Make Extensions Jealous.
Visibly longer, fuller, healthier lashes in 4–6 weeks — naturally, without prostaglandins or hormones.
- Visible results in 4–6 weeks of daily use
- Powered by biotin, peptides & botanical extracts
- Prostaglandin-free, hormone-free formula
- Designed for sensitive eyes — safe with extensions
- 60-day money-back guarantee
Sensitive Eyes
& Vegan
Formula
Money-Back
How It Works
Three steps. Four to six weeks. Real results.
Cleanse
Remove makeup, oils, and contacts. Lash line should be clean and fully dry before application.
Apply
Once nightly, brush a thin line along the upper lash line — like applying eyeliner. One swipe is plenty.
Reveal
Use consistently for 4–6 weeks to see visible length, density, and shine. Continue for full results.
Real Results
Real customers. Real lashes. No filters.
After 6 weeks of daily use
After 8 weeks of daily use
After 12 weeks of daily use
What's Inside
Powerful, science-backed actives. No hormones, no prostaglandins, no harsh chemicals.
The lash multivitamin. Strengthens keratin structure for less breakage and shedding.
Botanical extract that stimulates follicle activity and supports healthy growth cycles.
Pure hyaluronic acid. Hydrates and conditions for visibly softer, shinier lashes.
Penetrates and conditions each lash, reducing brittleness and improving flexibility.
Why Katie's Brand
Most lash serums use prostaglandins (like Latisse) — which can cause iris darkening, dark eye circles, and irritation. We don't.
- Often contain prostaglandins
- Risk of iris pigmentation change
- Can cause periorbital fat loss
- Often dry and irritating
- Generic guarantee or none
- 100% prostaglandin-free
- Safe for sensitive eyes & extensions
- Hydrating peptide-based formula
- Conditions while it grows
- 60-day money-back guarantee
What Customers Are Saying
Verified reviews from real customers.
Frequently Asked Questions
When will I see results?
Most customers see visible improvement in 4–6 weeks of consistent nightly use. Full results — peak length, density, and shine — typically appear at 8–12 weeks. Lash growth happens in cycles, so consistency matters more than quantity.
Is it safe to use with eyelash extensions?
Yes. Our formula is oil-free and extension-safe. Apply only to the lash line (skin), not on the extensions themselves. Many of our customers use the serum to keep natural lashes strong while wearing extensions, which actually helps extensions last longer.
Can I wear mascara over it?
Absolutely. Apply the serum to clean lashes at night before bed. In the morning, your lashes are ready for mascara, makeup, or extensions. The serum is fully absorbed by then.
Does it contain prostaglandins or hormones?
No. Many lash serums use prostaglandin analogs (like bimatoprost), which can cause iris pigmentation changes, dark circles, and periorbital fat loss. Our formula is 100% prostaglandin-free and hormone-free, using peptides, biotin, and botanical extracts instead.
Will it irritate sensitive eyes?
Our formula is designed for sensitive eyes — water-based, fragrance-free, and free from harsh actives. That said, every person is different. If irritation occurs, discontinue use. We recommend patch testing on the inner forearm for 24 hours before first use.
How long does one bottle last?
One 3ml bottle lasts approximately 30 days with daily nightly use. For best results, use consistently for at least 8–12 weeks. Many customers subscribe to receive a fresh bottle every 30 days.
Is it safe during pregnancy or breastfeeding?
While our ingredients are gentle and free from hormones or prostaglandins, we recommend consulting your doctor before using any cosmetic product during pregnancy or breastfeeding.
What if it doesn't work for me?
You're covered by our 60-day money-back guarantee. If you're not seeing results or aren't satisfied for any reason, contact us within 60 days of purchase for a full refund. No complicated returns process.