What Lash Serums Contain Prostaglandins?

If you’ve been researching lash growth products, you may have come across the question: what lash serums have prostaglandin?

Prostaglandins (or prostaglandin analogues) are ingredients used in some lash serums to stimulate lash growth. While they can encourage longer lashes, they have also been associated with certain side effects around the eye area, which is why many consumers now actively search for prostaglandin-free lash serums.

Understanding how to identify these ingredients and which types of lash serums typically contain them can help you make a more informed decision when choosing a product.

So What Lash Serums Have Prostaglandin?

Some lash serums contain prostaglandin analogues, synthetic compounds originally developed for glaucoma medications that were later adapted for lash growth products.

These ingredients stimulate the lash growth phase, but they may also interact with tissue around the eye area.

Because prostaglandins can appear under several different ingredient names, they are not always immediately obvious on an ingredient list.

What Are Prostaglandin Analogues?

Prostaglandins are naturally occurring signalling molecules in the body that regulate processes such as inflammation and tissue responses.

In lash serums, manufacturers use prostaglandin analogues, which mimic these natural molecules.

These compounds extend the anagen phase of the lash growth cycle, allowing lashes to grow longer before shedding.

This is why prostaglandin-based lash serums often produce rapid lash growth results.

Learn more about the lash growth cycle here

Ingredient Names That Indicate Prostaglandins in Lash Serums

One challenge for consumers researching lash serums is that prostaglandin analogues rarely appear clearly labelled on ingredient lists. Instead, they are usually listed under complex scientific names, making it difficult for many people to immediately recognise when a lash serum contains them.

Instead, they are usually listed under technical INCI names, which can make them difficult for consumers to recognise.

Some prostaglandin analogue ingredients that may appear in lash serums or related ophthalmic products include:

Isopropyl Cloprostenate
Dechloro Dihydroxy Difluoro Ethylcloprostenolamide
Methylamido-Dihydro-Noralfaprostal
Bimatoprost
Latanoprost
Travoprost
Tafluprost
Cloprostenol
Cloprostenol Isopropyl Ester
Prostaglandin F2α
Prostaglandin F2α analogues
Noralfaprostal derivatives
Ethyl Tafluprostamide
Tafluprostamide
Bimatoprost analogues

Because these ingredients are often listed under complex scientific names, many consumers may not realise when a lash serum contains a prostaglandin analogue.

This is one reason why some brands now clearly label their formulas as prostaglandin-free, helping consumers make more informed choices.

Why Some Lash Serums Use Prostaglandins

The use of prostaglandin analogues in lash serums began after doctors noticed that patients using glaucoma medications experienced longer, thicker eyelashes as a side effect.

Cosmetic lash serums later adopted similar compounds to stimulate lash growth.

However, because prostaglandins influence biological signalling pathways, they have also been associated with certain eye-area side effects in some users.

Potential Side Effects Associated With Prostaglandin Lash Serums

Although many users tolerate prostaglandin-based lash serums well, some side effects have been reported in medical literature and consumer reports.

These may include:

eye irritation or redness
darkening of the eyelid skin
increased pigmentation around the lash line
changes in eyelid tissue appearance
iris color changes

Some users have also discussed changes in the appearance of the eye area, sometimes described as hollowing or “sunken eyes.”

Why Many Lash Serums Are Now Prostaglandin-Free

As consumer awareness around ingredient safety has grown, many lash serum brands now offer prostaglandin-free formulas.

These formulas aim to support lash growth using ingredients that focus on follicle health and lash conditioning, rather than stimulating prostaglandin receptors.

Common alternatives include:

peptides, which support hair structure
botanical extracts, which nourish follicles
vitamins, which strengthen lashes and reduce brittleness

These ingredients work with the natural lash growth cycle to encourage healthier lashes over time.

A Prostaglandin-Free Alternative

At SOWN, we created our lash and brow serum because we struggled to find a formula we felt comfortable using consistently near the eyes or ones that didn't give us side effects.

Many mainstream lash serums rely on prostaglandin analogues for rapid lash stimulation. While effective for some users, these ingredients have also raised questions around eye-area sensitivity and long-term use.

SOWN Root 1 Lash & Brow Serum takes a different approach.

Our formula is:

✔ prostaglandin-free
✔ hormone-free
✔ powered by peptides, root botanicals and multivitamins

These ingredients support the natural lash growth cycle, helping lashes grow stronger and fuller over time.

Unlike many prostaglandin-based serums designed for short treatment cycles, SOWN is formulated to be safe for consistent daily use as part of your routine.

Explore SOWN Root 1 Lash & Brow Serum

How to Check if Your Lash Serum Contains Prostaglandins

If you want to determine whether a lash serum contains prostaglandins, check the ingredient list carefully.

Look for:

prostaglandin analogue names such as Isopropyl Cloprostenate
highly technical chemical names related to prostaglandin derivatives
claims about rapid lash growth

If you prefer to avoid prostaglandins entirely, look for formulas that clearly state prostaglandin-free.