How to Read a Skin Health Label

The same way you’d read specs on anything else. A complete guide to INCI lists — what every ingredient name means, why the order matters, and how to tell what’s actually in the bottle.

You wouldn’t buy a pair of running shoes without checking what they’re made of. You wouldn’t put fuel in a car without knowing the grade. You read the nutrition label on food, the spec sheet on tools, the thread count on sheets.

And yet most men have never read the ingredient list on a product they put on their skin every day. Not because they don’t care. Because nobody ever showed them how.

An INCI list is the only place on any product that tells you, with legal precision, exactly what’s inside. Everything else — the marketing, the claims, the branding — is interpretation. The INCI list is fact. Learning to read it takes about ten minutes. Once you can, you’ll never look at a product the same way again.

What Is an INCI List?

INCI stands for International Nomenclature of Cosmetic Ingredients — a standardised naming system used on every cosmetic product sold in the European Union and most of the world. Under EU Regulation EC 1223/2009, every product must display its full ingredient list using these standardised names.

The system exists so that an ingredient is called the same thing regardless of which brand uses it, which country it’s sold in, or what language you speak. Glycerin is Glycerin whether it’s in a €5 supermarket wash or a €50 serum. Sodium Coco-Sulfate is Sodium Coco-Sulfate whether the bottle calls the product “gentle” or not.

That standardisation is your leverage. Once you know what the names mean, no brand can hide behind marketing language. The INCI list is the great equaliser — it tells you what’s in the bottle, and it doesn’t care about the price tag.

The Two Rules That Govern Every Label

Every INCI list follows two rules. Understand these, and you can read any label in any shop.

Rule One: Descending Order of Concentration

Ingredients are listed from highest to lowest concentration by weight at the time they were added to the formula. The first ingredient is what there’s most of. The last ingredient is what there’s least of. This is EU law, not a guideline — every manufacturer must comply.

In most washes and moisturisers, the first ingredient is either Aqua (water) or a plant juice like Aloe Barbadensis Leaf Juice. That’s not filler — water is the base that carries everything else into your skin. What comes immediately after water tells you more about the product’s character than anything on the front of the bottle.

Rule Two: The 1% Line

Here’s the detail most people miss. Ingredients present at less than 1% concentration can be listed in any order. This means the bottom third of most INCI lists — preservatives, fragrances, botanical extracts, active ingredients used in small concentrations — isn’t necessarily in order of amount.

This matters because some of the most effective ingredients work at very low concentrations. Bakuchiol, hyaluronic acid, and many plant extracts are effective well below 1%. Their position near the end of the list doesn’t mean they’re insignificant — it means they’re effective at small doses. Equally, a long list of botanical extracts at the bottom can sometimes be more about label appeal than functional benefit. The skill is knowing which low-concentration ingredients genuinely matter.

Walking Through a Real Label

Theory is useful. Practice is better. Here’s the full INCI list from our Daily Clarifying Gel — every ingredient, explained.

Aloe Barbadensis (Aloe) Leaf Juice* — The base. Where most cleansers start with water, this one starts with organic aloe juice. Aloe is a natural humectant (it attracts and holds water) and carries anti-inflammatory properties. Starting with aloe instead of water is a formulation choice that costs more but delivers hydration from the first ingredient down.

Lauryl Glucoside — A surfactant. This is one of the ingredients that makes the product clean your skin. Glucoside-based surfactants are derived from coconut and glucose — they produce a gentle lather and remove dirt and oil with minimal disruption to the lipid matrix that keeps your skin barrier intact.

Glycerin — A humectant. Glycerin draws water from the environment and from deeper skin layers into the stratum corneum, the outermost layer of your skin. It’s one of the most well-studied and reliable hydrating ingredients in existence. Simple. Effective. Present in almost every well-formulated product you’ll encounter.

Sodium Coco-Sulfate — Another surfactant, coconut-derived. This is a sulfate — and it’s worth being honest about what that means. Sodium Coco-Sulfate (SCS) and Sodium Lauryl Sulfate (SLS) are chemically related — both are coconut-derived and they share the same CAS registry number. The difference is that SLS is purified to concentrate the C12 (lauryl) fraction, while SCS retains the full range of fatty acid chain lengths from coconut oil. Some research suggests SCS has a somewhat lower irritation potential, but the two are more similar than marketing around “sulfate-free” often implies. What matters more than any individual surfactant is the full formula — and this cleanser combines SCS with four other surfactants (glucosides and amino acid types), distributing the cleaning action so no single agent does all the work.

Aqua — Water. Used here as a solvent and processing agent, not the primary base. Notice it’s fifth, not first. That’s unusual — and intentional.

Sodium PCA — Part of your skin’s own natural moisturising factor (NMF). Your skin naturally produces Sodium PCA to maintain hydration. Adding it topically supports what your skin already does. Think of it as reinforcement, not replacement.

Disodium Cocoyl Glutamate — A third surfactant, amino acid-based. Derived from coconut oil and glutamic acid. Amino acid surfactants are among the gentlest cleansing agents available — they clean effectively while being exceptionally compatible with skin. This is the multi-surfactant approach in action: a glucoside, a coco-sulfate, and now an amino acid type, each contributing differently to the overall cleanse.

Sodium Levulinate — A preservative derived from plant sources. Keeps the product stable and free from microbial contamination. Every water-containing product needs preservation — without it, bacteria would colonise the bottle within days. The question isn’t whether preservatives are present, but which ones and how they work.

Citric Acid — A pH adjuster. This ensures the product sits at the right acidity for your skin — ideally between pH 4.5 and 5.5, which supports your skin’s natural acid mantle rather than disrupting it.

Coco-Glucoside — A fourth surfactant. Another gentle glucoside. Its presence here, below Citric Acid, tells you it’s at a low concentration — likely included for its foam-stabilising properties rather than primary cleansing.

Glyceryl Oleate — An emollient and skin-conditioning agent. Derived from glycerin and oleic acid (a fatty acid found in olive oil). It softens the cleansing effect of the surfactants, helping the formula feel comfortable rather than stripping.

Sodium Anisate — Another plant-derived preservative. Works alongside Sodium Levulinate to keep the product stable. Two preservatives working together at lower individual concentrations is a common strategy in natural formulation — effective preservation, minimal irritation.

Sodium Cocoyl Glutamate — A fifth surfactant. Amino acid-based, exceptionally mild. At this concentration, it’s likely contributing to the product’s texture and feel rather than doing heavy cleaning. Five surfactants sounds complex — but the result is a cleanser that works gently across multiple mechanisms. That’s formulation craft.

Parfum — Fragrance, derived from natural essential oils (this is a COSMOS Natural certified product, so synthetic fragrance is prohibited). Notice what’s NOT listed after Parfum: no individual allergens like Limonene, Linalool, or Geraniol. This product is classified as Allergen Label Free — meaning every fragrance allergen falls below the EU declaration threshold. That’s not common, and for men with reactive skin, it’s worth knowing. We’ll come back to what Parfum means — and doesn’t mean — shortly.

Prunus Domestica (Plum) Fruit Extract* — A botanical extract from organic plum fruit. Provides antioxidant properties that help protect the formula from oxidative degradation over time.

Sodium Phytate — A chelating agent derived from plant sources. It binds metal ions that can destabilise the formula or promote oxidation. Think of it as the ingredient that keeps everything else working properly over time.

* Ingredients from organic farming

That’s sixteen ingredients. Every single one named, explained, and justified. This is what transparency actually looks like — not a badge on the packaging, but the willingness to tell you what every line on the label means and why it’s there.

The Five Families

Once you’ve seen one INCI list broken down, patterns start to emerge. Most ingredients fall into five broad categories. Knowing the families means you can pick up any product and understand what it’s trying to do.

Surfactants — The Cleaners

Any product that lathers, foams, or washes contains surfactants — molecules that bind to both oil and water, allowing dirt and excess sebum to be rinsed away. The spectrum runs from aggressive (Sodium Lauryl Sulfate) to gentle (glucosides, amino acid-based surfactants like Cocoyl Glutamate). What matters isn’t whether a product contains surfactants — it’s which ones and how many. A formula that distributes cleaning across several gentle surfactants puts less stress on your skin than one that relies on a single harsh one.

Humectants — The Water Magnets

Humectants attract and hold water in the outer layers of your skin. Glycerin, Hyaluronic Acid, Sodium PCA, Betaine, and Aloe Vera are all humectants. They’re the reason a product makes your skin feel hydrated hours after application — they’re physically holding water against the surface. In a humid climate, they pull moisture from the air. In a dry one, they work best when sealed in by an occlusive layer on top.

Emollients — The Softeners

Emollients fill the gaps between skin cells and smooth the surface. Plant oils — Jojoba, Rosehip, Evening Primrose — are natural emollients. So are ingredients like Squalane, Coco-Caprylate, and Shea Butter. They soften, they protect, and many of them supply fatty acids that your skin barrier uses as building material. When you pick up an oil serum and the first five ingredients are all plant oils, you’re looking at a product built on emollients.

Preservatives — The Stability System

Every product containing water needs preservatives to prevent microbial growth. This isn’t optional — an unpreserved water-based product would be unsafe within days. In COSMOS-certified products, synthetic preservatives like parabens are prohibited. Instead, you’ll see plant-derived alternatives: Sodium Levulinate, Sodium Anisate, Benzyl Alcohol, Sodium Benzoate, Potassium Sorbate. These work differently from their synthetic counterparts but achieve the same result — a product that’s safe to use throughout its shelf life.

Fragrance — The Scent

On an INCI list, the word “Parfum” (or “Fragrance” in some markets) covers whatever gives the product its scent. In conventional products, this can be a blend of dozens of synthetic compounds that the manufacturer isn’t required to itemise individually. In COSMOS-certified products, Parfum must be derived from natural essential oils — synthetic fragrance compounds are prohibited.

But here’s the nuance worth understanding: natural fragrance still contains individual chemical compounds, and some of them are recognised allergens. EU law requires that specific allergens be declared individually on the label when they exceed certain thresholds — 0.01% in rinse-off products, 0.001% in leave-on products.

So when you see an INCI list that reads “…Parfum, Limonene, Linalool, Geraniol…” — those aren’t separate added ingredients. They’re naturally occurring compounds within the essential oils that make up the Parfum, and they’re listed individually because they’re recognised allergens above the declaration threshold.

This is neither good nor bad. For most people, natural fragrance allergens cause no reaction whatsoever. For men with reactive or sensitive skin, knowing which allergens are present — and at what threshold — is the difference between a product that works and one that causes irritation.

Reading the Symbols

On COSMOS-certified products, you’ll sometimes see small symbols next to ingredient names — typically a numbered marker like ➀, ➁, or ➂. These aren’t decorative. They carry specific meaning defined by the COSMOS standard.

➀ Ingredients from organic farming — The raw material was grown and harvested under certified organic agricultural conditions. This is the highest designation for a plant-derived ingredient in a COSMOS product.

➁ Made using organic ingredients — The ingredient was processed or derived from organic raw materials. The processing itself may involve approved non-organic steps, but the starting material was organic.

➂ From natural essential oils — This typically appears next to fragrance allergens (Limonene, Linalool, Geraniol, etc.) to clarify that these compounds aren’t synthetic additions — they’re naturally occurring components of the essential oils used for scent.

These symbols are your shortcut to understanding the organic story of a product without needing to research each ingredient individually. When you see six or seven ingredients marked with ➀, you’re looking at a formula with a serious commitment to organic sourcing.

A Second Label: How an Oil Serum Reads Differently

To show how the same skill applies to different product types, here’s the opening of the INCI list from our Retinol Alternative Serum — an oil-based product with a completely different structure:

Simmondsia Chinensis (Jojoba) Seed Oil* — The base. Where the Clarifying Gel started with aloe juice, this serum starts with organic jojoba oil — one of the closest plant oils to the sebum your skin naturally produces. Jojoba is technically a liquid wax ester, which means it’s absorbed efficiently without leaving a heavy residue.

Decyl Cocoate — An emollient derived from coconut. Light, non-greasy, helps the serum spread and absorb evenly.

Dicaprylyl Carbonate — A light emollient that improves the product’s texture without feeling oily. Common in oil-based formulations where a dry finish is desirable.

Coco-Caprylate/Caprate — Another light emollient from coconut oil fractions. Notice the pattern — the first four ingredients are all emollients, building the product’s feel and absorption from the ground up.

Oenothera Biennis (Evening Primrose) Oil* — Rich in gamma-linolenic acid (GLA), an omega-6 fatty acid that supports skin barrier repair and has anti-inflammatory properties.

Rosa Canina (Rosehip) Fruit Oil* — Rich in essential fatty acids — linoleic, alpha-linolenic, and oleic — along with carotenoids (pro-vitamin A compounds) and tocopherols (vitamin E) that give it antioxidant properties. A 2024 review in Frontiers in Pharmacology identified Rosa Canina as the most extensively studied rosehip species for dermatological applications, with its fatty acid composition and vitamin content as the primary active mechanisms.

Bakuchiol — The star ingredient. A plant-derived compound from the Psoralea corylifolia plant that functions as a retinol alternative. One published clinical study — Dhaliwal et al., British Journal of Dermatology, 2019, 44 participants — found that bakuchiol delivered comparable improvements in wrinkle reduction and pigmentation to retinol, with significantly less scaling and irritation. Seventh on the list, past the 1% line — but bakuchiol is effective at concentrations as low as 0.5%.

You’ll notice: no water. No surfactants. No preservatives in the traditional sense (anhydrous — waterless — products don’t need them because bacteria require moisture to grow). The entire architecture is different because the product’s job is different. The Clarifying Gel cleans. The serum nourishes. The INCI list tells you which, before you ever open the bottle.

What to Look For, What to Question

You don’t need to memorise two hundred ingredient names. You need a handful of principles that apply to every product you’ll ever evaluate.

Where does water or the base ingredient sit? The first ingredient sets the stage. Aqua (water), aloe juice, or a plant oil — each tells you what kind of product you’re holding and what the formulator prioritised.

How many surfactants, and which kind? In a cleanser, surfactants are the functional core. Multiple gentle surfactants working together is generally kinder to your skin than a single aggressive one doing all the work.

What’s doing the hydrating? Look for humectants (Glycerin, Hyaluronic Acid, Sodium PCA) in the top half of the list. If the marketing says “deeply hydrating” but the humectants sit at the very bottom, the product may not deliver what the front label promises.

Is the fragrance natural or synthetic? In COSMOS-certified products, Parfum is always natural. In non-certified products, Parfum could be anything — the manufacturer isn’t required to tell you what’s in it. If individual allergens like Limonene, Linalool, or Geraniol are listed after Parfum, that’s transparency. If Parfum is listed alone without any allergens itemised, either the fragrance is below the allergen declaration threshold, or the product isn’t following the disclosure rules.

What’s the preservation strategy? Every water-based product needs it. Plant-derived preservatives like Sodium Levulinate and Sodium Anisate tell you one story. Synthetic preservatives like methylparaben tell a different one. Neither is automatically dangerous — the question is whether the brand tells you which approach they chose, and why.

Are there ingredients you can’t identify at all? That’s fine. INCI names are standardised Latin and chemistry terms — they’re not designed to be instantly readable. What matters is whether the brand is willing to explain them. If a company’s website doesn’t translate their own INCI list into plain language, that tells you something about how much they trust you with the truth.

Frequently Asked Questions

What does INCI stand for?

INCI stands for International Nomenclature of Cosmetic Ingredients. It’s a standardised naming system used across the EU and most global markets so that every ingredient is identifiable by the same name regardless of brand, country, or language. It’s mandated by EU Regulation EC 1223/2009 for all cosmetic products.

Why are INCI ingredients listed in Latin?

Plant-derived ingredients use their botanical Latin name (e.g., Aloe Barbadensis for aloe vera, Simmondsia Chinensis for jojoba). Chemical ingredients use their standardised chemistry names (e.g., Glycerin, Sodium Coco-Sulfate). The Latin botanical names ensure consistency — the same plant is called the same thing worldwide, regardless of common names that vary by region.

What is the 1% line on an INCI list?

Under EU law, ingredients at concentrations above 1% must be listed in strict descending order. Below 1%, they can be listed in any order. This means the exact position of low-concentration ingredients — preservatives, fragrance, botanical extracts, some active ingredients — may not reflect their relative amounts. Many effective ingredients, including bakuchiol and hyaluronic acid, work at concentrations well below 1%.

Is Parfum always synthetic?

No. In COSMOS Natural or COSMOS Organic certified products, Parfum must be derived from natural essential oils — synthetic fragrance is prohibited. In non-certified products, Parfum can contain any combination of synthetic or natural fragrance compounds. The certification status of the product tells you which you’re getting.

What are fragrance allergens on an INCI list?

EU law requires certain compounds to be individually declared when present above specific thresholds — 0.01% in rinse-off products, 0.001% in leave-on products. Common examples include Limonene, Linalool, Geraniol, and Citronellol. In COSMOS-certified products, these occur naturally within essential oils. They’re flagged not because they’re harmful to most people, but because a small percentage of the population may be sensitive to them. Their presence on a label is transparency in action.

Should I avoid all sulfates?

Not necessarily. “Sulfate-free” has become a marketing claim, but the reality is more nuanced. Sodium Lauryl Sulfate (SLS) is a well-known irritant that can strip the skin barrier. Sodium Coco-Sulfate (SCS) is chemically related — both are coconut-derived and share the same CAS registry number — though SCS retains a broader range of fatty acid chain lengths, and some research suggests somewhat lower irritation potential. Sodium Laureth Sulfate (SLES) is a different modification. The question isn’t simply “does this contain a sulfate?” but “which surfactants are in the formula, and how do they work together?” A sulfate combined with glucoside and amino acid surfactants in a pH-balanced formula performs very differently from a lone SLS in a high-pH product. The formula matters more than any single ingredient.

Why do some brands not explain their INCI lists?

There’s no legal requirement to translate an INCI list into plain language — only to display it. Brands that explain their ingredients are making a choice to be transparent beyond what the law requires. At Homme, we publish every INCI list with a full plain-language explanation because we believe you should understand what you’re putting on your skin. If a brand won’t tell you what’s in their product in language you can understand, that’s worth considering.

This article is part of Homme’s commitment to ingredient transparency and skin health education. We publish the full INCI list with plain-language explanations for every product in our range — because the ingredient list is the one place on any product that tells you the truth.