Autism. A 1998 study found significantly lower levels of oxytocin in blood plasma of autistic children.7 A 2003 study found a decrease in autism spectrum repetitive behaviors when oxytocin was administered intravenously.8 A 2007 study reported that oxytocin helped autistic adults retain the ability to evaluate the emotional significance of speech intonation.9
Milk ejection reflex/Letdown reflex: in lactating (breastfeeding) mothers, oxytocin acts at the mammary glands, causing milk to be 'let down' into subareolar sinuses, from where it can be excreted via the nipple.[47] Suckling by the infant at the nipple is relayed by spinal nerves to the hypothalamus. The stimulation causes neurons that make oxytocin to fire action potentials in intermittent bursts; these bursts result in the secretion of pulses of oxytocin from the neurosecretory nerve terminals of the pituitary gland.
There is a possibility Melanotan may some day present a viable solution to achieving a “healthy tan” in line with current western beauty ideals. But it also creates new forms of risk concerning needle safety, unsettling patient-practitioner relationships via unregulated use, and the subversion of public health messages that groups such as Cancer Council Australia have worked for decades to promote.
Johansson, A., Westberg, L., Sandnabba, K., Jern, P., Salo, B., & Santtila, P. (2012). Associations between oxytocin receptor gene (OXTR) polymorphisms and self-reported aggressive behavior and anger: Interactions with alcohol consumption [Abstract]. Psychoneuroendocrinology 37(9), 1546-56. Retrieved from
“Shortly after taking the supplement, my vision changes. Colours appear more vivid, I feel lightheaded and generally at ease. My mind calms down and the racing thoughts stop. Today is the 3rd day and I’ve noticed the intensity has gone up and it almost feels like I’m tripping on something. The sky looked absolutely amazing today, colours are so intense but I feel a kind of ungrounded and odd, but still pretty mellow with no anxious thoughts or anything like that which is good.”

Toxicity effects of melanotan II from therapeutic and overdose exposures include renal dysfunction, rhabdomyolysis, sympathomimetic overdrive, change in size and pigmentation of pre-existing moles, rapid increase in the number of new moles, associated with causing melanomas, posterior reversible encephalopathy syndrome, refractory priapism, stretching and yawning syndrome, shortness of breath, chest pain, abdominal cramping and pain, dizziness and lethargy.
20 patients (nine from the 5-HTP group and 11 from the Placebo group) completed the study. Brain tryptophan availability in diabetic patients was significantly reduced when compared to a group of healthy controls. Patients receiving 5-HTP significantly decreased their daily energy intake, by reducing carbohydrate and fat intake, and reduced their body weight.”
The logic behind this trend is that creating tanned skin (by increasing melanin) with minimal to no sun exposure could protect individuals from skin damage, and even potentially lower melanoma risk. More melanin means more protection from UV radiation, and therefore a healthier (and conveniently, deeper) complexion. In this sense, there is perhaps a kernel of truth to the idea of the “healthy glow”.
“The study is kind of a high-water mark for the field, putting different levels all together: a robust behaviour, a brain region, and a cellular basis for it,” says Richard Tsien, a neuroscientist also at Langone. Tsien has been studying the action of oxytocin on neuronal circuits in detail, by examining slices of the hippocampus, a region involved in learning and memory. In a 2013 study6 of rats, Tsien's team found that oxytocin selectively acts on a type of cell called an inhibitory interneuron in a way that quiets background chatter within the neuronal circuit. “Oxytocin improved signal transmission, almost doubling the ability of information to flow through the system,” Tsien says. In effect, it is producing more signal and less noise.
5-HTP has been investigated for its role in hot flashes as Selective Serotonin Reuptake Inhibitors (SSRIs) have been noted to reduce the occurrence of hot flashes and menopausal symptoms.[30][31] In a study in menopausal females given 150mg 5-HTP daily (50mg taken thrice a day) for a period of one week failed to quantitivatively reduce the occurrance of hot flashes[32] as assessed by a Flashmark Pro recording device.[33]

Loading is not absolutely necessary, it is only done to achieve results faster. Loading means taking doses more frequently to build up initial tan faster thus getting in tan maintenance mode sooner. Typical loading is done by taking 0.5mg once a day until desired skin tone is achieved. Loading dose can slightly vary from person to person, depending on skin type, bodyweight and other factors, but 0.5mg is pretty standard for most
Jump up ^ Grottesi A, Sette M, Palamara T, Rotilio G, Garaci E, Paci M (1998). "The conformation of peptide thymosin alpha 1 in solution and in a membrane-like environment by circular dichroism and NMR spectroscopy. A possible model for its interaction with the lymphocyte membrane". Peptides. 19 (10): 1731–8. doi:10.1016/S0196-9781(98)00132-6. PMID 9880079.
A critical step in wound healing is angiogenesis. New vessels are needed to supply nutrients and oxygen to the cells involved in repair, to remove toxic materials and debris of dead cells and generate optimal conditions for new tissue formation. Another important step is the directional migration of cells into the injured area, joining up to repair the wound. This requires an attractant that will direct the cells to the wound and propel them to the site. These critical steps in wound healing are regulated by beta 4, as seen in the following experiments.
Horvath, G. A., Stockler-Ipsiroglu, S. G., Salvarinova-Zivkovic, R., Lillquist, Y. P., Connolly, M., Hyland, K., Blau, N., Rupar, T., and Waters, P. J. Autosomal recessive GTP cyclohydrolase I deficiency without hyperphenylalaninemia: evidence of a phenotypic continuum between dominant and recessive forms. Mol.Genet.Metab 2008;94:127-131. View abstract.
I am not a doctor and nothing I say should be taken as medical advice. If it were me, I would try TB500, and to inject simply get as close to the injury site as possible. If you want to go into detail feel free to book a consult at
About ten years ago, psychology studies started to show that single doses of oxytocin, delivered through an intranasal spray, could promote various aspects of social behaviour in healthy adults. People who inhaled oxytocin before playing an investment game were more willing to entrust their money to a stranger than were placebo-treated players10. A dose of the hormone also increased the amount of time that people spent gazing at the eye region of faces11, and improved their ability to infer the emotional state of others from subtle expressions12.
To investigate whether the newborn neurons generated in the DG are capable of projecting their axons into the CA3 region of the hippocampus after TBI, we stereotactically injected a fluorescent tracer, 1,1″-dioleyl-3,3,3″,3″-tetramethylindocarbocyanine methanesulfonate (Dil, Delta 9-DiI; AnaSpec, San Jose, CA) into the ipsilateral CA3 region (stereotaxic coordinates AP, -3.6 mm bregma, ML, 3.6 mm, DV, 3.0 mm, Paxinos and Watson, 1994) at day 28 after TBI. BrdU (100mg/kg, ip) was injected i.p. daily starting at day 1 after TBI for 10 days to label newly generated cells. One week after DiI injection (i.e., 35 days after TBI), the animals were anesthetized and sacrificed. Their brains were fixed in 4% paraformaldehyde. The brain was cut into seven equally spaced 2-mm coronal blocks using a rat brain matrix. The brain blocks containing the hippocampus were processed for vibratome sections (100 μm) followed by BrdU staining. BrdU and DiI labeling in the hippocampus on brain sections was analyzed with a Bio-Rad MRC 1024 (argon and krypton) laser-scanning confocal imaging system mounted onto a Zeiss microscope (Bio-Rad, Cambridge, MA). Co-localization of BrdU-positive nuclei within retrogradely DiI-labeled granule cells was found, indicating that newborn granule neurons extend axons into the CA3 region that are capable of retrogradely transporting DiI from the CA3 to their cell bodies within the DG after TBI (Fig.2). This finding suggests that newborn granule neurons may be incorporated into functional hippocampal circuitry after TBI.
“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.”
I was kind of scared because I ran across some threads that said TB500 leads to cancer or promotion of benign tumors…most of these were at least 4-5 years old though and it seems there are countless logs online all with good experiences. Nonetheless I was still worried so I did some more research and came across a pharmaceutical company in the US doing clinical trials for thymosin beta 4 to help with dry eye syndrome. I have attached some links. This makes me feel much safer but if you have any more insight I’d really appreciate it.
Oral 5-HTP results in an increase in urinary 5-HIAA, a serotonin metabolite, indicating that 5-HTP is peripherally metabolized to serotonin, which is then metabolized. This might cause a false positive test in tests looking for carcinoid syndrome.[28][29] Due to the conversion of 5-HTP into serotonin by the liver, there could be a risk of heart valve disease from serotonin's effect on the heart, as based on preclinical findings.[30][31] However, 5-HTP has not been associated with cardiac toxicity in humans.[22][32][33][34]