Recombinant Bovine Somatotropin vs Triclosan: which is worse?
Quick answer: Triclosan carries the heavier risk profile. Recombinant Bovine Somatotropin is — in the EU and — in the US; Triclosan is restricted in the EU and allowed in the US.
| Property | Recombinant Bovine Somatotropin | Triclosan |
|---|---|---|
| EU status | — | Restricted |
| US status | — | Allowed |
| Risk level | — | high |
| Banned in | European Union, Canada, Japan, Australia, New Zealand | — |
| Restricted in | — | European Union |
| Category | additive | endocrine disruptor |
| Where it hides | — | antibacterial soap, toothpaste, deodorant |
What is Recombinant Bovine Somatotropin?
Recombinant bovine somatotropin (rBST) is the synthetic version of bovine growth hormone (BST), naturally produced by the pituitary gland in cattle. The recombinant version is produced using genetically engineered bacteria and is injected into dairy cows to increase milk production by 10-15%. Brand name: Posilac.
What is Triclosan?
Triclosan is an antibacterial and antifungal agent.
Documented risks
Recombinant Bovine Somatotropin: See recombinant-bovine-growth-hormone-rbgh for full detail. Key concerns: rBST elevates IGF-1 in milk; elevated blood IGF-1 is associated with breast, prostate, and colorectal cancer risk in epidemiological studies. Animal welfare: increased mastitis (up to 25-50% higher rates), lameness, and antibiotic use. The Codex Alimentarius Commission declined to endorse rBST safety MRLs in a historic 33-29 vote. Health Canada rejected rBST approval in 1999 after finding it caused significant animal health problems requiring increased antibiotic use.
Triclosan: An endocrine disruptor linked to antibiotic resistance. Restricted in the EU and banned in US over-the-counter antibacterial soaps, but still allowed in some products.
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