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”.

You must be over 18 years of age to order or purchase from our website. You may not purchase this peptide for anyone who is under 18 years of age.Products are not drugs and have not been approved by the FDA to prevent, treat or cure any medical condition, ailment or disease. The purchaser is fully aware of the health hazards associated with these products and agrees that they are experienced in their handling.


Much of human behavior is influenced by hormones. There’s cortisol, involved in our stress response and energy balance. Testosterone, a male sex hormone, tends to make men more competitive. Oxytocin has various social and physiological functions in the brain and the body, but is sometimes referred to as the “love hormone” due to its role in social bonding. These are all simplifications, but hormones do underlie many aspects of what we do and what we feel.


Wonderful column. My expertise is the psychology of risk perception, and I have done some reading on oxytocin and trust (not the kind you want to boost in a bar with Liquid Trust – you can the stuff with pheromones – to boost THAT kind of trust). It turns out there is a high concentration of oxytocin receptors on the amygdala, the area of the brain where fear starts. As oxytocin levels go up, the ability of the amygdala to be warry and more mistrustful goes down. I describe this in Ch. 3 of How Risky Is It, Really? Why Our Fears Don’t Always Match the Facts. A few graphs of which are below. I wonder whether the influence of oxytocin on the amygdala might be connected with the finding of the study you write about.
The oxytocin peptide is synthesized as an inactive precursor protein from the OXT gene.[18][19][20] This precursor protein also includes the oxytocin carrier protein neurophysin I.[21] The inactive precursor protein is progressively hydrolyzed into smaller fragments (one of which is neurophysin I) via a series of enzymes. The last hydrolysis that releases the active oxytocin nonapeptide is catalyzed by peptidylglycine alpha-amidating monooxygenase (PAM).[22]
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.
I broke my neck this year at C6-C7 facets. Started taking TB-500 immediately following the accident. I don’t sit still well and was back in the gym almost immediately, simply to not go stir crazy and pump the blood anyway I could. 8 weeks later I was hitting bodyweight overhead squats for reps with the jerk, 0 pain and completely stable spine. I’m in my late 30s. I eat well, sleep well, and drink a lot of water. I doubt I would have been as well off, had I not taken the TB.
Other supplements are available which have appetite supressant and mood enhancing effects similar to 5-HTP. These type of ingredients are often included, in optimal pre-formulated dosages in fat burners. Phenylethylamine is also another ingredient with mood enhancing potential that is often found in fat burners in place of 5-HTP. 5-HTP can be found in some sleep supplements, though in Australia they are replaced by ingredients such as GABA and phenibut.
I found this to be an excellent supplement for myself, which overcomes the rate limiting step when the body converts tryptophan to 5-HTP. I am sleeping much better and handling life's normal stresses better. If you haven't already, become familiar with how/why the body converts L-Tryptophan > 5-HTP > Serotonin > Melatonin. Very interesting! Thank you Bulk Nutrients for making this available.
Recent reports have stated that inhibitors of Wnt signaling have emerged as promising strategies for bone disease and inflammatory diseases [26, 55]. Wnt5a, one of the most common Wnt molecules that activate the non-canoical pathway, binds to Fzd and its co-receptor, Ror2 [56]. In synoviocytes from rheumatoid arthritis patients, the expressions of Wnt5a and Frizzled5 (Fzd5) were significantly enhanced [25] and their blockades inhibited synoviocyte activation [55]. Recently, Wnt5a was highly expressed in synovial tissues in a mouse model of rheumatoid arthritis where inhibition of Wnt5a-Ror2 signaling suppressed bone loss [57]. Our data demonstrated that ROS up-regulated Wnt5a and its cell surface receptors, Frizzled and Ror2, as well as mRNA and protein expressions in time- and dose-dependent manners in PDLCs.
About three months after quitting, I did have a major relapse, which was falling back into old habits for about two weeks. And the whole time I knew what was happening, I knew how dangerous it was, but I couldn't stop myself. I felt like I couldn't connect to anyone without drinking. I couldn't talk to my friends, I couldn't be open and honest with anybody in my life without already having had a few drinks. It was a really disconnected, really unpleasant feeling. That's what I couldn't sit with and I couldn't cope with that feeling, so I went back to drinking.
Why have zebrafish retained the ability to regenerate? It is thought that the capacity for organ regeneration is an ancestral condition that has occasionally been diminished in the course of vertebrate evolution (Scadding, 1977; Goss, 1992; Wagner and Misof, 1992). Thus, most biologists suspect that the molecular machinery to optimize regeneration is present but poorly-utilized in mammals. By this line of reasoning, zebrafish heart regeneration may represent an optimal utilization of universal cardiac machinery.
I had tennis elbow on both arms for over 3 years now. Had one surgery on the R, countless PRPs, and a stem cell treatment on both but still to no avail. Pain on the L never eased up and I just had my 3rd PRP booster injections yesterday after having my stem cells 2 months ago. So can you tell me if BPC 157 or TB 500 better suits my situation. Many thanks!
TB-500 is a synthetic fraction of the protein thymosin beta-4, which is present in virtually all human and animal cells. The main purpose of this peptide is to promote healing. It also promotes creation of new blood and muscle cells. The healing effects of TB-500 have been observed in tendons, ligaments, muscle, skin, heart, and the eyes. Thymosin beta-4 is naturally produced in higher concentration where tissue has been damaged. This peptide is also a very potent anti-inflamatory agent.

In addition to its intracellular role as the major actin-sequestering molecule in cells of many multicellular animals, thymosin β4 shows a remarkably diverse range of effects when present in the fluid surrounding animal tissue cells. Taken together, these effects suggest that thymosin has a general role in tissue regeneration. This has suggested a variety of possible therapeutic applications, and several have now been extended to animal models and human clinical trials.


The CCI model we used causes cortical tissue loss. Traditionally, the target for neuroprotective treatment of TBI is to reduce the lesion volume.39,40 A major limitation of neuroprotection strategies is the short time window between injury and treatment. In the vast majority of preclinical TBI studies, the treatment compounds provide neuroprotection only when administered early (usually several hours after brain injury).11 The administration of a compound early in the clinical setting is not practical.41 The neuroprotective effects demonstrated in rodents may diminish if the treatment compounds are given in the clinical setting beyond the short neuroprotective window. We are able to stimulate recovery of neurological function without altering the lesion volume, which has also been demonstrated in our experimental studies of stroke,19,42,43 and is in essence, enhancement of neurorecovery.19 The extended 24-hour window for treatment which improves neurological recovery, without altering CCI cortical volume, is a major benefit of the neurorestorative therapy. Recently, we evaluated the efficacy of delayed Tβ4 treatment on spatial learning and sensorimotor functional recovery in rats after TBI induced by CCI.34 Briefly, TBI rats received Tβ4 at a dose of 6 mg/kg or a vehicle (saline) administered i.p. starting at 24 hours after injury and then every third day for 2 weeks. The dose of Tβ4 was selected based on our previous studies in animal models of stroke and EAE.25,27 Tβ4 did not alter lesion volume (14.2 ± 3.9% for saline treatment vs. 15.7 ± 3.6% for Tβ4 treatment). TBI caused neuronal cell loss in the ipsilateral CA3 and DG examined 35 days after injury compared to sham controls. Tβ4 treatment initiated 24 hours post injury significantly reduced cell loss in these two regions compared to saline controls. Tβ4-treated TBI rats showed significant improvement in spatial learning (MWM test) and sensorimotor (mNSS test) functional recovery compared to the saline-treated TBI rats.34
Supplementation of 5-HTP has been shown to be more effective than tryptophan supplementation alone. This additional benefit of 5-HTP supplementation arises because 5-HTP bypasses the cell's L-tryptophan's own self-regulation on the IDO enzyme, in which it upregulates the activity of IDO (discussed in next section) to maintain body homeostasis of tryptophan[6] and it bypasses the tryptophan hydroxylase enzyme, which is the rate limiting step in serotonin biosynthesis.[7]

Fortunately for the players, despite the appending doom touted by the media, the current research suggests Tβ4 is safe. 23 non-clinical toxicology studies have been performed “that demonstrate the safety of Tβ4 for its current and planned uses in man”. Significantly, a human clinical trial in healthy volunteers found “intravenous administration of Tβ4 appears to be safe and well-tolerated by all subjects with no dose limiting toxicity or serious adverse events reported”. Admittedly, this trial is limited in that it only followed subjects for a period of 28 days, and thus there is a need for further research if Tβ4 is ever to be developed as a medication.
5-HTP is necessary for the proper functioning of your body. It is decarboxylated in the brain and liver to produce serotonin, a neurotransmitter. Serotonin is involved in the communication between nearly all of our 40 million brain cells, and is also found in large quantities in the cells of the gut, and in blood platelets. Because of its widespread distribution through the cells of the body, Serotonin is believed to have a large number of psychological and physiological effects. It has been used to treat conditions as diverse as obesity, depression, fibromyalgia, insomnia, and headaches, with varying success.
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.
Wonderful column. My expertise is the psychology of risk perception, and I have done some reading on oxytocin and trust (not the kind you want to boost in a bar with Liquid Trust – you can the stuff with pheromones – to boost THAT kind of trust). It turns out there is a high concentration of oxytocin receptors on the amygdala, the area of the brain where fear starts. As oxytocin levels go up, the ability of the amygdala to be warry and more mistrustful goes down. I describe this in Ch. 3 of How Risky Is It, Really? Why Our Fears Don’t Always Match the Facts. A few graphs of which are below. I wonder whether the influence of oxytocin on the amygdala might be connected with the finding of the study you write about.
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?

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 soluble form of Ac-SDKP peptide, derived from thymosin beta-4, has been described as a natural inhibitor of pluripotent hematopoietic stem cell proliferation and as a stimulator of angiogenesis, both in vitro and in vivo (Koutrafouri et al., 2001; Wang et al., 2004). This peptide has been selectively bound to acrylated hyaluronic acid hydrogels via thiol groups from cysteine residues (Song et al., 2014). Unfortunately, the immobilization process was poorly characterized and the effect of hydrogels on EC function was not tested in vitro. In a mouse model of chronic myocardial infarction, hydrogels with immobilized Ac-SDKP did not show improved regeneration potential. Yet, Ac-SDKP-HA hydrogels with entrapped stem cell homing factor SDF-1 showed a significant increase of myocardial regeneration and recovery of heart function, as compared to groups with only one or none of these factors, suggesting a potentially interesting synergistic effect.
Although research has shown that good communication predicts relationship success, successful communication in couples therapy won’t ensure that partners stay together. The goal is to help the two people understand each other’s point of view and come to a mutual decision, even if it’s to break up. “If people are not connected at all, then oxytocin is not going to force that connection,” Guastella says.
Skin damage and aging are induced to a large extent by free radicals from the sun and environmental pollutants and from oxidants produced during infection and inflammation. Lipid peroxidation of membranes and increased inflammatory substances, such as thromboxanes and leukotriens, add insult to injury. While skin damage accumulates with age, repair processes slow down. Thus, any boost by a molecule that would reduce free radicals and accelerate molecular events in healing has the potential to hasten skin repair. Tb4 has such healing qualities.
All of this becomes heavily ironic when you consider that the chemical in question – a hormone called oxytocin – is often billed as the “hormone of love”, and even marketed as “Liquid Trust”. As a new study shows, the reality is much more complicated. Describing oxytocin as the “hormone of love” is like describing a computer as a “writing tool” – it does other things too, some of which aren’t pleasant.
Oxytocin secreted from the pituitary gland cannot re-enter the brain because of the blood-brain barrier. Instead, the behavioral effects of oxytocin are thought to reflect release from centrally projecting oxytocin neurons, different from those that project to the pituitary gland. Oxytocin receptors are expressed by neurons in many parts of the brain and spinal cord, including the amygdala, ventromedial hypothalamus, septum and brainstem.
I have bee suffering from severe symptoms of post concussion syndrome for several.months after a car accident. The use of TB500 has been the only trratment ease my symptoms and give me my life back. I ceased use last week after 3 weeks and had reoccuring concussion symptoms. As such? I recommenced injections as of last night. Have you read much about the impact of TB500 on brain injury as I’d love to know if more prolonged use would have a permanent impact/remedy for me? Thanks for your time and interest.
5-HTP can affect a brain chemical called serotonin. Dextromethorphan (Robitussin DM, others) can also affect serotonin. Taking 5-HTP along with dextromethorphan (Robitussin DM, others) might cause too much serotonin in the brain and can result in serious side effects including heart problems, shivering, and anxiety. Do not take 5-HTP if you are taking dextromethorphan (Robitussin DM, and others).
Good quality Griffonia Simplicifonia, however the pouch is a very inconvenient packaging choice! Why not use the small 25-50gm pill bottle type? I used to be a quality controller in food additives and it would be so perfect to take doses from and fairly cheap and easy to source. I can understand if this is a new product for your line however but you should invest in this for 5htp alone perhaps. Thank you though will be ordering more down the track!

If you’re looking for hard proof that taking 5-HTP to lose weight works, we’ve got it: In a University of Rome study, obese women who took 5-HTP began eating between 1,000 to 2,000 fewer calories per day. And even as their caloric intake plummeted to a level that would leave many dieters irritable, serotonin was soothing these ladies — and not one reported hunger or diet crankiness. Further boosting spirits: The supplements quadrupled their weight loss, compared to folks given a placebo pill. “They ate a lot less than they normally would because it was easy for them,” Dr. Bhatia notes. Hearing about such an easy way to lose weight might be enough to inspire you to try the supplement for yourself. So, we went ahead and rounded up everything you need to know to get started.

The 10mg powder takes up about 5% of the bag it comes it, meaning you get a greater volume of the powder on your hand than in the spoon your using to find the powder at the bottom of the package. Since dosages are really small, I imagine most of the powder will be wasted. Also the 5-htp powder doesn't seem to dissolve or mix with liquids making it difficult to take. Other than the terrible packaging, the powder itself seems to be of good quality. Recommend it be repackaged in a bag 1/10th of the size, or alternatively, buy the capsules.
5-HTP is sometimes taken by people coming down from MDMA to relieve post-MDMA dysphoria.[8] As 5-HTP is a necessary precursor for the brain to produce more serotonin, and MDMA use depletes a person's natural serotonin levels, it is believed that taking 5-HTP after consuming MDMA will speed up serotonin production. DanceSafe claims that the anecdotal evidence is widespread and that the theory is physiologically reasonable.[9] Backing up this approach is research conducted by Wang, et al.  in 2007, which observed that MDMA-induced depletions of 5-HT (serotonin) were restored in rats after administration 5-HTP, and suggested that this approach might be clinically useful in abstinent MDMA users.[8]
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