So, you’ve finally decided to try a lash serum. Maybe you’ve always wanted super long lashes. Or you’re tired of using false lashes every time you go out with friends. Or maybe you’ve just seen way too many before and after shots of lashes from a certain skincare brand in your Facebook feed. But there are a few things you should know before you start using a lash serum. Or maybe a few things you should know about lash serum even if you’ve been using one for years.
Prostaglandins and analogues
Almost all lash serums work with a combination of vitamins, peptides and prostaglandin analogues. You can learn more about how prostaglandin analogues work in this post.
Lash serums aren’t pregnancy safe
So, because of various effects on both mom and baby, we don’t recommend prostaglandins during pregnancy. And while your lash serum has a very small amount and you use a very small amount, you likely won’t find a doctor who says it’s 100% safe. The study of lash serum safety would require a huge number of pregnant women, would be incredibly expensive, and likely would be unethical to perform. Personally, I stopped using my lash serum while pregnant and I recommend avoiding them when asked.
I have a list of pregnancy and nursing safe lash serums here.
Give it time
It will probably take a minimum of 6 weeks to really see results from your lash serum, maybe even 12. For real.
Expect some irritation
Every lash serum that I’ve tried has given me itchy, irritated lash lines. I’ve found that cleansing my lash line each night with baby shampoo and minimizing my eye liner helps quite a bit. It usually starts about 4-5 weeks after starting lash serum, lasts about 2 weeks, and then goes away.
Note that with each new tube of lash serum does this to me, even if I’ve been using that brand for years. The very first tube is the worst and subsequent tubes aren’t as irritating, but it still happens.
You can use more than one
Each brand of lash serum has different ingredients in the mix to support your lashes and improve their growth. The only harm in doubling up is that you’ll likely have more irritation. If this is tolerable, if it a try! I’ve done well with a combination of Revitalash Advanced and R+F Lash Blast.
Your lashes won’t be the same
After lash serum my lashes are definitely longer and thicker, but they’re also a bit harder to manage. They are straighter, less likely to curl, and those longer lashes are also harder to get mascara on to, they wiggle around a lot.
I’ve found that the stiffer rubber pad in the Surratt Beauty Relevee Lash Curler really does make a big difference over other lash curlers (yes, including the Shu and Shiseido). My lashes curl much more easily and hold that curl all day.
As for mascara, I’m now obsessed with the Bobbi Brown Smokey Lash Mascara. Something about the wand deposits mascara onto my wiggly lashes more easily, and it is stiff enough to not let my lashes straighten out throughout the day.
Use it on your brows
The ingredients in lash serums don’t only work on your lashes, they also work on your eyebrows. You can use the same lash serum on your brows to help fill in any bare spots.
Many lash serums also come in a brow version, typically this is is just a gel version of the liquid lash serum. I’ve found that the brow version stays put a bit better on the brows, rather than dripping down like the lash version.
Read more about mascara, mascara primers and lashes in my Mascara and Lashes Guide