How to Read a Skincare Label: Ingredients, Claims and What They Mean

Skincare packaging is designed to sell, and the most prominent words on the front are often the least informative. The useful information is on the back, in the ingredient list and the small print. Learning to read it takes a few minutes and makes it much easier to compare products and avoid buying the same thing twice under different names.

The ingredient list (INCI)

Most markets require ingredients to be listed using standardised INCI names, in descending order of concentration down to about 1%. Below that threshold, ingredients can appear in any order. In practice this means the first five or so ingredients make up most of the formula. Water (aqua) is usually first. If an ingredient that the front of the pack highlights appears near the very end of the list, it is likely present in a small amount.

Percentages on the front

Some brands state the concentration of key actives, such as niacinamide or vitamin C. This is helpful, but a higher percentage is not automatically better. Higher concentrations of some actives can increase the chance of irritation, and the formulation, pH and packaging can matter as much as the number. Treat percentages as a way to compare similar products rather than a ranking of effectiveness.

Common claims and what they mean

• Non-comedogenic suggests the product is formulated to be less likely to clog pores. There is no single regulated test for this claim, so it is a guide rather than a guarantee.
• Hypoallergenic generally means the manufacturer believes the product is less likely to cause allergic reactions. It is not a promise that nobody will react.
• Dermatologist tested means a dermatologist was involved in testing in some way; it does not say what the results were.
• Fragrance-free means no fragrance has been added for scent, while unscented can mean a masking fragrance is used to neutralise odour.
• Clean and natural have no consistent legal definition in most markets.

Patch testing and sensitive skin

If you have sensitive skin or a history of reactions, check the list for ingredients that have caused problems before, such as specific fragrances or preservatives. Patch test new products on a small area for a few days before using them across your face. Introduce one new product at a time so you can identify the cause if something goes wrong.

Expiry and storage

Look for the period-after-opening symbol, an open jar with a number such as 6M or 12M, which shows how long the product is intended to be used after opening. Products containing ingredients that degrade with light and air, such as some forms of vitamin C or retinoids, are often packaged in opaque or airless containers for that reason.

When to ask a professional

Persistent acne, rashes, sudden changes in moles or pigmentation, and skin conditions such as eczema or rosacea are worth discussing with a pharmacist, GP or dermatologist rather than managing with over-the-counter products alone.

In short

Read the back before the front, pay attention to the first few ingredients, treat marketing claims as hints rather than guarantees, and introduce new products one at a time.