attention from scientists on various ways it can achieve hormone-based health benefits, especially in treating various terminal conditions. Triptorelin exhibited moderate side effects, excellent subcutaneous bioavailability and low oral when used in rats.

Triptorelin has proven to be a viable peptide in various treatment therapies where it has been applied. Using Triptorelin therapy to enhance immune function is expected to be one of the most significant milestones in human health.

Additional information

Weight 0.04 kg

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