Oxytocin is not only correlated with the preferences of individuals to associate with members of their own group, but it is also evident during conflicts between members of different groups. During conflict, individuals receiving nasally administered oxytocin demonstrate more frequent defense-motivated responses toward in-group members than out-group members. Further, oxytocin was correlated with participant desire to protect vulnerable in-group members, despite that individual's attachment to the conflict.[64] Similarly, it has been demonstrated that when oxytocin is administered, individuals alter their subjective preferences in order to align with in-group ideals over out-group ideals.[65] These studies demonstrate that oxytocin is associated with intergroup dynamics. Further, oxytocin influences the responses of individuals in a particular group to those of another group. The in-group bias is evident in smaller groups; however, it can also be extended to groups as large as one's entire country leading toward a tendency of strong national zeal. A study done in the Netherlands showed that oxytocin increased the in-group favoritism of their nation while decreasing acceptance of members of other ethnicities and foreigners.[66] People also show more affection for their country's flag while remaining indifferent to other cultural objects when exposed to oxytocin.[67] It has thus been hypothesized that this hormone may be a factor in xenophobic tendencies secondary to this effect. Thus, oxytocin appears to affect individuals at an international level where the in-group becomes a specific "home" country and the out-group grows to include all other countries.
Research in the early 1960s showed that in rats, administration of α-MSH caused sexual arousal, and work on this continued in many labs up through the 1980s, when scientists at University of Arizona began attempting to develop α-MSH and analogs as potential sunless tanning agents, and synthesized and tested several analogs, including melanotan-I and melanotan II.[6][9]
Total RNA was extracted from cells using Trizol (Invitrogen, Carlsbad, CA, USA) according to the manufacturer’s instructions. Reverse-transcription (RT)-PCR was performed using oligo deoxythymidine primer (Roche Diagnostics, Mannheim, Germany) in 20 μl volumes at 42°C for 60 min. The RT-PCR reaction was done with 1 μg of total RNA, 1 μl of 20 μM oligo dT primer, and 18 μl of reaction mixture by AccuPower RT/PCR PreMix (Bioneer, Daejeon, Korea). Then, PCR was performed in a 20 μl total mixture volume for 25 cycles at 95°C for 1 min, 55°C for 1 min, and 72°C for 1 min. Primer sequences are detailed in Table 1. PCR products were subjected to electrophoresis on 1.5% agarose gels and visualized with ethidium bromide.
Oxytocin is a hormone that also acts as a neurotransmitter in the brain. Some popular media have incorrectly labeled it the “love hormone,” because it is associated with good feelings and emotions. But its role in the body is much more complex than that. It is not a bliss or hug hormone, but it does appear to be connected to human emotions and the regulation of childbirth and breast-feeding.
Jump up ^ Ballweber E, Hannappel E, Huff T, Stephan H, Haener M, Taschner N, Stoffler D, Aebi U, Mannherz HG (Jan 2002). "Polymerisation of chemically cross-linked actin:thymosin beta(4) complex to filamentous actin: alteration in helical parameters and visualisation of thymosin beta(4) binding on F-actin". Journal of Molecular Biology. 315 (4): 613–25. doi:10.1006/jmbi.2001.5281. PMID 11812134.

Oxytocin has been of keen interest to neuroscientists since the 1970s, when studies started to show that it could drive maternal behaviour and social attachment in various species. Its involvement in a range of social behaviours2, including monogamy in voles, mother–infant bonding in sheep, and even trust between humans, has earned it a reputation as the 'hug hormone'. “People just concluded it was a bonding molecule, a cuddling hormone, and that's the pervasive view in the popular press,” says Larry Young, a neuroscientist at Emory University in Atlanta, Georgia, who has been studying the molecule since the 1990s.


The neurotransmitter serotonin is synthesized from the amino acid tryptophan through 5-HTP. In which tryptophan gets converted into 5-HTP via the enzyme tryptophan hydroxylase and 5-HTP gets converted into serotonin via the enzyme L-amino acid decarboxylase.[4] Serotonin is later degraded into 5-hydroxyindoleacetic acid (5-HIAA) by monoamine oxidase.
For those deficient in tryptophan, supplemental tryptophan and 5-HTP could be somewhat effective,[17] although a meta-analysis found barely statistically significant results (Odds Ratio of 1.3-13.2) from a statistically subpar collection of studies, and based on the inclusion criteria it set it had to expand its analysis to both 5-HTP and Tryptophan to get two studies to assess.[23]
5-HTP increases a chemical in the brain. This chemical is called serotonin. Some medications used for depression also increase serotonin. Taking 5-HTP with these medications used for depression might cause there to be too much serotonin. This could cause serious side effects including heart problems, shivering, and anxiety.

Some of these medications used for depression include phenelzine (Nardil), tranylcypromine (Parnate), and others.

“Further analysis by gender revealed that females in the 5-HTP group had a significantly lower panic rate and intensity of cognitive symptoms whereas, in males, the effect of 5-HTP was limited to lowering the intensity of somatic panic symptoms. Thus, an increased availability of 5-HT may have a gender-dependent protective effect in CCK-4-induced panic.”


Injection is the most effective way to administrate the peptide and results are seen the fastest and best. The nasal spray method is effective up to 30 – 40% because the nasal passages have poor absorption rate, you have to apply the nasal spray at least two to three times more than the injection. The injectable product of the Melanotan is very superior as compared to the nasal version. The nasal versions generally take four to five weeks for displaying the results appose to 10 days with the injection.
A handful of large-scale clinical trials are now getting under way to test oxytocin and oxytocin-based therapies for autism spectrum disorder, and to work out who could benefit. Linmarie Sikich, a child psychiatrist at the University of North Carolina is heading the largest of these trials. Sikich plans to recruit 300 people with autism spectrum disorder, ranging in age from 3 to 17, and give them 6 months of either oxytocin or a placebo, followed by 6 months in which everyone will receive oxytocin.
Side effects:  Side effects for Melanotan 2 include nausea, appetite loss, facial flushing and increased libido. Side effects are generally mild and tend to diminish over time. Some research suggests nausea can be reduced by injecting MT-II after dinner or before bed. Athletes and bodybuilders have injected peptides like Melanotan 2 intermittently to prolong their tan since a tan aided by Melanotan can last 2-3 times as long as a normal tan. Like other peptides, Melanotan is a fragile molecule, therefore Melanotan nasal sprays, pre-mixed peptides, pills, oral and loose powder are not often legitimate for research effectiveness.

Oxytocin (Oxt; /ˌɒksɪˈtoʊsɪn/) is a peptide hormone and neuropeptide. Oxytocin is normally produced by the paraventricular nucleus of the hypothalamus and released by the posterior pituitary.[3] It plays a role in social bonding, sexual reproduction, and during and after childbirth.[4] Oxytocin is released into the bloodstream as a hormone in response to stretching of the cervix and uterus during labor and with stimulation of the nipples from breastfeeding.[5] This helps with birth, bonding with the baby, and milk production.[5][6] Oxytocin was discovered by Henry Dale in 1906.[7] Its molecular structure was determined in 1952.[8] Oxytocin is also used as a medication to facilitate childbirth.[9][10][11]
Although Tβ4 contains only 43 amino acids, it appears to have a wide range of regenerative activities and specific sites on the molecule have been shown to mediate these effects (Goldstein & Kleinman, 2015; Sosne, Qiu, Goldstein, & Wheater, 2010). Both chemically synthesized and recombinant forms have shown efficacy for dermal healing in preclinical models and in human patients (Ehrlich & Hazard, 2012; Kim & Kwon, 2014, 2015; Malinda et al., 1999; Philp, Badamchian, et al., 2003; Philp & Kleinman, 2010; Philp et al., 2006; Ti et al., 2015; Treadwell et al., 2012). A dimeric form has been found to accelerate the rate of dermal healing in an animal model more rapidly than that of the parent molecule (Xu et al., 2013). Tβ4 has also shown repair and regenerative activity in a number of other injury models, such as traumatic brain injury, spinal cord injury, stroke, a model of multiple sclerosis, ischemic limbs, and cardiac damage due to ischemia (Bock-Marquette, Saxena, White, Dimaio, & Srivastava, 2004; Cheng, Kuang, Zhang, Ju, & Wang, 2014; Dube, Bollini, Smart, & Riley, 2012; Morris, Chopp, Zhang, Lu, & Zhang, 2010; Morris et al., 2014; Philp & Kleinman, 2010; Postrach et al., 2014; Smart et al., 2007; Sopko et al., 2011; Ti et al., 2015, Wang et al., 2012; Wei, Kim, Li, Wu, & Gupta, 2014; Xiong, Mahmood, Meng, et al., 2011; Zhang, Zhang, Morris, et al., 2009; Zuo et al., 2013). The processes and pathways for Tβ4-mediated repair are similar in these various tissues and support the observed promotion of dermal healing.
Stimulation of uterine smooth muscle contraction at birth: At the end of gestation, the uterus must contract vigorously and for a prolonged period of time in order to deliver the fetus. During the later stages of gestation, there is an increase in abundance of oxytocin receptors on uterine smooth muscle cells, which is associated with increased "irritability" of the uterus (and sometimes the mother as well). Oxytocin is released during labor when the fetus stimulates the cervix and vagina, and it enhances contraction of uterine smooth muscle to facilitate parturition or birth.
While all of the effects described above certainly occur in response to oxytocin, doubt has recently been cast on its necessity in parturition and maternal behavior. Mice that are unable to secrete oxytocin due to targeted disruptions of the oxytocin gene will mate, deliver their pups without apparent difficulty and display normal maternal behavior. However, they do show deficits in milk ejection and have subtle derangements in social behavior. It may be best to view oxytocin as a major facilitator of parturition and maternal behavior rather than a necessary component of these processes.
“The study was double-blinded and was for two consecutive 6-wk periods. No diet was prescribed during the first period, a 5040-kJ/d diet was recommended for the second. Significant weight loss was observed in 5-HTP-treated patients during both periods. A reduction in carbohydrate intake and a consistent presence of early satiety were also found. These findings together with the good tolerance observed suggest that 5-HTP may be safely used to treat obesity.”
For depression: Most commonly, 150-800 mg daily is taken for 2-6 weeks. These doses are sometimes divided up and administered as 50 mg to 100 mg three times a day. Sometimes the dose starts out low and steadily increases every 1-2 weeks until a target dose is reached. Less commonly, higher doses are used. In one study, the dose is steadily increased up to 3 grams per day.
To prevent adverse effects, always consult your physician and pharmacist before taking any drug or supplement. Inform your doctor and pharmacist about all drugs you take, whether they are prescription, non-prescription, vitamins, supplements, or herbs. Be sure to read and understand the Drug Facts section of the product label before taking any medication, and never take more than what is specified by your doctor. Dietary supplements are drugs, so be sure to keep them out of sight and reach of children and pets.
“Ultimately you’re body is going to down-regulate the enzymes needed to convert the tyrosine/l-phenylalanine into dopamine and norepinephrine; this also counts for 5 -htp being converted into serotonin. As far as I’m aware when simply supplementing amino acids to improve neurotransmitter prevalence in the brain, tolerance will build very rapidly within a one week to two week period (from personal experience). Not saying it’s not viable to help out with mood when used sparingly, just saying there’s most likely better ways for continued treatment.”
Bone loss associated with inflammatory diseases, such as rheumatoid arthritis, periodontal disease, and osteoporosis, and elevated osteoclast activity leads to bone destruction [1]. The most common osteolytic disease, periodontitis, is a multi-factorial irreversible and cumulative condition, initiated and propagated by bacteria and host factors [2]. Destruction of peridontal tissue is mediated via the expression of various tissue-destructive enzymes or inflammatory mediators such as interleukins-1 (IL-1), IL-6 and IL-8, tumor necrosis factor- α (TNF- α), nitric oxide (NO), and prostaglandin E2 (PGE2) [2]. Receptor activator of nuclear factor-kappa B (NF-κB) ligand (RANKL) and osteoprotegerin (OPG) are critical for homeostatic control of osteoclast activity, suggesting that they have vital roles in the progression of bone loss in periodontitis [3, 4]. Therefore, resolution of inflammation and blocking osteoclast differentiation might be a potential therapeutic approach for the prevention and treatment of osteolytic inflammatory disease, such as periodontitis [5].

Animal studies have found high levels of both stress and oxytocin in voles that were separated from other voles. However, when the voles were given doses of oxytocin, their levels of anxiety, cardiac stress, and depression fell, suggesting that stress increases internal production of the hormone, while externally supplied doses can help reduce stress.


^ Jump up to: a b Hurlemann R, Patin A, Onur OA, Cohen MX, Baumgartner T, Metzler S, Dziobek I, Gallinat J, Wagner M, Maier W, Kendrick KM (April 2010). "Oxytocin enhances amygdala-dependent, socially reinforced learning and emotional empathy in humans". The Journal of Neuroscience. 30 (14): 4999–5007. doi:10.1523/JNEUROSCI.5538-09.2010. PMID 20371820.
Advice & Tips: 5-HTP is a serotonin precursor. Serotonin is well-known as a hormone that affects one's mood in a positive way, but it is probably less-well known that it increases intestinal motility. It has worked magic for my symptoms. I am completely regular now, and the majority of my days are good days, whereas before I began taking it the majority of my days were bad days that began with symptoms of constipation and intestinal pain or discomfort. For me, at least, this is not a prescription. I began taking 5-HTP after my fiancee'--who had already been taking it to help her mood and, primarily, her difficulty sleeping through the night--learned it can be helpful when taken for gastrointestinal motility, and I began taking it myself shortly after that (and felt its effects almost immediately). Although not entirely unexpected, my slightly enhanced good moods are a nice side benefit of taking the supplement. I do get some very mild undesirable side effects, especially during mid-day when I take twice my morning and evening dose of 100 mg. Sometimes my face feels hot and flushes fairly noticeably--and this may be intensified with eating--but those symptoms subside within probably 30 minutes or less.

Autism. A 1998 study found significantly lower levels of oxytocin in blood plasma of autistic children.[14] A 2003 study found a decrease in autism spectrum repetitive behaviors when oxytocin was administered intravenously.[15] A 2007 study reported that oxytocin helped autistic adults retain the ability to evaluate the emotional significance of speech intonation.[16]

Because of its role in creating serotonin, 5-HTP is indirectly involved in producing melatonin, a hormone that is critical for sleep. Melatonin helps the body’s bio clock stay in sync, and regulates daily sleep-wake cycles. A strong bio clock and regular sleep-wake routines are the cornerstone of healthy, restful, rejuvenating sleep. Research suggests that 5-HTP may help shorten the time it takes to fall asleep and increase sleep amounts.
My wife has suffered from debilitating leg cramps for years, usually nocturnal. We have spent much money and time trying to find a cure, including every type of magnesium supplement we could find. Nothing has worked. We’ve also tried MSM and DMSO. Sometimes the cramps are in her calves, sometimes her thighs, sometimes her back and even her toes. Sometimes several muscles cramp at once. She has a high tolerance for pain, but these cramps leave her sobbing. I have purchased TB-500 and received it today. Does your research offer any hope that this could help eliminate her muscle spasms?
Wow I wonder if it will help those of us with Ehlers Danlos Syndrome – a collagen disorder that causes ligament laxity and makes those with it prone to easy subluxations and early onset arthritis. I have so many injuries from my daily life due to this disorder. I know this won’t fix my faulty collagen since that is encoded in my genes but perhaps it would help with the symptoms – a bunch of torn ligaments and worn out joints. Thanks for sharing!
There is also a positive feedback involved in the milk-ejection reflex. When a baby sucks at the breast of its mother, the stimulation leads to oxytocin secretion into the blood, which then causes milk to be let down into the breast. Oxytocin is also released into the brain to help stimulate further oxytocin secretion. These processes are self-limiting; production of the hormone is stopped after the baby is delivered or when the baby stops feeding.
"Just that it is completely false that these particular substances and the program wasn't discussed through the highest levels of the club. We have been very firm in terms of our belief in what ASADA, the AFL and Essendon know and for them to remotely suggest that no one knew, to be really blunt, is completely wrong and in some ways offending the process we set up at Essendon Football Club. We were very strict in the protocols we set up."
Ok Ben. Thanks. Started the TB 500 for my elbows. Got the 5mg of TB 500 and reconstituted it with 3 cc/ml. of water (3 syringes full) Just about filled the file. Now based on injecting just under .1 cc/ml or just under 10 (8) units for a dose of around 250. How long did that vial last you? Seems like there is a lot left and the amount injected is small. Is my dose and math right?
The tb-500 has a systematic effect regardless of where it is injected. Some believe that thymosin beta-4 should be injected as close to the injury as possible however there is no evidence to show this would be superior. It can be injected subcutaneously (stomach fat) or intramuscularly (shoulders, thighs, buttocks). Injections should be given in different sites (rotated) each time. Depending on the spot, you can either feel nothing or you can feel slight pain - you will learn your favorite spots in time.
I have taken BPC-157 in conjunction with TB-500 after reading about someone’s experience. I used the BPC-157 at an injury/inflammation site in my shoulder. I have a pain that came out of nowhere and has prevented me from doing bench presses mainly, and shoulder presses. I also got pain when I did external rotation of my shoulder. The BPC-157 gave me good results at 250 mcg twice daily intramuscularly. The pain is not completely gone but it has definitely lessened in severity. I don’t get any pain with a reverse grip press so I have been doing those with light weight and I can now do shoulder presses. BPC-157 really blew me away on how quickly it improved my gut status. For me it only took 4 days of orally dosing with 250 mcg. So I did both the oral and intramuscular daily for a month. Two weeks into the BPC-157 I ordered TB-500 and did 1mg per week subq in my thigh because I didn’t know about injecting intramuscularly at the injury site.

Jump up ^ Wei D, Lee D, Cox CD, Karsten CA, Peñagarikano O, Geschwind DH, Gall CM, Piomelli D (November 2015). "Endocannabinoid signaling mediates oxytocin-driven social reward". Proceedings of the National Academy of Sciences of the United States of America. 112 (45): 14084–9. Bibcode:2015PNAS..11214084W. doi:10.1073/pnas.1509795112. PMC 4653148. PMID 26504214.
Double immunofluorescent staining for BrdU (red, A) and NeuN (green, B) to identify newborn neurons (yellow after merge, C) in the dentate gyrus of hippocampus from rats examined 35 days after TBI. Micrographs (D) show location of DiI injection in the CA3 region (indicated by white asterisk). In the CA3 region, axons projected from granule neurons in the dentate gyrus will take up injected DiI to their cell bodies. Co-localization (merge, H) of BrdU-positive nuclei (green, F) within retrogradely DiI labeled (red, E) granule cells were examined at 35 days after TBI. Scale bar = 25 μm (C, H). Scale bar = 50 μm (D).
TB-500 has been used extensively for race horses to prevent adhesions from forming, although it is not a prescription veterinary drug. It’s an injectable peptide with limited human use. Mostly, it’s limited to humans who like to experiment, although reports of human use of thymosin dates back as far as 1974 – when a young girl became the first person to receive injections of thymosin because she was diagnosed without a functioning thymus gland.
Some differences in cardiac anatomy exist between mammals and teleosts. The zebrafish ventricle has a thin wall of compact muscle surrounding a much larger compartment of myofibers organized into elaborate trabeculae. It is intriguing that this structure is very similar to that of the embryonic mammalian ventricle prior to its septation and fusion of trabeculer myofibers into a thick, vascularized wall (Sedmera et al., 2000). That the mammalian heart has a more differentiated, contractile anatomy is apparent not only in gross cardiac structure, but also in cellular features. Teleost cardiomyocytes are 2–10 times smaller, mononucleated, have a greatly-reduced sarcoplasmic reticulum and lack the T-tubule system found in skeletal muscle and mammalian cardiac muscle (Farrell, 1992). One might speculate that the teleost heart is better designed for growth and regeneration, while the mammalian heart is better designed for sheer contractile force. Nevertheless, none of the mentioned differences between lower and higher vertebrate hearts preclude the idea that the mammalian heart could be stimulated to regenerate, especially if that regeneration is due to mobilization of a progenitor cell population.

I am not sure if my original question posted…I was wondering if I could use TB-500 to regenerate thyroid tissue? My endocrinologist said that my Hashimoto’s Thyroiditis has almost completely destroyed my thyroid. If yes, then where do I inject?? Additionally, I was wonder if the BPC-157 would have any benefits on thyroid as I plan to take orally for leaky gut/digestive issues.
The reason for the difference is the density of oxytocin receptors in the brain. Life pair bonders, like prairie voles or, indeed, ourselves, have a high density of receptors in the reward centre of the brain. Non-pair bonders, like meadow voles, certainly enjoy sex, but their lower density of receptors means it doesn't matter so much who the partner is. So it's not the oxytocin itself making sex enjoyable. What it's doing is influencing our mating behaviour.

“This is a very ancient molecule,” says Sue Carter, a neuroscientist at Indiana University in Bloomington, whose lab pioneered many of the early studies of oxytocin in voles. “It has been used and reused for many purposes across the evolution of modern animals, and almost everybody who's tried to look at an effect of oxytocin on anything like social behaviour has found something.”
Jump up ^ Hicks C, Ramos L, Reekie T, Misagh GH, Narlawar R, Kassiou M, McGregor IS (June 2014). "Body temperature and cardiac changes induced by peripherally administered oxytocin, vasopressin and the non-peptide oxytocin receptor agonist WAY 267,464: a biotelemetry study in rats". British Journal of Pharmacology. 171 (11): 2868–87. doi:10.1111/bph.12613. PMC 4243861. PMID 24641248.
The first dosage should be fairly small, as little as 0.3mg in order to gauge the reaction of the user's body. With increased dose first time user will deel warming ensation, flush in face and mild nausea, if these side effects occure dosage can be taken before going to bed, so any unpleasant effects take place while user is asleep. With regular use these side effects disapper and product can be taken at any tome of the day.

5-HTP has been linked in very rare instances to a condition known as EMS, or eosinophilia-myalgia syndrome, which combines extreme muscle tenderness with abnormalities in the blood. A contaminant that was found in some tryptophan supplements in the late 1980s, and was linked to a small number of EMS cases, was also found in some 5-HTP supplements.  It’s important to talk with your doctor before you begin taking 5-HTP or any other supplement, and to make sure you’re getting your supplements from a reliable provider.  

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