Ruminae Keratin Lash Serum for Lash Lifts & Extensions — 0.3 fl oz, Prostaglandin-Free Keratin Conditioner

Ruminae Keratin Lash Serum is a prostaglandin-free, keratin-rich conditioner formulated to help restore strength, flexibility and visible fullness to lashes and brows after lifts, perms, extensions or over-processing.

Whether you’ve just had a lash lift, removed extensions, or noticed brittle lashes from heavy mascara and chemical treatments, this lightweight Korean serum blends keratin with PDRN, EGF, peptides and amino acids to support healthier-looking lash structure and surface texture. The formula is designed for daily use along the lash line and on brows, delivering concentrated conditioning without prostaglandin analogs—suitable for people with sensitive eyes seeking a recovery-focused product.

How does Ruminae Keratin Lash Serum help lashes that were weakened by extensions?

This serum focuses on strengthening and conditioning the lash shaft after adhesive stress or mechanical wear from extensions. It helps smooth the hair cuticle and improve manageability so lashes look less frayed and more uniform in appearance.

• Keratin replenishes structural proteins for improved lash texture.
• PDRN and EGF help support cellular environments around the follicle area.
• Peptides and amino acids provide targeted nourishment to brittle ends.
• Non-oily, lightweight formula avoids weakening extension glue if used carefully.

Can I use this serum right after a lash lift or perm?

The serum is formulated as a post-service conditioner to soothe and hydrate lashes following lifting or perming. Applied as directed, it helps restore softness and reduce roughness on the hair surface while maintaining the lift’s shape.

• Apply once lashes have returned to room temperature after the service.
• Use a light layer at root-to-tip to avoid weighing the lift down.
• Suitable for daily evening application to replenish moisture.
• Prostaglandin-free for reduced irritation risk around delicate eyes.

What ingredients are key in this formula and what do they do?

Ruminae pairs structural proteins with recovery-supporting bioactive compounds to balance conditioning and resilience. Each class of ingredient addresses a specific aspect of lash repair without heavy oils that can clog the lash line.

• Keratin: reinforces hair structure and improves surface smoothness.
• PDRN & EGF: ingredients chosen to support recovery-focused skin and follicle environments.
• Peptides & amino acids: help nourish and support visibly healthier-looking lash fibers.
• Lightweight delivery system: minimizes residue and comfortable for nightly use.

How should I use the serum in my daily routine?

Apply a thin, even coat to the base and length of clean, dry lashes and brows once daily—preferably at night. Allow the serum to absorb fully before applying any other eye products, and avoid direct contact with the eye itself.

• Use after makeup removal and cleansing for best absorption.
• One small stroke along the lash line is typically sufficient per eye.
• Can be used alongside brow treatments for thinning areas.
• Consistency: benefits accumulate with regular nightly use.

Who is this for: Ruminae Keratin Lash Serum is aimed at clients and professionals seeking a recovery-first lash conditioner—people with brittle, overprocessed, or extension-weakened lashes; those who recently had a lift or perm and want to preserve softness; and anyone with sensitive eyes who prefers prostaglandin-free, peptide-rich care. It’s also suitable for use on brows that need rebuilding after cosmetic procedures or long-term product use. Use as part of a nightly maintenance routine to help improve the look and feel of lash and brow hairs over time.