NULASTIN Lash & Brow Dual System Eyelash and Eyebrow Serums, 2 × 0.1 fl oz — Keratin & Peptides

NULASTIN Lash & Brow Dual System is a paired eyelash and eyebrow serum set designed to reduce visible shedding and promote the appearance of longer, fuller lashes and brows using keratin, peptides, and elastin-targeted ingredients.

This dual kit includes one eyelash-enhancing serum and one brow-renewing serum in 0.1 fl oz tubes each, formulated to address shedding and support visibly fuller-looking hair over time. The formulas combine keratin, peptides, and elastin-replenishing actives developed from NULASTIN's elastin-focused research. Applied daily, the two-step routine aims to improve the look and condition of lashes and brows, with clinical testing indicating visible changes in several weeks.

How soon will I notice changes in my lashes and brows?

Many users observe improvements within about six weeks when applying the lash and brow serums as directed twice daily. Individual results vary based on starting condition and consistency of application; continued use typically maintains and enhances the effect.

• Twice-daily application during initial phase for faster visible results
• Switch to once-daily maintenance after achieving desired look
• Clinical testing reported visible improvements in the six-week timeframe

What makes the lash serum different from the brow serum?

The lash serum is concentrated for use along the upper lash line to encourage the appearance of length and reduce shedding, while the brow serum is optimized for application across brows and skin to support fuller, more sculpted brows. Each formula contains a tailored blend of active ingredients suited to its specific area.

• Lash formula: five active ingredients targeting lash length and sheen
• Brow formula: elastin-replenishing ingredients to help reduce brow hair shedding
• Both: keratin and peptides to support hair appearance and condition

How do I apply each product for safe, effective use?

Apply the eyelash serum as a thin line above the upper lash line once in the morning and once at night during the initial treatment period. For eyebrows, use the brush applicator to lightly coat brow hairs and adjacent skin twice daily; once you reach your desired results, reduce to once daily for maintenance.

• Clean, dry eyelids and brows before application
• Use a fine line of lash serum on the top lid only—avoid direct eye contact
• Brush brow serum across brows and skin where fuller appearance is desired
• Maintain regular use to preserve results

Are these serums backed by research and safe for routine use?

NULASTIN formulates these serums based on elastin replenishment science aimed at improving hair anchoring and appearance. The duo has been clinically tested for visible improvement in lash and brow appearance when used as directed; users should follow instructions and discontinue use if irritation occurs.

• Formulations rooted in elastin-targeted research
• Clinical testing supports visible appearance improvements
• Designed for daily use with a recommended maintenance schedule

Who is this for: This Lash & Brow Dual System is made for anyone seeking a non-invasive way to improve the appearance of thinning or sparse lashes and brows. It suits users who want a targeted, science-informed routine incorporating keratin and peptides, and who can commit to daily application for best results. If you wear makeup, these serums work within your existing beauty routine; those with sensitive skin should patch-test first and consult a professional if unsure.

Ingredients

Water (Aqua), Myristoyl Pentapeptide-17, Glycerin, sh-Polypeptide-50 (Elastin), Keratin, Carbomer, Sodium Phytate, Sodium Phosphate, Sodium Chloride, sh-Polypeptide-62, (+)-Cloprostenol Isopropyl Ester, Sodium Hydroxide, Phenoxyethanol