How to read a skincare label without a chemistry degree
How to read a skincare label: what the order of ingredients means, what claims to question and when to ask a pharmacist or dermatologist before you buy.
Thomas Lefèvre2 min read
Turn the product around. The front sells. The back tells you what is in it.
What should I check first?
- Ingredient order. Ingredients are usually listed from most to least in the product. The first few make up most of it.
- Your known triggers. If you have reacted to an ingredient or perfume before, look for it by name. Ask your doctor or pharmacist for the exact names to avoid.
- Claims. Words like "dermatologist tested" or "natural" are not the same as "suits your skin". Treat them as marketing until a professional tells you otherwise.
- Use and warnings. Check how often to use it, whether it needs sunscreen with it and what to avoid.
- Dates. Look for an expiry or a "months after opening" symbol.
A rule to use
Add one new product at a time, patch test it first and wait before adding another. Our page on patch testing shows the steps. If your skin reacts, you will know which product caused it.
What about sunscreen?
Sunscreen labels have their own details, such as SPF and a UVA mark. See how to choose a sunscreen.
The exception
If you have a skin condition such as ongoing acne, a rash, or a mark that is changing, a label is not the answer. Ask a doctor or pharmacist. See acne: when to see a dermatologist. Seek urgent care for swelling of the face or lips, trouble breathing, or a rash that spreads quickly.
This is general information. Ask a licensed professional about your own skin.
More to read
Keep reading

Laser hair removal: what to ask before you book
Laser hair removal questions to ask before booking: who is licensed, how skin and hair are assessed, side effects, aftercare and what to get in writing.
Thomas Lefèvre4 min read

Acne: when to see a dermatologist, not a salon
Acne is common and has many treatment options. Here is when official advice suggests seeing a doctor or dermatologist, and what to ask at the visit.
Thomas Lefèvre2 min read

Should I get a mole checked? What to do next
Wondering whether to get a mole checked? Here is when the NHS says to see a doctor, who to ask and what to bring, in plain words. Not a diagnosis.
Thomas Lefèvre2 min read

Questions to ask before a chemical peel
Thinking about a chemical peel? Here are the questions to ask a licensed professional, red flags to watch for and what to expect before and after.
Thomas Lefèvre5 min read

How to choose a sunscreen: SPF, stars and amounts
How to choose a sunscreen for daily use: what SPF and UVA star ratings mean, how much to apply and when to reapply, based on NHS and AAD advice.
Thomas Lefèvre5 min read

Laser tattoo removal: what to ask before you book
Thinking about laser tattoo removal? Here are the questions to ask about who is licensed, the laser used, skin checks, side effects, sessions and aftercare.
Thomas Lefèvre4 min read

