Best Eyelash Serum in Australia (2026)

September 7, 2026|Lash Originals Editorial Team

Before and after using a peptide, panthenol and biotin lash serum

In Australia, lash serums come in three tiers: prescription bimatoprost (via your GP), over-the-counter prostaglandin serums, and prostaglandin-free conditioning serums. For most people — especially anyone with sensitive eyes or lash extensions — the third tier offers the best balance of visible results and safety. Here's the honest comparison.

The three tiers, explained

Tier	How it works	Results	The catch
Prescription bimatoprost (known overseas as Latisse — the brand itself left the Australian register in 2017)	Extends the lash growth phase pharmacologically	Dramatic; clinically documented at ~16 weeks	Schedule 4 / prescription-only in AU; documented side effects; ongoing cost + consultations
OTC prostaglandin serums	Cosmetic analogues (e.g. isopropyl cloprostenate) mimic the same mechanism	Often dramatic	Same side-effect family, less oversight; labelled as cosmetics
Prostaglandin-free conditioning serums	Peptides, biotin and panthenol condition existing lashes	Gradual: healthier, fuller-looking lashes over 8–12 weeks	No overnight drama — consistency required

What we'd choose for sensitive eyes

A water-based, oil-free, prostaglandin-free formula — ideally ophthalmologist-tested. Our Lash Serum is built exactly to that spec: peptides, biotin and panthenol, oil-free and water-based so it suits wear alongside extensions and contact lenses, one dip covers both eyes, one tube lasts about three months. Honest caveats: if you want the fastest possible dramatic length and your doctor approves, prescription bimatoprost outperforms any cosmetic serum. And on pure price, The Ordinary's multi-peptide serum is hard to beat — though it's one shared formula for lashes and brows rather than a dedicated lash treatment.

How to judge any lash serum before buying

Read the INCI list: ingredients ending in "-prost" (or "cloprostenate") mean prostaglandin analogue — a deliberate trade-off, not a neutral choice.
Check the base: oil-free matters if you wear extensions; water-based is gentlest on the lash line.
Look for testing claims with substance: "ophthalmologist-tested" beats vague "clinically proven" with no study in sight.
Distrust 7-day promises: the natural lash cycle runs about 90 days; visible change before week 4 is unlikely with any cosmetic formula.

The verdict

Best overall for most Australians: a prostaglandin-free conditioning serum used daily for 12 weeks. Best on a tight budget: The Ordinary. Best for maximum drama under medical supervision: prescription bimatoprost via your GP. If you're starting your first lash routine, our lash collection is designed to be the simplest safe entry point.

FAQ

How much should I expect to pay for a good lash serum?

Prostaglandin-free lash serums in Australia typically sit in the A$25–70 range for a tube lasting 2–3 months. Premium options can run well past A$150 — often for a formula that still contains a prostaglandin analogue, so price alone tells you nothing about safety.

What ingredients should I avoid?

Check the INCI list for anything ending in "-prost" or "cloprostenate" — these are prostaglandin analogues. If you have sensitive eyes or wear contact lenses, an oil-free, fragrance-free, water-based formula is the safer starting point.

Is it safe to use with lash extensions?

A water-based, oil-free formula is generally considered extension-safe since oils can weaken the extension bond — always check the specific product's label, and ask your lash technician if you are unsure.

How long before I see results?

Most people notice conditioned, healthier-looking lashes from around week 4, with fuller-looking results building through to about week 12 — in line with the natural lash growth cycle. Individual results vary.