Rodan and Fields Lash Boost Review (Is It Actually Worth $155?)

I’ve had short, stubby lashes my entire life. It’s the beauty thing I complain about most, right up there with never fitting into sample-size shoes. I first tried the lash boost serum from Rodan and Fields back in 2020, and I’m still buying it years later, so this Rodan and Fields Lash Boost review isn’t just a first impression anymore.

It’s the long-term stuff: what it actually does to your lashes, what it costs now ($155, up from $150 when I started), and why I just placed another order after a lash lift appointment went very wrong.

I’m gonna walk you through my whole history with this stuff: what happened the first time I used it, the side effects other people have reported, how it stacks up against Grande Lash and Babe Lash (both of which I’ve since tried), and everything you need to know before you spend $155 on a tiny tube.

Rodan and Fields Lash Boost Review: Does It Actually Work?

Quick verdict: yes, Rodan and Fields Lash Boost works. It’s the one lash serum that’s earned a repurchase from me after years of testing other brands, but it comes with real side effect risks you should know about before you spend $155 on it.

Short answer: yes. Longer answer: it took me about eight weeks the first time, which is longer than the four weeks Rodan and Fields promises on the box, but I started slow on purpose.

Back in 2017, when I was getting ready for my wedding, I used NeuLash for a few months leading up to the big day, so I already had a lash serum to compare this one to. I ended up wearing dramatic false lashes for the actual wedding and through the honeymoon, but $100 every four to six weeks for fake lashes isn’t sustainable, so I went looking for a lash serum that could do the work instead.

You’ve probably seen the name Rodan and Fields everywhere lately, from Instagram ads to your aunt’s Facebook page. If you’ve searched for a Rodan and Fields eyelash serum online, Lash Boost is the one everyone’s talking about. Some people call it R and F Lash Boost for short, and that’s the same product I’m talking about here. Whatever you call it, the Rodan and Fields lash serum is the one this whole post is about.

When I told my followers on Instagram I was switching to this lash serum, I got a flood of DMs. Some women loved it. Others told me some truly alarming stuff about side effects, which I’ll get into below.

My Rodan and Fields Lash Boost Results (Then vs Now)

I started slow. Instead of jumping straight to nightly use, which is what the instructions recommend, I applied it every other day for the first couple of weeks just to make sure my eyes wouldn’t react. Once nothing happened, I moved to nightly, and by week eight my lashes were noticeably longer and fuller.

Rodan and Fields runs their own 8-week consumer study on this stuff, and the data lines up with what I saw. They report 90 percent of people noticed fuller-looking lashes, 85 percent noticed longer-looking lashes, and 63 percent noticed darker-looking lashes.

My results held their length for weeks after I stopped applying it daily, which wasn’t the case with NeuLash. I had to use that one at least once a week or my lashes would shrink right back down.

Fast forward to now: I’ve used this on and off for years. One tube runs $155 as of July 2026, and if you use it nightly on the upper lash line only, it lasts about two months. It’s true, that price tag makes me wince every time I check out, but I keep going back to it, which says more than any five-star review I could write.

Why I Started Using Rodan and Fields Lash Boost Again

Here’s the deal: a couple months ago I got my lashes permed and lifted for the first time ever, and it was a botched job. The person who did it over-processed them, and my natural lashes have been falling out at a rapid pace ever since. My lash line looked so short and patchy that I went straight back to the one lash serum I know actually works for me.

Rodan and Fields Lash Boost works with your lash growth cycle, so you use it every single day for about eight to twelve weeks while it’s actively growing new lashes, and then you can drop down to once or twice a week for maintenance.

Since my lashes are basically starting over from the lift disaster, I’m back on the nightly routine, and I’ll update this post with new photos once I see growth again.

Rodan and Fields Lash Boost vs Grande Lash and Babe Lash

Over the past two years, I’ve tested a handful of other lash serums as part of my beauty content here at Whimsy Soul, because comparing products is basically my favorite part of this job.

I tried GrandeLASH-MD (Grande Lash Boost is what most people call it), and it actually works really well. It’s about half the price of Rodan and Fields, but it started irritating my eyes and making them itchy after a few weeks, so I had to stop using it. If you have sensitive skin around your eyes, that’s worth knowing before you buy.

I also tried Babe Lash (the brand rebranded to Babe Original a few years back), and it just wasn’t as effective for me. My lashes didn’t grow nearly as quickly as they did with Rodan and Fields, even with consistent nightly use.

So if you’ve read other Lash Boost reviews online debating which lash serum is worth the splurge, here’s my take: Grande Lash is the budget pick if your eyes tolerate it, Babe Lash is the gentlest option, and Rodan and Fields Lash Boost is still the one that grows my lashes fastest, even at $155 a tube.

Rodan and Fields Lash Boost Side Effects

I haven’t personally had any negative side effects from this lash serum, but I want to be upfront that not everyone has the same experience I did. The active ingredient responsible for the growth, isopropyl cloprostenate, is a synthetic prostaglandin analog.

It’s the same category of ingredient originally used in glaucoma medication, where eyelash growth showed up as a side effect, which is how the beauty industry got interested in it in the first place.

A friend of mine who reviews beauty products told me this serum turned her lash line a noticeably darker color, and months later it still hadn’t faded back to normal. A follower on Instagram told me it turned the whites of her eyes pink for a few weeks, which still freaks me out a little every time I think about it.

Rodan and Fields recommends a patch test before you start: apply a small amount to the upper lash line of one eye, wait 24 hours, and watch for redness or irritation before using it on both eyes. If you do notice irritation, even after cutting back to every other day, they recommend stopping and talking to a doctor.

Worth noting, too, that the brand’s own clinical testing only ran eight weeks. There’s no long-term study on what happens after years of use, and I’ve now been using it on and off for years, so take that as you will.

Because I have eczema and pretty reactive skin in general, I expected to be the person who reacted badly to this. I started every other day instead of nightly, and I never had any issues. Your eyes and your skin aren’t mine, though, so proceed carefully, especially if you’re pregnant, nursing, being treated for glaucoma or cancer, or if you have a history of conjunctivitis, dry eyes, styes, or other eye irritation.

How To Use Rodan and Fields Lash Boost The Right Way

If you’re going to spend $155 on a tube of this stuff, you want to actually use it correctly so you’re not wasting product or risking irritation for no reason. Here’s exactly how, based on Rodan and Fields’ own directions:

1. Make sure your lash line is clean, dry, and completely free of makeup.
2. Dip the wand once. One dip is enough for both eyes.
3. Apply a single, thin stroke along your upper lash line only, like you’re drawing on liquid eyeliner. Skip the lower lash line completely, since applying it there raises your risk of irritation.
4. Wait about 90 seconds for it to dry before you lie down or put on anything else near your eyes.
5. Apply nightly. Rodan and Fields doesn’t recommend using it more than once a day, since overuse leads to irritation, not faster results.

You can also use this lash serum on your eyebrows: apply it nightly to clean, dry brows, and don’t wash your face afterward so it has time to absorb. It’s safe for contact lens wearers, but Rodan and Fields doesn’t recommend using it if you have eyelash extensions.

One tube has a two-year shelf life unopened, but once you crack it open, use it within about three months. Store it somewhere you’ll actually see it every night, because consistency is the entire game with this product.

Rodan and Fields Lash Boost Review: My Final Verdict

Yes, I’d buy this again. I did buy it again, actually, which is the whole reason this post exists now instead of staying a five-month review from a few years ago. $155 for a tiny tube still feels like a lot every single time I check out, but between the lash lift disaster and years of watching this be the one lash serum that consistently grows my lashes back, it’s earned the repurchase.

Authentic Rodan and Fields products are only sold through an Independent Consultant or directly on rodanandfields.com, so if you spot this on some random third-party site for a suspiciously low price, skip it. You can shop Rodan and Fields Lash Boost here.

PS: if you’re hunting for a Rodan and Fields Lash Boost dupe that’s affordable, I’ve heard Maybelline has one for $14, though I’ve never been able to find it in stores to test it myself.

Rodan And Fields Lash Boost FAQ

Is this Rodan and Fields Lash Boost review up to date?

Yes. This review was originally published in 2021 and updated in July 2026 with current pricing, Rodan and Fields’ official return policy, and my results after using this lash serum on and off for several years. I’ll keep updating it as my own routine changes, including new photos once my lashes grow back from a recent lash lift mishap.

Does Rodan and Fields Lash Boost expire?

Yes. An unopened tube has a two-year shelf life, but once you open it, Rodan and Fields recommends using it within about three months and then replacing it. If you’re applying it nightly on the upper lash line only, one tube typically lasts around two months before you run out anyway.

Does Rodan and Fields Lash Boost have prostaglandin?

Yes. Lash Boost contains isopropyl cloprostenate, a synthetic prostaglandin analog. It’s the same category of ingredient originally used in glaucoma medication, where longer eyelashes showed up as a side effect. It’s also the ingredient responsible for both the growth results and the occasional side effects people report, like eye redness or a darkened lash line.

How much does Rodan and Fields Lash Boost cost?

One tube costs $155 as of July 2026. Rodan and Fields offers free shipping through their PC Perks membership, and non-member orders may qualify for free shipping depending on your order total, so check the current details at checkout.

Is Rodan and Fields Lash Boost safe to use?

Rodan and Fields says Lash Boost is well tolerated for most users, and that’s been true for me personally. That said, some people do report side effects like eye or eyelid irritation, redness, or a darkened lash line, which makes sense given the prostaglandin analog in the formula. Rodan and Fields recommends a patch test before your first full application, and starting with a reduced frequency if you have sensitive skin or eyes.

How long does it take to see results from Rodan and Fields Lash Boost?

Rodan and Fields says most people notice a difference within four weeks, with the best results around eight weeks. It took me closer to eight weeks the first time, partly because I started slow on purpose by applying it every other day instead of nightly.

Can I return Rodan and Fields Lash Boost if it doesn’t work for me?

Yes. Rodan and Fields offers a full refund of the purchase price, not including shipping, within a 60 day return window from your purchase date. If the item is returned outside that window, they won’t issue a refund, so hang onto your tube and order confirmation if you think you might want to return it.

Is Rodan and Fields Lash Boost better than Grande Lash or Babe Lash?

For me, yes, but it depends on your priorities. Grande Lash (GrandeLASH-MD) works well and costs about half as much, but it irritated my eyes after a few weeks of use. Babe Lash, now called Babe Original, was gentler on my eyes but didn’t grow my lashes as quickly.

Rodan and Fields Lash Boost is the one that’s consistently given me the fastest, most noticeable growth, which is why I keep going back to it even at the higher price.

Can I use Rodan and Fields Lash Boost on my eyebrows?

Yes. Apply it nightly to clean, dry eyebrows, and don’t wash your face afterward so it has time to absorb. It’s suitable for tinted lashes and brows too, and won’t affect the color.

Have you tried Rodan and Fields Lash Boost, or one of the other lash serums I mentioned? Drop a comment below and let me know how it went for you, especially if you’ve had a totally different experience with side effects. I read every single one, and you can always DM me on Instagram too.