Does ingredient order show how much is in a product?

People often read an ingredient list as a ranking, with the first few names being “the real product”. That is half right. The rules give a clear order for the top of the list and almost none for the bottom.

The rule in the U.S.

The FDA cosmetics labeling guide says ingredients must be listed in descending order of predominance. That means the ingredient present in the largest amount comes first.

The same guide says ingredients present at a concentration not exceeding 1% may be listed in any order. The federal regulation, 21 CFR 701.3, describes the same split. Ingredients above 1% come first in descending order. Ingredients at not more than 1% follow, without respect to order. Color additives come after, also without respect to order.

The rule in the EU

Article 19 of Regulation (EC) No 1223/2009 says the list is established in descending order of weight of the ingredients at the time they are added to the product. Ingredients in concentrations of less than 1% may be listed in any order, after those above 1%.

Colorants other than hair colorants may be listed in any order after the other ingredients.

What the order does tell you

• Above the 1% line, an ingredient listed earlier is present in a larger amount than one listed later.
• An ingredient near the top is not a trace amount.
• In the EU, the comparison is by weight when the ingredients are added to the product, not by weight in the finished product.

What the order cannot tell you

• The percentage. Two products can list the same ingredient in third place with very different amounts.
• Where the 1% line falls. The list does not mark it. An ingredient in position 8 may be above or below 1%.
• The order among the ingredients below 1%. Below 1%, any sequence is allowed, so a later position there does not mean a smaller amount.
• What a fragrance blend holds. Fragrance can be one entry for many components, and in the EU, parfum is one entry.
• Anything about how a product feels or suits your skin.

Using this on a real label

Count the ingredients, then read the list in two parts. Read the first few as the largest ingredients. Read the long tail as a group with no dependable order. The 1% line can fall early in a short list, so an ingredient in the middle may already be below it.

Poliage shows the ingredients as they are printed on the label, with the “Contains” notes on top. A flag states that an ingredient is listed. It does not say how much of it there is. If you want an amount, only the maker can give it. Labels can be misread, and a maker can change a formula without changing the barcode, so the label on the pack comes first.

Where this comes from

The U.S. rule comes from the FDA cosmetics labeling guide and the federal regulation on designation of ingredients, 21 CFR 701.3. The EU rule comes from Article 19(1)(g) of Regulation (EC) No 1223/2009.