Standards
IFOS
IFOS (International Fish Oil Standards) is a third-party testing and certification program that evaluates fish oil products for purity, potency, and oxidation levels on a batch-specific basis.
IFOS focuses on what is inside the bottle — specifically for fish oil.
It is a voluntary, third-party testing program that evaluates finished products against defined benchmarks for purity, potency, and freshness.
Unlike manufacturing standards, IFOS operates at the product level, not the facility level.
At a high level, IFOS certification centers on four signals:
- EPA and DHA content — whether labeled amounts match actual measured values
- Contaminant levels — heavy metals, PCBs, dioxins, and other environmental toxins
- Oxidation markers — indicators such as peroxide and anisidine values that reflect freshness
- Batch-specific testing — whether results are tied to individual production lots
IFOS introduces measurement.
It does not define formulation quality.
A product can achieve a high IFOS rating and still deliver a suboptimal dose or ratio.
Testing verifies what is present. It does not determine whether it is meaningful.
See Also
Omega-3 is a category of essential fatty acids—most notably EPA and DHA—commonly linked to heart, brain, and inflammatory health.
cGMP (Current Good Manufacturing Practices) is a regulatory framework that defines how supplements must be manufactured to ensure consistency, quality control, and basic product safety.