Pangolin Scale Myths: What Traditional Medicine Gets Wrong
Pangolins are the most trafficked wild mammals on Earth. Tens of thousands are seized by law enforcement each year, and experts estimate that the true number removed from the wild is far higher. The primary engine driving this crisis is demand for pangolin scales in certain traditional medicine markets, particularly in parts of Asia. Yet the scientific evidence for any medicinal benefit from those scales is, to put it plainly, non-existent. This article examines the specific claims made about pangolin scales, what the biology of those scales actually tells us, and why the myth of their healing properties continues to cost lives -- both animal and human.
What Pangolin Scales Are Actually Made Of
Pangolin scales are composed almost entirely of keratin, a fibrous structural protein. This is the same substance that forms human fingernails, the hooves of horses, rhinoceros horns, and the outer layer of human hair. Keratin is not rare, is not biologically active in any therapeutic sense when consumed orally, and is not unique to pangolins in any chemically meaningful way. When scales are dried and ground into powder -- the form in which they are most commonly sold as a traditional remedy -- they become a keratin powder indistinguishable in its pharmacological profile from ground fingernail clippings.
There is no mystery or subtlety here that science is yet to unravel. Keratin has been extensively characterised. Researchers understand its amino acid composition, its molecular structure, and its behaviour in the digestive system. None of that research supports the idea that consuming it confers health benefits beyond a negligible protein contribution.
Why "Natural" Does Not Mean "Effective"
A common thread in arguments defending traditional medicine claims is that natural substances are presumed to work until proven otherwise. This logic inverts the standard of evidence that medicine requires. The appropriate question is not whether a claim has been disproven, but whether it has been proven. In the case of pangolin scales, no clinical trial, no rigorous pharmacological study, and no controlled experiment has demonstrated efficacy for any condition. The absence of disproof is not evidence of effect.
The Specific Claims and What Science Says
Claim: Scales Stimulate Lactation in Nursing Mothers
This is perhaps the oldest and most widely repeated claim associated with pangolin scales across several traditional medicine traditions. The proposed mechanism is never clearly articulated, because there is none. Lactation is regulated by the hormones prolactin and oxytocin, produced by the pituitary gland and the hypothalamus respectively. Keratin powder consumed orally does not interact with either of these hormonal pathways. No study has demonstrated that pangolin scale preparations influence milk production in humans or in animal models. Interventions with genuine evidence behind them -- including responsive feeding, skin-to-skin contact, and addressing underlying health conditions -- exist for women experiencing difficulty with lactation, and none involve pangolin products.
Claim: Scales Reduce Inflammation and Treat Arthritis
Anti-inflammatory properties are attributed to pangolin scales in some traditional Chinese medicine texts. When researchers have analysed the chemical constituents of pangolin scale preparations, they find keratin derivatives and trace minerals -- nothing that has demonstrated anti-inflammatory activity in laboratory or clinical settings. By contrast, well-characterised anti-inflammatory compounds exist in numerous plant species that are sustainably harvestable and that have actual pharmacological evidence supporting their use.
Claim: Scales Improve Circulation and Treat Cardiovascular Conditions
This claim appears in various traditional texts and is still promoted by some practitioners. Cardiovascular function is influenced by a complex interplay of lipid metabolism, vascular tone, cardiac output, and clotting factors. Keratin affects none of these mechanisms. Treatments with genuine evidence for cardiovascular conditions -- lifestyle modification, specific pharmaceuticals, and in some cases plant-derived compounds -- are the subject of an enormous and well-replicated body of research. Pangolin scales are not part of that literature in any credible capacity.
The African Dimension
While much media attention focuses on demand from East and Southeast Asian markets, it is important to acknowledge that pangolin parts are also used in some African traditional medicine and ritual practices. South Africa is home to the Temminck's ground pangolin (Smutsia temminckii), and seizure records maintained by organisations such as the African Pangolin Working Group document a consistent pattern of domestic trade alongside the better-publicised international smuggling routes.
In some southern African contexts, pangolin parts are used in ceremonies intended to bring luck or protection. These are distinct from the pharmacological claims examined above, but they carry the same practical consequence: wild pangolins are killed to supply a trade with no basis in demonstrable benefit. Traditional healers and community leaders who have engaged with conservation organisations have in several documented cases become advocates for pangolin protection once presented with population data and the legal risks of involvement in the trade. Education, conducted respectfully and in partnership with communities, is a more productive approach than condemnation.
The Trade in Numbers
Between 2016 and 2019, an estimated 206,000 pangolins were seized globally in reported cases, according to TRAFFIC, the wildlife trade monitoring network. Seizure data represent only a fraction of actual trade volumes. The financial value of pangolin scales on illicit markets runs into hundreds of millions of dollars annually. That capital flows almost entirely into criminal networks, not into the communities where pangolins live. In southern Africa, the poverty premium is real: a poacher at the bottom of a trafficking chain may receive a few thousand rand for an animal, while the same animal's scales fetch vastly more by the time they reach end markets. The conservation loss is total; the community benefit is marginal.
The Zoonotic Risk Factor
Pangolins have been identified as potential reservoir hosts for coronaviruses and other zoonotic pathogens. The handling, slaughter, and consumption of wild-caught pangolins by humans represents a genuine, evidence-supported health risk -- the opposite of the medicinal benefit claimed by proponents of the trade. This is a case where the traditional medicine belief not only fails to deliver the promised benefit but may actively expose practitioners and end-users to harm.
What Responsible Conservation Asks of Us
Debunking a myth is not the same as dismissing the people who hold it. Traditional knowledge systems have contributed genuinely valuable insights to pharmacology -- aspirin's origins in willow bark are a well-known example -- and many plant-based remedies are under active, legitimate investigation. The specific claim that pangolin scales have therapeutic value, however, does not belong in that category. It has been examined and found to lack any credible mechanism or evidence of effect.
For practitioners of traditional medicine who wish to maintain the trust of their patients, aligning claims with evidence is not a betrayal of tradition but a continuation of its core purpose: helping people. For consumers, understanding that pangolin scale products deliver no benefit makes clear that purchasing them causes harm for no return. And for policymakers, particularly in southern Africa where both the animals and some of the demand exist within the same borders, investment in community-based conservation and in education campaigns that are honest about the evidence represents the most cost-effective intervention available.
Pangolins have survived for approximately 80 million years. They predate the extinction of the dinosaurs. The threat they face today from an unfounded belief in the medicinal properties of their scales is, by any biological or historical measure, a very recent and entirely preventable catastrophe.
Frequently Asked Questions
Do pangolin scales have any proven medicinal properties?
No. Pangolin scales are composed of keratin, the same protein found in human fingernails and hair. No peer-reviewed clinical study has demonstrated any therapeutic benefit from consuming or applying pangolin scales.
Why are pangolin scales used in traditional medicine if they have no effect?
The belief predates modern biochemistry and was transmitted across generations before scientific testing was possible. Cultural inertia, the high cost of scales -- which implies rarity and therefore perceived value -- and commercial interests in the trade all reinforce the myth.
Are pangolins protected under international law?
Yes. All eight pangolin species are listed on CITES Appendix I, which bans commercial international trade. South Africa additionally protects pangolins under the Threatened or Protected Species Regulations of the National Environmental Management: Biodiversity Act.
What happens to pangolins captured for the traditional medicine trade?
Pangolins are highly stress-sensitive animals that rarely survive more than a few days in captivity without specialist care. Most individuals seized by traffickers die before they can be sold, making the trade extraordinarily wasteful as well as illegal.