To read a skincare ingredient list, start at the top: ingredients are generally listed from the largest amount down, so the first handful make up most of what's in the bottle. Then find the two or three ingredients doing the main job, check for anything your own skin doesn't get on with, and see whether the product overlaps with what's already on your shelf.
Why ingredient lists look so strange
You turn the bottle over and it's tiny print in what looks like Latin. Aqua. Butyrospermum Parkii. Tocopherol.
That's on purpose. Most brands use a shared naming system called INCI, so the same ingredient has the same name in every country. Aqua is water. Butyrospermum Parkii is shea butter. Tocopherol is a form of vitamin E. Once you know a few of these, the list gets much less intimidating.
What order tells you
The order is the most useful thing on the label. The first few ingredients are the bulk of the product. Water is often first in serums, toners and lotions. Oils and butters sit near the top of richer creams.
Further down, the amounts get small. Ingredients used in tiny amounts can appear near the end in any order. So if the front of the box makes a big deal of one ingredient and you find it right at the bottom, that's worth knowing.
The main groups you'll see
Humectants draw water into the top layer of skin. Glycerin, hyaluronic acid and sodium hyaluronate are common ones.
Emollients and oils soften and smooth. Squalane, shea butter and plant oils sit here.
Actives are the ingredients people buy a product for. Retinol, vitamin C (often listed as ascorbic acid), niacinamide, and acids like lactic, glycolic and salicylic.
Preservatives stop a water-based product going off once you open it. Phenoxyethanol is one you'll see a lot.
Fragrance may be listed as parfum or fragrance. Some regions also list certain scent ingredients separately, like linalool or limonene. Essential oils add scent too.
How to read a skincare ingredient list, step by step
- Find the list. It's on the bottle or the outer box. If the print is tiny, take a photo and zoom in.
- Read the first five or so. That's the base of the product. Is it mostly water, oil or something else?
- Spot the main actives. Look for the ingredient named on the front of the box and see roughly where it sits.
- Check your personal no list. Anything that's stung or bothered you before, look for it by name.
- Look for fragrance. If you know your skin is sensitive, this is a quick one to scan for.
- Compare with your shelf. Does this product share an active with something you already use? Two products with the same job can mean you're doubling up without meaning to.
- Patch test before full use. A small amount on one spot for a few days, before it goes on your whole face.
What about ingredients to avoid in skincare?
Search for this and you'll find long lists of scary-sounding chemicals. Most of those lists aren't useful for your face. A calmer way to think about it is a short, personal list.
Things your own skin doesn't get on with. If a cream left your cheeks stinging last year, find the bottle and look at its list. Compare it with anything else that bothered you. A shared ingredient is a clue.
Fragrance, if you know you're sensitive. Scent is one of the more common things people find irritating. If that's you, fragrance-free products make your life easier.
Doubling up actives. This is the one people miss. A retinol serum plus a night cream that also has retinol. An acid toner plus an acid serum on the same night. Each product is fine alone. Together, it can be a lot.
If you'd like a fuller sense of what goes together and in what order, Active Ingredient Layering and Routine Clarity covers that. And before buying anything new, What Does My Skin Actually Need? is a good check against your own shelf.
If something you're using causes irritation that doesn't settle, stop using it and see a dermatologist or doctor.
Where Oleah fits
Oleah is an iPhone skincare companion. You add the products in your routine and ask questions about them, and it can flag products in a routine that may not belong together. Quick face scans help you follow visible changes over time. It does not diagnose or treat, and it does not sell skincare.
Skincare ingredients FAQ
What ingredients should I avoid in skincare? Anything your skin has reacted to before, fragrance if you're sensitive, and doubling up on the same active across products.
Why are skincare ingredients listed in Latin? Most brands use the INCI naming system, so each ingredient has one name that's the same everywhere.
Does the order of ingredients matter? Yes. The list generally runs from the largest amount to the smallest, so the top few tell you what the product mostly is.
Is unscented the same as fragrance-free? Not always. An unscented product can contain an ingredient that masks other smells. Fragrance-free usually means no fragrance has been added.
