New: A treatment designed for rosacea-prone skin

New: A treatment designed for rosacea-prone skin

By edit
Face care
By concern
Stage of skin aging
Body care
Skin diagnostic
All Topics
Composition d'un sérum cils et sourcils.

What is a lash and brow serum composed of?

Eyelash and eyebrow serums are increasingly prevalent in the market and are experiencing real success... But what are these growth-boosting serums made of? Typology decrypts for you the ingredients generally found in these types of treatments.

The components typically found in eyelash/eyebrow serums.

Eyelash and eyebrow serums are most often direct aqueous or emulsified gels (with a majority aqueous phase and a minority oily phase). They contain various categories of ingredients:

  • The solvent : Most often listed first on the INCI list, thewater (INCI name: "Aqua (Water)") is the most common solvent in eyelash and eyebrow serums. It dissolves the other compounds present in the formula.

  • Gelling Agents: The consistent texture is provided to eyelash and eyebrow serums via texturizing agents, which are most often polymers. There are several types, such as sclerotium gum (INCI name: "Sclerotium Gum") derived from a fungus of the Sclerotium genus, the xanthan gum (INCI name: "Xanthan Gum"), a mix of natural sugar polymers produced by biotechnology, or even tara gum (INCI name: "Caesalpinia Spinosa Gum"), a natural polysaccharide derived from the endosperm of the tara tree seed.

  • The active ingredients: Generally, those present in eyelash and eyebrow serums are fortifying and nourishing (ex : castor oil, pea peptides, panthenol, biotinoyl-GHK...). They stimulate, strengthen and densify the cells of the eyelashes and eyebrows, while helping to maintain their good health.

  • Humectant Compounds: The humectant property of an ingredient relies on its ability to retain water molecules due to its hygroscopic power (strong affinity for water). On the market, the potential humectant compounds present in an eyelash and eyebrow serum are the glycerin, propylene glycol, polyethylene glycols (PEGs), or even the pentylene glycol. As a reminder, as a precautionary principle, Typology excludes PEGs and propylene glycol from its formulas. The eyelash and eyebrow serum presented below contains vegetable glycerin.

  • Fatty substances: Some eyelash/eyebrow serums contain vegetable oils to nourish these hair follicles. The eyelash serum from Typology contains vegetable castor oil (INCI name: "Ricinus Communis (Castor) Seed Oil").

  • Emulsifiers: The blending of fatty substances with water is made possible by the presence of surfactants, which disperse oil droplets in the aqueous solution to form a stable emulsion. For instance, in the eyelash serum, the surfactants used are dioctyl oxide (INCI name: "Dicaprylyl Ether"), lauryl glucoside, polyglyceryl-6 laurate, sodium steroyl glutamate, as well as glyceryl caprylate (INCI name: "Glyceryl Caprylate"). These are gentle and do not cause eye irritations.

  • Preservatives: The lash/brow serum is typically a gel water-based, making it susceptible to bacterial growth. In response to this, it is essential to incorporate preservatives to maintain the product's effectiveness and safety. However, be aware that some lash/brow serums contain phenoxyethanol. This synthetic preservative, known by the acronym EGPhE, is increasingly controversial. Indeed, this compound can cause skin allergies, neurological disorders, as well as effects on reproduction.

Note : There are other types of ingredients sometimes present in eyelash/eyebrow serums such as pigments, to provide coloration to the product.

Decoding the ingredient list of Typology's eyelash & eyebrow serum.

Based on pea peptides and castor oil, this treatment contains 96% naturally derived ingredients. It nourishes, strengthens, and promotes the growth of eyelashes and eyebrows. Untinted, it is applied preferably in the evening, after removing makeup and cleansing the face on clean, dry skin. If you apply it in the morning, wait a few minutes before putting on your mascara and eyebrow pencil, allowing the treatment to fully penetrate the hair follicles.

INCI NameOriginFunction(s)
Aqua (Water)/Base Substance
Ricinus Communis (Castor) Seed OilPlant-basedActive Ingredient (Castor Vegetable Oil)
Dicaprylyl EtherPlant-based?Emulsifying Agent
Pisum Sativum (Pea) PeptidePlant-basedActive Ingredient (Pea Peptides)
GlycerinPlant-based (derived from rapeseed, corn, and sunflower oil)Solvent, humectant
Lauryl GlucosidePlant-based?Surfactant
Polyglyceryl-6 LauratePlant-based?Emulsifying Agent
Sodium Stearoyl GlutamatePlant-based?Emulsifying Agent
Glyceryl CaprylatePlant-based?Emulsifying Agent
Sclerotium GumMicrobiological (produced by the Sclerotium rolfissii bacterium)Gelling Agent
Xanthan GumPlant-based (derived from corn sugar)Gelling Agent
Myristyl GlucosidePlant-based?Cleansing Agent
Leuconostoc/Radish Root Ferment FiltratePlant/Microbiological (produced by the Leuconostoc bacterium)Antimicrobial (radish ferment)
PanthenolSyntheticActive Ingredient (Pro-Vitamin B5)
Sodium HydroxideInorganicpH Regulator
TocopherolPlant-based (extraction from vegetable oils)Preservative
Biotinoyl Tripeptide-1SyntheticActive Ingredient
Citric AcidPlant-based (corn glucose syrup and sugar from sugar beets)pH Regulator


Understand your skin
and its complex needs.

Go further: