What is INCI and how it helps build trust

You can spend months developing a formula, choosing packaging, and refining your brand identity. Yet one of the first things many customers judge is the small ingredient list on the back of the product.

One customer is looking for a favorite ingredient, another is checking for something they'd rather avoid. Either way, that small block of text often plays a bigger role in the buying decision than many brands expect.

Every ingredient on that label has an official INCI name. The system was created so the same ingredient can be identified the same way across cosmetic products, making cosmetic product labels easier to read, compare, and understand wherever they're sold.

If you're building a beauty brand, understanding what is INCI makes those labels much easier to work with. It helps when you're reviewing product documentation, answering customer questions, and explaining your formulations.

Let's take a look at how the INCI system works, how to read ingredient lists, and why clear ingredient communication can strengthen trust in your brand.

Table of Contents

Key Takeaways

INCI gives every cosmetic ingredient one official name, making ingredient lists consistent across brands and markets.
Clear ingredient communication supports product claims and helps customers identify cosmetic ingredients more easily.
Official INCI names keep cosmetic product labels accurate and aligned with labeling requirements in different markets.

What Is INCI?

Every cosmetic product has an ingredient list, and every ingredient on that list has an official INCI name. That's why the names on cosmetic product labels often look different from the ones customers use every day. Once you know how the INCI system works, those ingredient lists start to make a lot more sense.

There are more than 16,000 ingredients with an assigned name to use in the INCI list with new ingredients registered every year. The complete INCI naming list can be found in CD-ROM, book format or as website access provided by the Personal Care Products Council. The Council also oversees and maintains the INCI names list. You do need to register to access it though.

If you would like to search INCI name for free, you can also try the EU inventory of cosmetic ingredients – Cosing. There are several web resources that can help as well, like incidecoder where you can search by the INCI name or common name, and incibeauty website and app, but there you can search only by INCI name.

What Does INCI Stand For?

INCI stands for International Nomenclature of Cosmetic Ingredients. It's the official naming system used for cosmetic ingredients. It gives each ingredient one recognized name that's used across the beauty industry.

The names are assigned by the Personal Care Products Council (PCPC) and become part of the International Cosmetic Ingredient Dictionary. As new cosmetic ingredients are introduced, new INCI names are added, allowing brands around the world to identify the same ingredient in a consistent way.

If you develop or sell cosmetics, you'll quickly become familiar with common INCI names. That knowledge makes conversations with manufacturers, product developers, and customers much more easier.

What Is INCI in Cosmetics?

As you build your beauty brand, you'll notice that the front and back of a product tell two different stories. The front highlights the ingredients your customers recognize, while the back lists the formula using official INCI names.

That gives you the flexibility to communicate in a way that's clear and engaging without changing how your cosmetic ingredients are identified. For, example, you can talk about shea butter or vitamin E on your product page, while the ingredient list uses Butyrospermum Parkii Butter and Tocopherol – the official names used across the beauty industry.

Learning both languages makes product development much easier. You can write product descriptions your customers understand while making sure your ingredient list follows the official INCI naming system.

Why Was The INCI System Created?

For many years, the same cosmetic ingredient could appear under different names depending on the manufacturer, country, or language. That made ingredient lists harder to interpret and created unnecessary confusion for brands, regulators, and customers.

The International Nomenclature Cosmetic Ingredient system was introduced in 1973 to give every cosmetic ingredient one official name. That meant brands, manufacturers, and regulators no longer had to rely on different naming conventions for the same ingredient.

Creating a Universal Language for Cosmetic Ingredients

Launching a cosmetic product often involves more people than customers ever see. Product developers, manufacturers, packaging suppliers, retailers, and regulatory teams all work with the same formula, often in different countries.

Using official INCI ingredients keeps those conversations simple. That way everyone refers to the same ingredient by the same name, reducing confusion during product development and making it easier to compare formulations from different suppliers.

The result is a smoother process for your business. Instead of translating ingredient names between markets or partners, you can focus on developing cosmetic products and bringing them to market.

Helping Customers Make Informed Choices

The ingredient list has become one of the first places customers look when they're comparing beauty products. Some want to find a specific ingredient, others want to understand what makes one formula different from another.

That shift has changed the role of cosmetic product labels. They've become part of how customers evaluate products before they buy.

In fact, 71% of customers are willing to pay more when brands openly share where their ingredients come from and the impact they have. An accurate INCI list gives customers a reliable way to identify cosmetic ingredients and keep all their options on a level playing field.

Supporting Regulatory Compliance Worldwide

Every country has its own national regulations for cosmetics, but one thing stays remarkably consistent – ingredient names. Using official INCI names lets the same formulation move through different regulatory processes without changing the way ingredients are identified.

If you ever plan to expand into new countries, that becomes especially useful. While packaging and product claims may need to be adapted for each market, your INCI list stays the same.

How to Read an INCI Ingredient List

An INCI list tells you more than which cosmetic ingredients are inside a product. Once you know how the list is structured, you can spot the main ingredients and recognize smaller additions.

Ingredients Are Listed in a Specific Order

The first ingredient on an INCI list is always the one used in the highest amount. From there, the list works its way down until it reaches ingredients present at less than 1% of the formula.

That means the top of the list tells you a lot about the product.

For instance, if aloe vera, niacinamide, or glycerin appears near the beginning, it plays a much bigger role in the formula than if it's listed close to the end.

This INCI listing hierarchy is the quickest way to compare formulations.

Understanding the 1% Line

The ingredient list follows one rule for most of the formula and another after the 1% line.

Ingredients present above 1% must appear in descending order of concentration. Once every ingredient below 1% is reached, manufacturers can list the remaining ingredients in any order.

You won't see a line printed on the packaging telling you where the line is, but there are a few useful clues.

Phenoxyethanol, for example, is permitted at a maximum concentration of 1% in cosmetic products under EU rules. If you spot it in an INCI list, the ingredients that follow are also likely to be present at concentrations of 1% or less. Thickening agents such as Xanthan Gum can provide a similar reference point – they're typically used at low levels.

Common Symbols and Labeling Conventions

Not everything on an INCI list is an ingredient name. You might also spot an asterisk (*), a double asterisk (**), or other symbols that point to extra information about the formula.

The symbols themselves aren't part of the International Nomenclature Cosmetic Ingredients. Brands choose to use them to highlight details such as cosmetic ingredients from organic farming or naturally occurring components of essential oils. If a symbol appears on the label, you'll usually find an explanation elsewhere on the packaging.

Plant-based cosmetic ingredients follow another pattern that's useful to recognize. They're typically listed by their Latin botanical name, and followed by the part of the plant used in the formula. For example, Aloe Barbadensis Leaf Juice refers to aloe vera leaf juice, while Lavandula Angustifolia Oil is lavender oil.

Differences Based on Location

Even though all INCI names are standardized, there’s always exceptions to how they’re structured. The names listed on the packaging differ based on country and their applicable administrative institution’s regulations.

One example is Over-The-Counter (OTC) products that are regulated by The FDA (Food & Drug Administration) based on the Federal Food, Drug, and Cosmetic Act (FD&C Act). The requirements for OTC products are that the active ingredients, the ones that have been scientifically tested and proven to address specific skin concerns, need to be stated first. Not only that but you need to indicate their exact percentages.

In the European Union, it’s regulated by the EU’s Cosmetics Regulation (EC) No 1223/2009. Canada and ASEAN countries also have their own rules.

INCI names, however, stay the same across all regions.

Understanding INCI Ingredients Through Real Examples

Reading about INCI is one thing. Seeing everyday ingredient names next to their official INCI names makes the system much easier to remember. After a while, you stop translating every ingredient and start recognizing the names automatically.

Common Ingredient Names vs INCI Names

Customers rarely search for Aqua or Butyrospermum Parkii Butter. They search for water and shea butter. That's why you'll often use common ingredient names in your marketing while your ingredient list follows the International Nomenclature of Cosmetic Ingredients.

Here's how some familiar ingredient names appear in an INCI list:

Common name	INCI
Water	Aqua
Vitamin B3	Niacinamide
Vitamin C	Ascorbic Acid
Vitamin E	Tocopherol
Vitamin A	Retinol
Shea Butter	Butyrospermum Parkii Butter
Lavender Oil	Lavandula Angustifolia Oil

So now that we know how to read an INCI list, let’s analyze one. A good example is Selfnamed’s Softening Beard Oil, one of many products in the face care catalog.

This information comes from incidecoder.com. As you can see, the softening beard oil truly does what it says – there are a lot of softening ingredients. Hemp oil here is an active ingredient, this is something incidecoder.com doesn't state. Compared to emollients below, Cannabis Sativa Seed Oil is the one doing most of the work in this formula.

All INCI names are correct. All asterisks indicate the organic and natural ingredients. Perfuming ingredients can be natural or synthetic. Natural ones usually come from plants like lavender, basil, citrus fruits, lemongrass and others.

To explore the certified formulas Selfnamed offers, visit the formulas and ingredients page.

Deeply Hydrating Skincare Ingredients INCI Names

Some INCI names appear so often that you'll start recognizing them without thinking twice. That's especially true for hydrating ingredients, which are used across cleansers, serums, creams, and masks.

Here are some of the most common deeply hydrating skincare ingredients INCI names and their everyday names.

Common name	INCI	Primary benefit
Glycerine	Glycerin	Attracts moisture
Hyaluronic Acid	Sodium Hyaluronate	Helps retain moisture
Pro-Vitamin B5	Panthenol	Supports hydration
Aloe Vera	Aloe Barbadensis Leaf Juice	Soothes and hydrates
Carbamide	Urea	Softens and hydrates
Honey	Mel	Attracts and holds moisture

Cruelty-Free Skincare Ingredients INCI Names

Many people assume they can tell whether a product is cruelty-free by reading the INCI list. In reality, cruelty-free status isn't something an INCI name can tell you.

Take Glycerin as an example. You'll find the same INCI name on both cruelty-free and non-cruelty-free products. The same goes for Niacinamide, Tocopherol, and thousands of other cosmetic ingredients. The International Cosmetic Ingredient Dictionary exists for ingredient identification. It standardizes ingredient names, not product claims.

If cruelty-free is part of your brand, your INCI list is only one piece of the picture. Customers also look for certification logos, your animal testing policy, and clear information about how your products are developed.

That's where third-party certification comes in. "Cruelty-free" has no single legal definition, so an independent logo is what turns the claim into something customers can actually trust. A few worth knowing:

Leaping Bunny is widely considered the gold standard. Brands commit to no animal testing at any stage, open their supplier lists to independent audits, and recommit every year.
PETA's Beauty Without Bunnies is free and easier to join, based on a signed pledge rather than audits. It has broad reach and works well as a starting point for smaller brands.
Certified Vegan makes a different promise altogether: no animal-derived ingredients. Cruelty-free and vegan aren't the same thing, which is why many brands carry both.

Here's why it matters. A line like "not tested on animals" is unregulated, and customers know it. A recognized logo, backed by a real audit trail, does the convincing for you, and it signals where your brand stands before anyone reads a single ingredient on the label.

So now that we know how to read an INCI list, let’s analyze one. A good example is Selfnamed’s Softening Beard Oil, one of many products in the face care catalog.

This information comes from incidecoder.com. As you can see, the softening beard oil truly does what it says – there are a lot of softening ingredients. Hemp oil here is an active ingredient, this is something incidecoder.com doesn't state. Compared to emollients below, Cannabis Sativa Seed Oil is the one doing most of the work in this formula.

All INCI names are correct. All asterisks indicate the organic and natural ingredients. Perfuming ingredients can be natural or synthetic. Natural ones usually come from plants like lavender, basil, citrus fruits, lemongrass and others.

To explore the certified formulas Selfnamed offers, visit the formulas and ingredients page.

How INCI Supports Ingredient Transparency

Your product story doesn't end with the product description. It continues in the ingredient list.

Customers compare formulas, search for familiar ingredients, and look for products that fit their personal preferences. The International Nomenclature of Cosmetic Ingredients gives every brand a consistent way to present that information, turning the ingredient list into another opportunity to build credibility.

Why Customers Pay More Attention to Ingredients

Skincare has become much more ingredient-focused over the past few years. Customers no longer shop for "anti-aging" or "hydrating" products alone. Many already know the cosmetic ingredients they're looking for.

Ingredient lists have become a way to check whether a product delivers what it promises. If a serum highlights ceramides, peptides, or vitamin C on the front, many customers turn the product around to see where those ingredients appear in the formula. Industry research shows growing interest in ingredient safety, effectiveness, and transparency, especially among younger shoppers.

For your brand, that makes clear ingredient communication just as important as the product claims themselves.

The Link Between INCI and Clean Beauty Claims

Two products can both describe themselves as "clean beauty" and still have very different formulations. That's because the term reflects a brand's philosophy rather than one universal definition.

The INCI list gives your customers something they can compare. It shows the ingredients that make up the formula using the International Nomenclature of Cosmetic Ingredients, regardless of how the product is marketed. While a clean beauty claim explains your approach, the ingredient list shows exactly what's inside the product.

That's why the two work best together. Your marketing explains why you chose certain ingredients, while the INCI list documents what they are. When both tell the same story, your product claims become much easier to support.

In the European Union, cosmetic claims must be truthful, supported by adequate evidence, and presented in a way that doesn't mislead customers. An accurate ingredient list is one part of meeting that expectation.

How to Use INCI to Build Trust in Your Beauty Brand

Your INCI list is often the most objective part of your product page. It doesn't make promises or highlight benefits. It simply shows customers what's inside the formula. When it's accurate, complete, and easy to find, it quietly reinforces everything else your brand is saying.

Transparency as a Competitive Advantage

Customers can usually tell when an ingredient list has been written properly. Official INCI names belong in the ingredient list, while marketing language belongs in your product description. Mixing the two creates confusion and can make your brand look less credible.

An ingredient list only works when it's complete. Customers notice if a product highlights a handful of hero ingredients but leaves out the rest of the formula. Preservatives, emulsifiers, and other supporting cosmetic ingredients are just as much a part of the product as the ones featured in your marketing.

The same principle applies online. Before adding a product to their cart, many people scroll down to the ingredient list. Making it easy to find shows that you're comfortable putting your formulation front and center.

Making Ingredient Lists Easy to Understand

Most customers won't recognize every INCI name, and that's perfectly normal. What they appreciate is a brand that helps them connect official ingredient names with the ones they already know.

A simple explanation such as Niacinamide (Vitamin B3) or Butyrospermum Parkii Butter (Shea Butter) makes your ingredient list much more approachable without changing the official naming required for cosmetics.

The same approach works well beyond the product page. Ingredient guides, FAQs, and educational content all help customers identify cosmetic ingredients and understand why they're included in your formulations. Over time, that knowledge becomes part of your brand experience.

INCI as a Foundation for Long-Term Brand Credibility

The more products you launch, the more valuable consistency becomes. A shampoo, face serum, and body lotion may solve different customer needs, but they should all follow the same approach to ingredient naming, labeling, and product information.

Over time, that consistency makes it easier to:

launch new cosmetic products without reinventing your labeling process;
keep cosmetic product labels aligned across your entire collection;
work with manufacturers, retailers, and distributors using the same INCI names;
prepare products for different markets while meeting national regulations;
keep your product information organized as your portfolio grows.

Cosmetic Ingredients Speak for Every Formula

An INCI list will never be the most eye-catching part of your packaging, but it can become one of the most valuable.

It's where your formulations speak for themselves. Clear INCI names, complete ingredient lists, and straightforward explanations help customers identify cosmetic ingredients and better understand the products they're choosing. They also make it easier to compare products, answer common questions, and connect your product claims with the formula itself.

The more consistent that experience is across your cosmetic products, the stronger your brand becomes over time.

Whether you're launching your first product or expanding an established collection, clear ingredient communication helps every new launch feel like part of the same brand story.

Frequently Asked Questions

INCI is simply the official naming system for cosmetic ingredients. If you've ever wondered why water appears as Aqua on a label, that's INCI at work.
Every cosmetic product has an INCI list. It uses official INCI names instead of everyday names, so the same ingredient is labeled consistently from one product to the next.
The goal is consistency. One ingredient should have one name, making it easier to work with cosmetics, prepare labels, and compare products.
The International Cosmetic Ingredient Dictionary is the official source for INCI names. Many beauty professionals also use the European Commission's CosIng database to look up cosmetic ingredients.
Clear INCI names keep ingredient information consistent across your products. They also make it easier for customers to understand what's in the formula and compare products with confidence.

What Is INCI and How Does It Build Customer Trust