Lash Serum NZ
Vegan, prostaglandin-free lash serum made for New Zealand lashes. Our peptide lash serum helps your natural lashes look longer, fuller and healthier with one brushstroke a night. No hormones, no extensions, no fuss. Backed by 1,800+ reviews and a 60-day money-back guarantee.
Shop the Peptide Eyelash Serum from $59.99 →
What is a lash serum?
A lash serum is a leave-on treatment you brush along the base of your upper lashes, like a clear eyeliner, once a day. Where mascara coats lashes for the day, a serum works on lash condition over time. It keeps lashes moisturised, strengthens them against breakage, and supports the look of length and fullness as your lashes grow through their natural cycle.
What makes Lash Fridays different
- Peptide-powered. Our formula contains Myristoyl Pentapeptide-17, one of the most widely used peptides in lash care, alongside keratin and biotin (vitamin B7).
- Prostaglandin-free and hormone-free. We don't use prostaglandin analogues. More on why below.
- Hydrating base. Hyaluronic acid, collagen and pumpkin seed extract help keep lashes soft and conditioned rather than dry and brittle.
- Vegan and cruelty-free. Every product in the range.
- Designed in Auckland. Shipped fast from New Zealand.
Prostaglandin-free vs prostaglandin lash serums
Many of the strongest-acting lash serums on the market contain prostaglandin analogues, ingredients related to medicines used in glaucoma eye drops. They can be very effective, but they are also linked to side effects some people want to avoid, including eye irritation and redness, darkening of the eyelid skin and, in rare cases, changes to iris colour.
Lash Fridays is prostaglandin-free. Instead, we rely on peptides and conditioning ingredients that support lash health gently. It's the approach we'd choose for our own eyes, especially if you have sensitive eyes or want a serum you can use long term.
How peptides help your lashes
Peptides are short chains of amino acids, the building blocks of the proteins that make up your lashes. In lash care, peptides like Myristoyl Pentapeptide-17 are used to help condition and strengthen lashes, so they're less likely to snap and more likely to reach their full natural length. Combined with keratin and biotin, the result is lashes that look longer, fuller and healthier over time.
How to use lash serum
- Cleanse. Start with a clean, completely dry eye area, ideally at night.
- Wipe. Remove excess serum on the inside rim of the tube.
- Apply. Brush a single thin line along your upper lash line, right at the root, like liquid eyeliner.
- Dry. Let it absorb for a minute before sleeping or applying makeup. Avoid getting it directly in the eye.
- Be consistent. Use it every day. Lashes grow in cycles, so most people see the best results after 6 to 8 weeks.
Want the full walkthrough? Read our 6-step guide to applying lash serum.
How long does lash serum take to work?
Everyone's lashes are different, but most customers notice a change in how their lashes look within 4 to 8 weeks of daily use. That's why we offer a 60-day money-back guarantee: give it the full 60 days, and if you're not happy, we'll refund you.
What our customers say
"My lashes were short and thinning, and nothing seemed to help, until a friend recommended this product. My lashes are now noticeably longer and fuller. Having tried numerous serums before, this is the first to deliver such impressive results."
Vanessa R., verified buyer
"I am stunned, it really works! When I get my eyebrows done, my therapist mentions how gorgeous my lashes look."
Birgit C., verified buyer, very sensitive skin
Read all 1,800+ lash serum reviews →
Find your routine
- Peptide Eyelash Serum: our best seller. 5ml (about 5 months) or 3ml (about 3 months). From $59.99.
- Peptide Mascara Serum: volume by day that keeps conditioning while you wear it.
- Lash & Mascara Serum Duo: serum by night, mascara serum by day. Save 35%.
- Lash & Brow Serum Duo: peptide care for lashes and brows. Save 25%.
Lash serum FAQ
Is Lash Fridays lash serum prostaglandin-free?
Yes. Our lash serum contains no prostaglandins or prostaglandin analogues, and no hormones.
Can I use lash serum with lash extensions?
Yes. Apply it carefully at the root of your natural lashes. Many customers use it to keep their natural lashes healthy while wearing extensions, or to recover after taking extensions off.
Is it safe for sensitive eyes?
Our formula is hormone-free and prostaglandin-free, and many customers with sensitive eyes use it happily. As with any new product near the eyes, patch test first and stop using it if irritation occurs.
Can I use it on my eyebrows?
Our Peptide Eyebrow Serum is formulated specifically for brows, and the Lash & Brow Duo saves you 25% on both.
Can I use it with contact lenses?
Remove your lenses before applying, let the serum dry fully, then put your lenses back in.
How long does one tube last?
With once-daily use, the 5ml tube lasts about 5 months and the 3ml tube about 3 months.
Is it vegan and cruelty-free?
Yes. Our entire range is vegan and never tested on animals.
Do you ship across New Zealand?
Yes, with fast, free shipping across NZ. We also ship to Australia, the UK, the US, Singapore and Japan.
