Often Overlooked but Important
What holds a formulation together.
A cream contains more than its highlighted active ingredients. Other components support cleansing, consistency, shelf life and pleasant application.
Water & Solvents
INCI examples:
Aqua, Propanediol, Alcohol
Water forms the basis of many creams and serums. Solvents help dissolve other components of a formulation. Some also serve additional functions, such as helping to retain moisture.
Surfactants
INCI examples:
Coco-Glucoside, Cocamidopropyl Betaine
Surfactants allow oils and dirt to be washed away with water. They are found, for example, in cleansing gels, shampoos and shower products. The overall combination of surfactants influences how a product cleanses.
Emulsifiers & Thickeners
INCI examples:
Glyceryl Stearate, Cetearyl Alcohol,
Xanthan Gum
Emulsifiers combine the water and oil phases of a cream. Texture-enhancing ingredients affect its thickness and how it spreads.
Fatty alcohols such as cetearyl alcohol are not the same as ethanol. They are used, among other things, to create texture and help skin feel supple.
Silicones & Film-Forming Ingredients
INCI example: Dimethicone
Silicones and other film-formers influence spreadability, smoothness and how a product feels on skin or hair. They are also used in make-up. Their presence alone does not make a product either good or bad.
Preservatives
INCI examples:
Phenoxyethanol, Sodium Benzoate,
Potassium Sorbate
Preservatives help protect products against the growth of unwanted microorganisms. Formulations containing water in particular need suitable microbiological protection.
“Preservative-free” is therefore not, by itself, a measure of quality.
Fragrance Ingredients & Essential Oils
INCI examples:
Parfum, Limonene, Linalool
Fragrance ingredients give a product its scent. Essential oils can also provide fragrant components. If you have a known fragrance allergy, checking the complete ingredients list is particularly important.
Natural origin does not automatically mean that an ingredient is suitable for every skin type.
Pigments & Powder Ingredients
INCI examples:
CI 77491, CI 77492, CI 77499,
Mica, Silica
Pigments give colour to decorative cosmetics. Other powder ingredients influence shine, texture and finish. CI numbers are used to identify colourants.
pH Adjusters & Stabilisers
INCI examples:
Citric Acid, Sodium Hydroxide,
Disodium EDTA
These ingredients help adjust pH or keep the formulation stable. The presence of an acid in an INCI list does not automatically make the product an exfoliant.