“It looks like I’ve put on false eyelashes”: this Typology serum, priced at less than 23 euros, is on constant sale.

In the year 2026, a French serum is taking beauty discussions and bathroom shelves by storm. Typology’s L37 Eyelash and Brow Densifying Serum is the talk of the town. Between repeated stock-outs and a minimalist formula, this low-cost skincare product intrigues as much as it seduces.

A serum that meets a real beauty need

The eyelash care market has been growing strongly for several years. And yet, few products generate such high expectations. Here, the French brand offers a care product designed for weakened lashes and eyebrows that are losing density. The formula contains 96%ingredients of natural origin and is fragrance-free.

This serum is aimed at those who notice increased lash loss after make-up removal. It is also aimed at people whose eyebrows become thinner after waxing. Where some products focus on an immediate cosmetic effect, this one seeks to strengthen the hair over time.

The light texture appeals to many users. There’s no stickiness or visible build-up after application. Thanks to its brush tip, the serum deposits a fine, invisible layer on lashes and brows.

“It looks like I put on false eyelashes”

French manufacturing and streamlined positioning

French manufacturing is one of Typology’s strong points. The brand relies on readable formulations and clearly identified active ingredients. This serum is no exception.

The product is vegan and suitable for all skin types. It has a Yuka rating of 100/100, reinforcing its credibility with composition-conscious consumers. These characteristics match current expectations in everyday beauty routines.

Pea peptides and castor oil at the heart of the L37 formula

The success of this serum is based on a well-chosen combination of densifying active ingredients. The brand features 2% pea peptides. These lysine-rich amino acids help strengthen weakened eyelashes and eyebrows.

Castor oil is one of the star ingredients in home beauty routines. Renowned for nourishing and strengthening hairs, it promotes eyelash growth. It also adds substance to thin eyebrows.

• 2% pea peptides to strengthen weakened hairs
• Castor oil to nourish and promote growth
• Biotinyl-GHK to support collagen synthesis
• Panthenol to limit lash loss
• Fragrance-free formula for sensitive eyes

Active ingredients that act on hair anchoring

The formula also contains Biotinyl-GHK and panthenol. This duo acts on collagen and laminin synthesis. These two elements play a role in anchoring the bulb in the epidermis.

The serum does not color lashes or eyebrows. It is not a mascara or tinted gel. This treatment works discreetly over time to strengthen existing hair.

A beauty phenomenon fuelled by stock-outs

What’s surprising about L37 Eyelash and Brow Serum is how quickly stocks disappear. Out-of-stock periods recur regularly. This rarity fuels curiosity about the product.

In the beauty sector, this type of phenomenon is revealing. When a skincare product costing less than 23 euros stands out against more expensive products, it often meets a specific need. Many people are looking for a simple solution to restore strong lashes without the need for extensions.

Typology’s positioning plays an important role in this success. The brand communicates clearly on its active ingredients and its commitments. For this serum, the message is straightforward: nourish, strengthen and promote the growth of weakened eyelashes and eyebrows.

At €22.90 for 15 ml, L37 Lash and Brow Densifying Serum has established itself as one of the most closely watched skincare products of the moment. Its minimalist formula and renowned ingredients go a long way to explaining its enduring popularity in 2026.

• Typology