Lash serum ingredients

Centella Asiatica, Licorice Root and Houttuynia Cordata

Cica, dipotassium glycyrrhizate and eoseongcho · Soothing botanicals

Written by the Re:Cosm team · Last reviewed September 23, 2026 · Cosmetic information, not medical advice

In short: Three calming ingredients from Korean skincare that keep the lash line comfortable with nightly use: centella asiatica, dipotassium glycyrrhizate from licorice root, and houttuynia cordata.

Why a lash serum needs soothing ingredients

The skin along the lash line is among the thinnest on the body, and a lash serum is applied there every night, often by people who also wear contact lenses, extensions or eye makeup. Anything that touches that skin daily should be gentle. The job of these three ingredients is comfort: they keep the lash line calm so a nightly routine is easy to keep up. None of them changes lash growth.

Centella asiatica (cica)

Centella asiatica is a small plant from the parsley family, used for centuries in traditional medicine across Asia and known in skincare as cica, tiger grass or gotu kola. Its extract contains triterpenoids, chiefly madecassoside, asiaticoside, madecassic acid and asiatic acid. Korean skincare made it famous in the last decade, and it is now one of the most recognised soothing ingredients in the world.

Dipotassium glycyrrhizate (licorice root)

Dipotassium glycyrrhizate is the potassium salt of glycyrrhizic acid, the main compound in licorice root. As a salt it dissolves cleanly in water-based gels. It is a staple of formulas for sensitive, reactive skin, used to keep skin comfortable and to help reduce the look of redness along the lash line.

Houttuynia cordata (eoseongcho)

Houttuynia cordata is a leafy plant native to East and Southeast Asia, known in Korea as eoseongcho and sometimes called fish mint for the smell of the fresh herb. It has become a signature ingredient in Korean toners and serums for sensitive skin. Cosmetic extracts are refined and used at low levels, so there is no noticeable scent, and Re:Cosm is fragrance-free.

How they work together

Each of the three has a different origin and a different set of compounds, and formulators often combine them rather than relying on one. In Re:Cosm they sit alongside the conditioning ingredients, panthenol, biotin and cationic hyaluronic acid, and the Capixyl™ peptide complex. They are one of the reasons the formula reflects its Korean origin: it is made in Korea by Kolmar Korea.

Where it sits in the Re:Cosm formula

Re:Cosm Lash Conditioning Serum has 29 ingredients, and this page covers one part of that formula: a prostaglandin-free, fragrance-free and oil-free peptide serum made in Korea by Kolmar Korea. Every ingredient and the job it does is decoded on the lash serum ingredients guide, and the full label is on the product page.

Common questions

What is cica in skincare?

Cica is the common name for centella asiatica extract, a soothing botanical used widely in Korean skincare.

Is dipotassium glycyrrhizate safe around the eyes?

It is used specifically as a soothing agent for sensitive skin and is well tolerated at cosmetic concentrations.

What is eoseongcho?

The Korean name for houttuynia cordata, a calming botanical common in Korean skincare.

Do these ingredients help lashes grow?

No. Their role is to keep the lash line calm and comfortable with nightly use.

Other ingredients in the formula

Also worth reading: lash serum ingredients to avoid and what prostaglandin-free means.

Sources and standards

Ingredient facts are checked against our published formula and the sources below. We describe how lashes look and feel, never growth: that is a drug claim, and our serum is a cosmetic.

See the whole formula

Prostaglandin-free. Fragrance-free. Oil-free. Every ingredient published.

View Lash Conditioning Serum