01 / SCORINGHow the longevity score works.
Every ingredient in our database gets a longevity score from 1–10, weighted by evidence of harm or benefit to long-term health. When you scan a product, we calculate a weighted overall score based on ingredient order — ingredients listed first are present in the highest quantities and carry more weight.
The framework isn't about acute toxicity. It's about chronic exposure: what happens when you eat or apply something hundreds of times a year, every year, for decades.
02 / HARMFULIngredients most linked to shortened healthspan.
These aren't fringe claims. Each of these has credible mechanistic evidence or epidemiological associations with accelerated aging, chronic disease, or cancer risk.
Ultra-processed foods consistently show association with increased all-cause mortality in large cohort studies. The harm is rarely a single ingredient — it's the combination.
03 / BENEFICIALIngredients that support longevity.
These aren't supplements marketed with vague claims. Each has mechanistic evidence for activating pathways directly implicated in longevity biology — sirtuins, AMPK, autophagy, NRF2.
04 / CONTEXTThe ultra-processed food problem.
The NOVA classification system groups foods by degree of processing. NOVA 4 (ultra-processed) foods — those with five or more additives, artificial flavours, emulsifiers, or stabilisers — are consistently associated with increased all-cause mortality in cohort studies involving hundreds of thousands of participants.
The harm isn't necessarily from any single ingredient. It's the combination of low-quality raw materials, loss of food matrix, and the additive load — plus the displacement of whole foods from the diet.
When you scan a product with 20+ ingredients, most of them additives, that context matters more than any individual ingredient flag.
05 / VERDICTThe bottom line.
Chronic exposure matters more than acute risk.
High-fructose corn syrup, trans fats, and sodium nitrate aren't going to cause immediate harm. The concern is what happens when they're a daily fixture in your diet for 20 years. Small changes in chronic exposure compound over time — in both directions.
If a product has one of these ingredients and you eat it occasionally, that's not a crisis. If it's in everything you eat, that's worth changing. The longevity framework is about patterns, not panics.