You want longer, fuller lashes, but without feeling like you’re running a tiny chemistry lab along your lash line. That’s why prostaglandin-free lash serums have become one of the most in-demand things in the beauty world right now.

Here’s a simple, honest guide to what prostaglandins are, why many people choose to avoid them, and what options you actually have when you want results without prostaglandins. (Spoiler: we have two.)

What does “prostaglandin-free lash serum” actually mean?

In many lash serums that deliver very fast results, you may find prostaglandins or prostaglandin analogues. These are substances also used in eye medicine (including for glaucoma), and they can affect the hair growth phase.

Prostaglandins have been linked to unwanted side effects such as:

  • darker skin on the eyelid (may be reversible)

  • darker pigment in the iris (may be permanent)

  • irritation/redness around the eyes (commonly reported with prostaglandin analogues used in the eye area)

So what do you use in a lash serum without prostaglandins?

You’ll often look for ingredients that work more through “care + support,” such as peptides and plant extracts. In other words: you help your lashes thrive, so they have the chance to grow longer and look fuller over time—without prostaglandin-type ingredients.

We have two products for anyone searching for a prostaglandin-free lash serum, and which one you choose depends on what you want to achieve (and how many steps you can be bothered with in your routine).

1) Grow Gasm Lash Serum

Grow Gasm Lash Serum is made for lashes—full stop. It’s lightweight, transparent, absorbs quickly, and is used once daily along the upper lash line.

Key points:

  • Free from prostaglandins, fragrance, parabens, and silicones

  • Vegan, formulated with the peptide Myristoyl Pentapeptide-17

  • Also contains purslane and pumpkin extract to help soothe and protect the skin along the lash line

  • 2–4 weeks is the earliest window many notice a change, with full results after 6–8 weeks


Read more about the serum here.

2) Brow & Lash Serum

This is the serum for anyone who wants to give both brows and lashes some love in the same routine. Apply it at the root of the brow hairs with the brush, and along the upper lash line with the soft tip, every evening.

Key points:

  • Visible results are often reported within 4–6 weeks, with full results after 8–12 weeks with consistent use

  • Contains, among other ingredients, Acetyl Tetrapeptide-3 and Trifolium Pratense (Clover) Flower Extract


Read more about the serum here.

How to get the best results

Apply to clean, dry skin.
Less is more. A thin line is enough.
Be consistent.

If you want a prostaglandin-free lash serum, you have two safe, great WOWBROW options: Grow Gasm Lash Serum for those who want a lash-focused serum with simple daily use, and Brow & Lash Serum for those who want a steady boost for both brows and lashes over time.

Source: Mattilsynet.

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