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How to Read a Skincare Ingredient List

Ingredient lists are usually written from the largest amount to the smallest (required under EU and Korean rules), and anything under 1% can appear in any order. The first five ingredients make up most of the product. If the “hero” ingredient on the front sits near the end of the list, there may be very little of it.

Written by the Oliareen editorial teamDermatologist review: pendingLast updated: 6 November 2026How we write

The basic rules

  • Larger amounts come first, smaller ones later.
  • Ingredients under 1% can be listed in any order, so the tail of the list tells you little about amounts.
  • Names follow the international INCI system, a mix of English and Latin (Aqua = water).
  • Colourants usually appear at the end as CI numbers.

Read it in four steps

  • 1. Look at the first five: what is the base? Water, glycerin, oils, alcohol?
  • 2. Find where the headline ingredient sits in the list; a stated % is even better.
  • 3. Check for anything that has bothered your skin before, such as fragrance or a particular oil.
  • 4. If it has several actives (acids, retinol), count them against the rest of your routine.

Common names decoded

  • Aqua / Water = water; Glycerin, Butylene Glycol, Propanediol = water-attracting ingredients.
  • Sodium Hyaluronate = hyaluronic acid; Niacinamide = vitamin B3; Tocopherol = vitamin E; Ascorbic Acid = vitamin C.
  • Alcohol Denat. or Ethanol near the top can feel tight on dry or sensitive skin. But Cetyl, Stearyl and Cetearyl Alcohol are fatty alcohols that soften skin rather than dry it.
  • Parfum / Fragrance, Linalool, Limonene = fragrance, the most common cause of cosmetic allergy.
  • Zinc Oxide, Titanium Dioxide = mineral UV filters; CI 77491/77492/77499 = iron oxides (tint).

Common misreadings

  • “A chemical-sounding name means harmful.” Water is a chemical too; a hard name is not a danger sign.
  • “Natural means safe.” Essential oils and some plant extracts are major causes of allergy.
  • “Non-comedogenic” or “dermatologist tested” means no problems. These have no fixed legal standard.
  • Deciding by app ratings or colour badges, which do not know amounts or formulation.

What the list does not tell you

Lists usually do not show percentages, ingredient quality, pH or how stable the product is. The same ingredient can behave differently in two formulas. Label rules differ between countries, and a fake product can carry a wrong list. So always start a new product with a patch test.

Questions people ask

Do ingredients at the end of the list do nothing?

Not always. Some work at very low levels, such as certain peptides or retinol. Others are added in tiny amounts just for the label. A stated % makes it easier to judge.

Should I avoid anything with fragrance?

Not everyone needs to. But if your skin stings easily, you have eczema, or you have reacted before, fragrance-free is the safer pick.

Read next

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Sources

  1. Regulation (EC) No 1223/2009 on cosmetic products, Article 19 (labelling, descending order, under-1% rule)
  2. US FDA — Cosmetics labeling guide
  3. American Academy of Dermatology — How to test skin care products (patch test)
  4. WHO — Mercury in skin lightening products (WHO/CED/PHE/EPE/19.13, 2019)
  5. Oliareen research base — ingredient evidence (fragrance allergens, Bangladesh red-flag ingredients)