How to Read an INCI List

The INCI list — that dense column of Latin-inflected nomenclature printed in the smallest permissible font on the reverse of every skincare product — is one of the most powerful tools available to the informed consumer. It is also, for most people, entirely unreadable. Ingredients are listed by their International Nomenclature of Cosmetic Ingredients designation: standardised, consistent across borders, and systematically organised. Once you understand the grammar, the label tells you everything.

Reading an INCI list is not merely an exercise in ingredient scouting. It is an act of autonomy — the ability to evaluate what you are putting on your skin, to identify allergens, to compare formulations, and to cut through the marketing language that often dominates the front of the packaging.

The Ordering Principle

The single most important rule of INCI lists: ingredients are listed in descending order of concentration, from the highest to the lowest, down to 1%. Below 1%, manufacturers are permitted to list ingredients in any order they choose. This means that the first five or six ingredients typically constitute the bulk of the formula — often accounting for 80 to 95% of the product by weight.

When you see aqua (water) listed first, it simply means that water is the primary carrier for the formula. When you see a coveted active like hyaluronic acid listed near the end, it does not necessarily mean the ingredient is ineffective — some actives, like retinol or certain peptides, function at very low concentrations — but it does invite scrutiny when the marketing positions that ingredient as the hero of the formula.

Key Ingredients to Identify

Emollients and occlusives appear near the top of most moisturisers — ingredients such as glycerin (a humectant that draws water into the skin), squalane (a lightweight emollient that mimics the skin's natural sebum), and ceramides (lipids that form the structural mortar of the skin barrier). Their presence in meaningful quantities, early in the list, is a sign of a well-constructed base.

Actives — the ingredients with a specific, documented mechanism of action — may appear anywhere on the list depending on their effective concentration. Niacinamide is typically effective from 5% upward; vitamin C from 10 to 20%; retinol from 0.025% for beginners, and up to 1% in prescription formulations. Peptides and growth factors can be meaningful in concentrations below 1%, which is why their position on the list requires context rather than snap judgement.

Preservatives such as phenoxyethanol, ethylhexylglycerin, and sodium benzoate will almost always appear toward the end of the list. Their role is essential — they prevent the contamination of water-containing formulas with bacteria and mould — and their presence at low concentrations is a feature, not a concern.

What to Watch For

Fragrance — listed as parfum or fragrance — is the most common cause of contact dermatitis in skincare. It may be derived from naturals or synthetics, but neither distinction changes its irritation potential for sensitive skin. Those with reactive complexions should seek fragrance-free formulations, which will bear no parfum or fragrance entry on the INCI list.

Essential oils — rose, lavender, citrus — are not inherently harmful, but they are biologically active and can trigger photosensitivity or sensitisation over time, particularly in high concentrations or in leave-on formulations. Their INCI names are usually botanical: Rosa damascena flower water, Lavandula angustifolia oil, Citrus aurantium bergamia peel oil.

Alcohol — specifically ethanol or alcohol denat — appears in many serums and toners as a solubiliser and texture agent. In high concentrations (toward the top of the list), it can compromise barrier integrity over time. Lower in the list, it is generally considered benign.

The Vela Standard

At Vela Beauty, we have built our brand on a single editorial principle: short formulas. Every product we formulate contains only the ingredients required to deliver its stated function — no fillers, no unnecessary fragrance, no ingredients included for marketing aesthetics rather than skin benefit. Our INCI lists are brief by design. We believe that when you turn over a Vela product, you should be able to read and understand every ingredient on the label.

This is not minimalism for minimalism's sake. It is the belief that transparency and efficacy are not in conflict — that the most sophisticated skincare is also the most legible. Read the label. Know what you are choosing. Your skin deserves nothing less.