
COSNORI Long Active Eyelash Serum: What It Is, What's Inside, and Who It's For
A water-based, oil-free serum formulated with peptides and Centella Asiatica to nourish lashes and brows from root to tip.
The COSNORI Long Active Eyelash Serum is a fast-absorbing, unscented serum designed for daily use on lashes, brows, and hairline. It layers peptides, sodium hyaluronate, and Centella Asiatica Extract to nourish and strengthen, and the brand describes it as vegan, oil-free, and suitable for use over eyelash extensions.
Who This Is For
The COSNORI Long Active Eyelash Serum was built for anyone who wants to take better care of their lashes and brows — but it goes further than a typical lash serum. Because it's oil-free and water-based, it works for people who wear eyelash extensions (the brand says the formula won't affect lash adhesive). If you are pregnant, breastfeeding, recovering from a procedure or using prescription treatments, check the brand's current guidance and ask your doctor before use.

Sensitive eyes are addressed directly: the product is flagged as good for sensitive skin, it's unscented, and the brand recommends a patch test for first-time users with reactive eyes. If you've struggled to find a lash serum that doesn't sting or irritate, this formulation is worth considering.
What It Is and How It Feels
This is a serum-texture product — lightweight, watery, and fast-absorbing. There's no oil, no fragrance, and nothing that would sit heavily on a lash line or transfer onto contact lenses or extension adhesive. On the skin around the eye, it settles quickly and doesn't leave a film.
The applicator is specific to the format: a C-curl brush tip for the lash line and a ball tip for distributing product along the roots and brow hairs. That dual-tip design matters because it lets you work precisely without transferring excess product onto the eyelid itself.
The Ingredients That Matter
Centella Asiatica Extract is a calming botanical used across Korean skincare for its soothing properties. Here it appears in the serum alongside Portulaca Oleracea Extract, which also sits in the first twelve listed ingredients — both contribute to a formula that's designed not to aggravate the sensitive skin around the eyes.
Sodium Hyaluronate is a hydrating ingredient that helps maintain moisture in the lash and brow area, keeping the hair fiber and the surrounding follicle skin from drying out.




