This dye is commonly found in makeup because it imparts a vivid color. Some types of this dye change color based on pH level and interaction with moisture:

Your skin has a natural pH of around 4.5 - 5.5.

According to the FDA, CI 45410 is not permitted for use in eye products.

Red 27 is a flourescein dye and commonly used as a fluorescent tracer in medicine.

Learn more about CI 45410

CI 77491

Cosmetic Colorant

Ci 77491 is also hydrated iron III oxide. It's sole purpose is to give a red/pink hue to products.

Iron III oxides are classified as inorganic chemicals for coloring.

Synthetically created Ci 77491 is considered safer than those naturally found. This is because the synthetically created version may contain less impurities. Iron oxides are generally non-toxic and non-allergenic.

Learn more about CI 77491

Diisostearyl Malate

Emollient, Skin Conditioning

Diisostearyl Malate is an emollient and most often used in lip products. It comes from isostearyl alcohol, a fatty acid, and malic acid, an AHA.

As an emollient, Diisostearyl Malate helps create a thin film on your skin to trap moisture in. This helps keep your skin soft and smooth.

Disteardimonium Hectorite

Stabilising

Disteardimonium Hectorite comes from the clay mineral named hectorite. It is used to add thickness to a product.

It can also help stabilize a product by helping to disperse other ingredients.

Hectorite is a rare, white clay mineral.

Learn more about Disteardimonium Hectorite

Hydrogenated Polyisobutene

Emollient, Skin Conditioning

Hydrogenated Polyisobutene is a synthetic polymer. Polymers are compounds with high molecular weight. Hydrogenated Polyisobutene is an emollient and texture enhancer.

In one study, Hydrogenated Polyisobutene showed better skin hydration levels than Caprylic/Capric Triglyceride. As an emollient, it helps keep your skin soft and hydrated by trapping moisture in.

Hydrogenated Polyisobutene is often used as a mineral oil replacement.

Learn more about Hydrogenated Polyisobutene

Limonene

Perfuming, Solvent

Limonene is a fragrance that adds scent and taste to a formulation.

It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".

Limonene acts as an antioxidant, meaning it helps neutralize free radicals.

When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.

The term 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term. For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance.

Learn more about Limonene

Microcrystalline Wax

Emulsion Stabilising

Microcrystalline Wax is created by de-oiling petroleum. It is highly refined and purified before being added to cosmetics.

Microcrystalline Wax is used to enhance the texture and create even consistency. It helps stabilize a product by preventing ingredients from separating.

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Antioxidant

Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.

It is used to help stabilize other antioxidants or prevent the color from changing in a product.

As an antioxidant, it helps fight free-radical molecules. Free-radical molecules are capable of damaging our cells and other genetic material. Thus, antioxidants may reduce the signs of aging.

This ingredient is oil-soluble.

Learn more about Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate

Propylene Carbonate

Solvent

This ingredient is a solvent. It helps dissolve active ingredients and alter the texture of products.

Propylene Carbonate is commonly used in makeup and with clay, such as montmorillonite or bentonite.

Studies show this ingredient to be safe for cosmetics. When it is undiluted, it can cause skin irritation. (It is always diluted in skincare and makeup). This ingredient is water-soluble.

Propylene Carbonate is created from propylene glycol and carbonic acid.

Learn more about Propylene Carbonate