How we compare products
Transparent, ingredient-first matching — no paid rankings.
Ingredient overlap
When two products share a category (for example, both are toners), we parse each INCI list into individual ingredients and measure how much they overlap. The percentage on compare pages is a simple similarity score — higher means more shared ingredients, not automatically “better.”
Similar product matches
Dupe pages rank other products in the same category by overlap score. We cap how many matches we show per product so results stay focused on plausible alternatives, not random pairs.
Actives and concern tags
We flag known actives (niacinamide, centella, hyaluronic acid, and others) and apply rule-based concern tags such as oily-skin or fungal-acne-safe. These are starting points for research — not medical advice. Always patch test and speak to a professional for skin conditions.
What we do not do
- We do not claim to have personally tested every product.
- Affiliate partnerships do not change overlap scores or ranking order.
- We do not publish fake reviews or invented prices.