Lash serums have surged in popularity as a convenient solution for achieving longer, thicker lashes. While many over-the-counter products promise dramatic results, particularly those containing prostaglandins, it’s crucial to peel back the layers and understand the potential side effects that may accompany their use.
What exactly is Prostaglandin?
Prostaglandins are a group of chemical compounds that can have diverse hormone-like effects. On the market, you can find serums that use synthetic prostaglandins, or prostaglandin analogs (PGAs), such as bimatoprost, latanoprost and isopropyl cloprostenate.
These compounds were originally developed to treat an eye condition called glaucoma. As an unintended side effect, patients began experiencing increased eyelash growth, which led to its eventual use and popularity in the lash serum industry.
What Does Prostaglandin Do to Eyelashes?
In prostaglandin-based lash serums, it functions by extending the anagen phase of the eyelash growth cycle. While this may sound appealing, many users may not be aware that PGAs can come with a variety of side effects that should not be overlooked.
Potential Side Effects of Prostaglandin
#1 Irritation and Allergic Reactions
Users of prostaglandin-based serums often report skin irritation around the eyes, including redness, itching, and discomfort. These reactions can range from mild to severe and may require discontinuation of the product. If you have sensitive skin, these serums could potentially exacerbate your condition, leaving you with unwanted irritation.
#2 Fat Atrophy Around the Eye Area
PGAs also carry the risk of periorbital volume loss, where the fat cells around the eyes shrink, resulting in the appearance of sunken eyes due to the loss of collagen and the inhibition of collagen production.
#3 Hyperpigmentation Around the Eyelids
This can result in increased pigmentation and a subsequent darkening of the eyelid skin, creating a more sunken appearance. No, thank you.
#4 Changes in Eye Colour
One notable (though less common particularly in topical application) side effect of prostaglandin is the potential for changes in iris pigmentation, particularly in individuals with light-coloured eyes. This is due to the increased melanin production triggered by prostaglandin. For some, this change can be irreversible.
#5 Dry Eyes
Some individuals have reported experiencing dry or watery eyes after using prostaglandin-based serums. This could lead to discomfort and necessitate the use of artificial tears, complicating your daily routines.
Navigating the Market Safely
Given the potential for side effects, it is essential to approach the market for lash serums with caution. Not all products are created equal, and choosing to use lash serums—particularly those containing PGAs—should be a decision made by informed consumers who understand the potential benefits and risks involved. If in doubt, always speak to your physician before use.
For those seeking longer, fuller lashes with less worry of side effects, considering alternative solutions, such as peptide-based or vitamin-based serums, may be worthwhile.
Don't take our word for it - check out articles I Quit Using Lash Growth Serum by Megan Decker, Beauty Editor at Refinery29 on how she decided to cut our lash serums containing prostaglandin analogs, and 10 Best Eyelash Growth Serums That Actually Work by Katie Berohn and Pia Velasco that was updated in 2022 to remove previously recommended lash products that contain prostaglandin.
Choosing the Right Product for You
When shopping for lash serums, opt for products that prioritise safety and transparency. Look for serums that are free from harsh chemicals and PGAs, where its full ingredient list is easily accessible to consumers.
Take the Dual-Peptide Lash Serum by Our Good Lab as an illustration. It is a vegan, prostaglandin-free lash serum formulated instead with peptides, vitamins and red clover extract to promote lash strength, length and health. Its gentle formulation also steers clear of pesky potential troublemakers such as parabens, phthalates, sulfates and fragrance that can cause irritation, disrupt hormones in the body or otherwise be harmful to long-term health.
Ultimately, your beauty routine should contribute positively to your overall well being. Knowledge is your best ally when it comes to understanding the products you choose, allowing you to make informed decisions regarding your lash care.