Ingredients name in the Cosmetic World

If you are getting into skincare, haircare, or cosmetic formulation, you will come across the term INCI name very quickly.

At first, INCI names can look confusing. A product label might say Aqua, Glyceryl Stearate, Cetearyl Alcohol, Tocopherol, or Sodium Hyaluronate, while the ingredient supplier may use completely different names for the same materials.

So what exactly are INCI names, and why are they important?

Whether you are making your first face cream, shampoo, conditioner, body butter, serum, or makeup product, understanding INCI names is one of the basics worth learning early.

What does INCI mean?

INCI stands for International Nomenclature Cosmetic Ingredient.

An INCI name is the standardized name used to identify an ingredient in a cosmetic product. These names are used internationally to make it easier to identify cosmetic ingredients, regardless of the language used in a particular country.

For example, you might buy an ingredient called vitamin E from a supplier. The supplier could describe it as:

• Vitamin E

• Natural Vitamin E

• Mixed Tocopherols

• Vitamin E T-50

• Tocopherol

The exact material and specification matter, but when you are preparing a cosmetic ingredient list, the INCI name may be something such as Tocopherol.

This is why it is important not to simply copy the commercial name from the supplier's website onto your product label.

Why are INCI names important?

INCI names are useful for several reasons.

The most obvious one is ingredient labeling. Consumers need to be able to see what is in a cosmetic product, and standardized ingredient names make this possible.

They are also important for formulators.

Imagine that you are developing a moisturizer and your formula contains five different raw materials. Your supplier might call them:

• Emulsifying Wax

• Vitamin E

• Vegetable Glycerin

• Hyaluronic Acid

• Preservative

These are useful descriptions when you are buying ingredients, but they are not necessarily the names you would use in your finished ingredient declaration.

Knowing the INCI names helps you:

• Read ingredient lists

• Understand supplier documentation

• Compare raw materials

• Build accurate formulations

• Communicate with manufacturers and suppliers

• Prepare cosmetic labels

• Research ingredients more effectively

It also becomes much easier to understand what you are actually putting into a formula.

INCI name vs. common name

One of the first things beginners need to understand is that a common name and an INCI name are not always the same thing.

Take glycerin as an example.

Most formulators simply call it glycerin when working on a formula. Its INCI name is also commonly listed as Glycerin, so this one is straightforward.

But other ingredients are less obvious.

For example, shea butter is commonly called shea butter, while its INCI name is:

Butyrospermum Parkii Butter

Jojoba oil is commonly called jojoba oil, while its INCI name is:

Simmondsia Chinensis Seed Oil

Sweet almond oil is:

Prunus Amygdalus Dulcis Oil

Once you start formulating, you will quickly notice this pattern.

The ingredient can have a familiar everyday name, a supplier's trade name, and an INCI name.

These three names are not necessarily interchangeable.

Trade names can be confusing

This is especially important when you buy cosmetic ingredients from suppliers.

A supplier might sell an emulsifier under a brand name such as "ABC Emulsifier" or "Natural Cream Wax." That name tells you what the supplier calls the raw material, but it does not necessarily tell you the complete INCI declaration.

A commercial ingredient may contain several substances.

For example, an emulsifying blend could contain:

• Cetearyl Alcohol

• Glyceryl Stearate

• another emulsifier

• stabilizers or other components

If you simply write the trade name on your formula or label, you may miss some of the actual ingredients.

This is why the supplier's technical documentation is so important.

When purchasing a raw material, look for documents such as the:

• Technical Data Sheet (TDS)

• Specification Sheet

• Safety Data Sheet (SDS)

• Certificate of Analysis (COA)

• INCI declaration

The INCI information should come from the supplier or manufacturer of the raw material whenever possible.

Where can you find the INCI name?

Your first source should usually be the supplier of the ingredient.

Most reputable cosmetic raw material suppliers provide the INCI name on the product page or in the technical documentation.

For example, if you purchase an oil, don't rely only on the name printed on the bottle.

Instead of assuming that "Rosehip Oil" is the correct label name, check the supplier's documentation. You may find an INCI name such as:

Rosa Canina Seed Oil

or another botanical name depending on the exact raw material.

This distinction matters because different species, plant parts, extraction methods, and blends can have different ingredient declarations.

Botanical ingredients and Latin names

Plant-based ingredients are where INCI names can become particularly interesting.

Many botanical ingredients use the scientific botanical name of the plant.

For example:

Aloe Barbadensis Leaf Juice

is commonly known as aloe vera juice.

Camellia Sinensis Leaf Extract

is green tea extract.

Lavandula Angustifolia Oil

is commonly known as lavender oil.

This is one reason formulators become familiar with botanical Latin names over time.

You don't need to memorize hundreds of them when you are starting. Keep your supplier documentation organized and check each ingredient as you work.

Essential oils have INCI names too

Essential oils are another area where beginners sometimes get confused.

You might purchase an ingredient called "Lavender Essential Oil."

The INCI declaration may be:

Lavandula Angustifolia Oil

However, essential oils can also contain naturally occurring fragrance constituents that may need to be declared separately depending on the market and the concentration in the finished product.

For example, Linalool, Limonene, or Citral may appear in the ingredient declaration when applicable.

This is one reason why formulating is more than simply copying the names from the bottles.

You need to understand the raw material documentation and the labeling requirements that apply to the market where you intend to sell the product.

What about water?

Water is probably the easiest INCI name to remember.

On a cosmetic ingredient list, water is generally listed as:

Aqua

You will see Aqua on countless skincare, haircare, and cosmetic labels.

This is a good example of why reading ingredient lists can initially feel strange. You may know exactly what water is, but the label uses the standardized ingredient name.

Do ingredients have to be listed in a particular order?

Yes.

Ingredient lists generally follow rules about the order in which ingredients are declared.

In many cosmetic labeling systems, ingredients present at higher concentrations are listed before ingredients present at lower concentrations, with specific rules and exceptions applying to certain ingredients and concentration ranges.

This means that the order of ingredients can sometimes give you useful information about a product.

For example, if a moisturizer begins with:

Aqua, Glycerin, Caprylic/Capric Triglyceride...

you know that these ingredients make up a significant part of the formula.

However, don't assume that you can determine the exact percentages from the ingredient list. You generally cannot.

Once ingredients reach relatively low concentrations, the labeling rules can allow more flexibility in their ordering, depending on the applicable regulations.

INCI names are not a substitute for formulation knowledge

One common beginner mistake is to think that learning INCI names means learning how to formulate.

It doesn't.

Knowing that an ingredient is called Cetearyl Alcohol is useful, but you also need to understand what cetearyl alcohol actually does in a formula.

Is it an emulsifier?

A thickener?

An emollient?

A consistency modifier?

How much should you use?

What happens if you use too much?

Does it work with your chosen emulsifier?

How does it affect the skin feel?

These are formulation questions, not naming questions.

The INCI name tells you what the ingredient is called. It doesn't automatically tell you how to formulate with it.

A simple example

Let's say you want to make a basic body lotion.

Your raw materials might include:

• Water

• Glycerin

• Sunflower oil

• Emulsifier

• Cetearyl alcohol

• Preservative

• Vitamin E

Your supplier may give you commercial names for each raw material.

Before creating your final ingredient declaration, you would identify the appropriate INCI names for the actual materials you purchased.

Your list could contain names such as:

Aqua, Glycerin, Helianthus Annuus Seed Oil, Cetearyl Alcohol, Tocopherol...

The exact declaration will depend on the actual raw materials used, their composition, concentrations, and the applicable labeling rules.

This is why a good formulation record should contain both the supplier/trade name and the INCI name.

Keep an ingredient database from day one

If you are serious about developing cosmetics, I strongly recommend creating your own ingredient database.

It doesn't need to be complicated.

A spreadsheet is enough when you're starting.

You could create columns for:

This simple habit can save you a lot of time later.

As your ingredient collection grows, you will have dozens or even hundreds of raw materials. Trying to remember everything from memory quickly becomes impossible.

Don't guess an INCI name

This is probably the most important piece of advice for beginners:

Don't guess.

If you are unsure about an ingredient's INCI name, check the supplier's documentation.

This is particularly important with:

• Preservatives

• Fragrance oils

• Essential oils

• Botanical extracts

• Emulsifying blends

• Surfactant blends

• Active ingredients

• Pre-dissolved or diluted ingredients

• Proprietary ingredients

• Multi-ingredient raw materials

Two products that sound similar can have completely different compositions.

For example, "hyaluronic acid" could refer to different forms or molecular weights of hyaluronic acid, and a supplier may sell a premixed solution rather than the pure raw material.

The INCI declaration for the raw material will depend on what is actually in that material.

INCI names and regulations

If you are making cosmetics for yourself, learning INCI names is mainly about understanding your ingredients.

If you plan to sell cosmetics, the subject becomes much more important.

Cosmetic labeling requirements vary between markets. The European Union, United States, United Kingdom, and other countries do not necessarily have identical requirements.

For example, if you are selling a product in the EU, you need to consider the relevant EU cosmetic legislation and labeling requirements rather than simply copying an ingredient list from a product sold somewhere else.

There can also be additional requirements concerning allergens, fragrances, colorants, preservatives, nanomaterials, and other ingredients.

So don't treat an online ingredient list as a legal template.

A formula that is technically correct can still require additional work before it is ready for commercial sale.

What beginners should focus on first

When you are starting your formulation journey, don't try to memorize every INCI name you see.

Instead, learn to work with them.

Start by becoming familiar with the ingredients you use regularly.

For example:

• Aqua — water

• Glycerin — humectant

• Simmondsia Chinensis Seed Oil — jojoba oil

• Butyrospermum Parkii Butter — shea butter

• Helianthus Annuus Seed Oil — sunflower seed oil

• Tocopherol — vitamin E

• Cetearyl Alcohol — fatty alcohol used for consistency and formulation properties

• Sodium Hyaluronate — a form of hyaluronic acid used in many skincare formulations

Then start looking at complete ingredient lists on real cosmetic products.

Try to identify the ingredients you recognize.

Over time, you'll notice that the same INCI names appear again and again.

A good formulator learns to read beyond the label

INCI names are one part of becoming a good cosmetic formulator.

The next step is learning what those ingredients actually do.

You want to be able to look at a formula and think:

"That's the humectant."

"Those are the emollients."

"That's the emulsifier."

"That's the thickener."

"That's the preservative system."

"That's the active."

"Those are the fragrance ingredients."

Eventually, an ingredient list stops looking like a strange collection of scientific words and starts telling you a story about how the product was made.

That is when formulation starts becoming much more interesting.

Final thoughts

INCI names can seem intimidating when you first start working with cosmetic ingredients, but they become much easier with practice.

You don't need to memorize hundreds of names.

Instead, get into the habit of checking your raw material documentation, recording the correct INCI name for every ingredient you purchase, and learning what each ingredient actually contributes to your formula.

Most importantly, remember that an INCI name is not the same thing as a formulation. Knowing the name of an ingredient is only the beginning. Understanding its function, compatibility, recommended usage level, stability, processing requirements, and regulatory considerations is what allows you to formulate a safe and effective product.

If you are planning to make skincare, haircare, or cosmetic products professionally, building this knowledge from the beginning will make everything that comes later much easier.

And before long, those complicated-looking ingredient lists won't look complicated anymore. They'll just look like formulas.