Reading an INCI List

What INCI Actually Means

INCI stands for International Nomenclature of Cosmetic Ingredients - it's the standardised naming system used on cosmetic labels worldwide, so a consumer (or a formulator) in Australia, the US, or Europe can identify exactly what's in a product regardless of local language or brand marketing terms.

Every ingredient list you see on a cosmetic label - yours or a competitor's - is written in INCI. Once you know how to read it, you can genuinely evaluate any product on the market, not just take a brand's word for what's inside.

The Order Is Not Random

This is the single most useful thing to understand: ingredients are listed in descending order of concentration, from most to least, down to the point where an ingredient makes up less than 1% of the formula. Below that 1% threshold, ingredients can be listed in any order.

In the example above, Aqua (water) is always the base of most formulas and typically the largest ingredient by far - often 70-90% of the total. Glycerin, further down, might be 3-5%. By the time you reach Tocopherol (Vitamin E) near the end, you're often looking at well under 1%.

This is exactly how you can spot a "hero ingredient" that's mostly marketing versus one that's actually dosed to work. If a product's headline ingredient is listed 15th out of 18, it's almost certainly there in a token amount.

Reading Trade Names vs. INCI Names

Suppliers often sell ingredients under a trade name (a marketing name for their specific branded version of an active) rather than the raw INCI name. On a compliant label, only the actual INCI name can appear - not the trade name.

• Example: "ALGAKTIV® Uplift" is a trade name for a specific algae-derived peptide blend. The label would need to show its actual INCI components, not the trade name itself.
• Example: "STAY-C 50" is a trade name for Sodium Ascorbyl Phosphate, a stable Vitamin C derivative.

If you're briefing a manufacturer and they mention a trade-name ingredient, always ask for the INCI name too - that's what determines compliance, allergen declarations, and how the ingredient will actually appear on your finished label.

Spotting Fragrance and Allergens

"Parfum" (or "Fragrance") on a label almost always represents a proprietary blend of multiple aroma components, which suppliers aren't required to fully disclose - it's treated as a trade secret. However, certain fragrance components recognised as common allergens (like Linalool, Limonene, Citral, or Eugenol) must be individually declared if present above a threshold concentration, even within an otherwise undisclosed "Parfum" blend.

So it's normal to see both "Parfum" and a handful of named allergens later in the same list - that's not a formulation error, it's how the labelling rules work.

A Quick Practical Checklist

• Check where your headline active sits in the list - early enough to matter, or buried near the bottom?
• Look for "Aqua" or "Water" first - if it's missing, you're likely looking at an anhydrous (oil/wax-based) product, which behaves very differently on skin.
• Trade names in ingredient lists are a red flag for compliance - always ask for the actual INCI breakdown.
• Named allergens near the end of a list alongside "Parfum" are standard, not a warning sign on their own.