How to Read a Skincare Ingredient List

The front of a skincare box is marketing. The ingredient list on the back is a regulated disclosure, and it is the only part of the packaging that has to be true in a specific, checkable way. Learning to read it takes about twenty minutes and it never stops being useful.

The naming system

Ingredients are listed using INCI names, a shared international naming system, which is why the same strange Latin word appears on products from every country. If you want to know what any INCI name actually refers to, the European Commission publishes the CosIng database as a free public lookup. In the US, labelling requirements sit with the FDA, which sets out what must appear on a cosmetic label.

Order is the single most useful signal

Ingredients are listed in descending order of concentration, down to 1%. Below 1% they can be listed in any order. That one rule tells you most of what you need:

• The first three to five ingredients are the bulk of the product. If water and a couple of emollients make up the top of the list, that is a basic moisturiser whatever the front of the box says.
• An ingredient near the end of a long list is present below 1%. For some ingredients that is completely normal and correct. For a hero ingredient the brand is charging extra for, it is a fair question.
• Fragrance, preservatives and colourants usually sit at the end, which is expected and not a problem by itself.

Where the 1% line usually falls

A practical trick: find the preservative or the thickener, because these are almost always used under 1%. Anything listed after that point is also under 1%. It is not exact, but it is close enough to judge whether the ingredient on the front of the bottle is genuinely a main event.

What the list cannot tell you

It does not give you exact percentages, so a brand that publishes a real concentration is giving you information the label alone never would. We state 2% for Hexapeptide-11 for exactly that reason. The list also tells you nothing about formulation quality, whether the actives are stable, or whether the whole thing has been tested on skin.

Claims on the front are a separate thing

Words like natural, clean and gentle are mostly unregulated. Words backed by a certification scheme mean something specific, which is the whole point of certifications like COSMOS NATURAL. Vegan and cruelty free are their own particular case, covered in what those labels legally mean. In the US, the rules for cosmetics were overhauled by MoCRA, the Modernization of Cosmetics Regulation Act, which is worth knowing exists.

A thirty second check

Read the first five ingredients. Find the hero ingredient and see where it sits. Check whether a concentration is stated anywhere. Decide whether the price matches what you just read. That is the whole method, and it will save you more money than any discount code.

You can run it on our own full product range, and we would rather you did.

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