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 Rodan and Fields Lash Boost back in 2020, and I’m still buying it in 2026, so this Rodan and Fields Lash Boost review covers years of real use, not a first impression.

You’ll get the long-term stuff here: what it actually did to my lashes, what it costs now ($155 a tube, up from $150 when I started), the side effects other women have messaged me about, and why I just placed another order after a lash lift appointment went very wrong. I’ve also tried Grande Lash and Babe Lash since then, so I’ll show you how all three stack up 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. It’s also the most expensive one I’ve tried, and it comes with real side effect risks you should know about first.

It took me about eight weeks to see results the first time. That’s longer than the four weeks Rodan and Fields promises on the box, but I started slow on purpose (more on that below).

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.

If you’ve searched for a Rodan and Fields eyelash serum (some people just call it R and F Lash Boost), this is the one. When I told my followers on Instagram I was switching to it, 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.

Rodan and Fields Lash Boost Pros and Cons

Here’s the short version before I get into the details.

Pros

• It grew my lashes faster than any other lash serum I’ve tried, including Grande Lash, Babe Lash, and NeuLash.
• My results held their length for weeks after I stopped daily use. NeuLash couldn’t do that for me.
• One dip of the wand covers both eyes, so a tube lasts about two months of nightly use.
• It works on eyebrows too, and it’s safe for contact lens wearers.
• Rodan and Fields offers a full refund within 60 days if it doesn’t work for you.

Cons

• $155 a tube works out to roughly $77 a month while you’re in the daily growth phase.
• It contains a prostaglandin analog, and some people report a darkened lash line or red, irritated eyes.
• It took me closer to eight weeks to see results, not four.
• The brand’s clinical testing only ran eight weeks, so there’s no long-term data on years of use.
• It’s not recommended if you wear eyelash extensions.

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 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 ran its 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 since 2020. One tube runs $155, and if you use it nightly on the upper lash line only, it lasts about two months. That price tag makes me wince every time I check out, and I keep reordering it anyway.

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. 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 after the lift disaster, I’m back on the nightly routine. I’ll update this post with new photos once I see growth again.

Is Rodan and Fields Lash Boost Worth $155?

Let’s do the math, because $155 sounds a lot scarier than it is per month.

During the daily growth phase, one tube lasts me about two months, so you’re looking at roughly $77 a month. Once you drop to maintenance (once or twice a week), the tube itself would last a lot longer, but Rodan and Fields says to use an opened tube within about three months. Realistically, maintenance runs about $52 a month.

For comparison, my false lash habit before the wedding cost me $100 every four to six weeks, and my natural lashes got nothing out of it.

Worth it if you’ve tried cheaper lash serums without results, your eyes aren’t sensitive, and you’ll actually use it every single night for at least two months.

Skip it if you have reactive eyes, you’re pregnant or nursing, or you know you’ll forget it half the week. Inconsistent use is the fastest way to waste $155.

Rodan and Fields Lash Boost vs Grande Lash and Babe Lash

Since my first round with Lash Boost, 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. Here’s how the big three compare on price (as of October 2026) and on how they worked for me:

GrandeLASH-MD

I tried GrandeLASH-MD (most people just call it Grande Lash), and it actually works really well. It’s way cheaper than Rodan and Fields per month, but it started irritating my eyes and making them itchy after a few weeks, so I had to stop.

Worth knowing: GrandeLASH-MD lists isopropyl cloprostenate in its ingredients, the same prostaglandin analog in Lash Boost. So cheaper doesn’t automatically mean gentler. If you have sensitive skin around your eyes, patch test this one just as carefully.

Babe Lash (Now Babe Original)

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. Its Essential Lash Serum is built around biotin and panthenol, which lines up with my experience: easy on my eyes, slow on results.

Which Lash Serum Should You Buy?

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 I’ve tried. Rodan and Fields Lash Boost still grows my lashes the 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 not everyone has the same experience I did. The active ingredient responsible for the growth, isopropyl cloprostenate, is a synthetic prostaglandin analog.

That’s the same category of ingredient originally used in glaucoma medication, where eyelash growth showed up as a side effect. That’s 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 notice irritation, even after cutting back to every other day, they recommend stopping and talking to a doctor.

The brand’s own clinical testing also 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 since 2020, 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. That goes double if you’re pregnant, nursing, being treated for glaucoma or cancer, or 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, 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 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.

Pro-tip: store it somewhere you’ll actually see it every night, right next to your toothbrush or your night cream. Consistency is the entire game with this product.

Where To Buy Rodan and Fields Lash Boost (and How To Avoid Fakes)

Buy it directly from rodanandfields.com or through a Rodan and Fields consultant. You can shop Rodan and Fields Lash Boost here.

I’m gonna be honest with you: this product has a counterfeit problem. Third-party sellers on eBay list it for $60 to $75 right now, and some buyer reviews on those listings say what they got was fake. When you’re putting something on your lash line every night, a suspiciously cheap tube from a random seller isn’t worth the savings. You also lose the 60-day refund if you don’t buy through an official channel.

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 got a refresh instead of staying a five-month review from 2020. $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.

Patch test first, start every other day if your skin is reactive like mine, and give it a full eight weeks before you judge it. Get Rodan and Fields Lash Boost here.

PS: if you want a cheaper Rodan and Fields Lash Boost dupe to try, I’ve heard good things about Maybelline’s lash serum, which runs about $11 now. I haven’t tested it myself, so I can’t vouch for whether it actually grows anything.

Rodan and Fields Lash Boost FAQ

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

Yes. I originally published this review in 2020 and last updated it in October 2026 with current pricing, a cost-per-month breakdown, an updated comparison with Grande Lash and Babe Lash, and my results after using this lash serum on and off for years. I’ll add new photos once my lashes grow back from a recent lash lift mishap.

How much does Rodan and Fields Lash Boost cost?

One tube costs $155 as of October 2026. Used nightly, it lasts about two months, which works out to roughly $77 a month. Shipping offers change often, so check the current details at checkout.

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.

What happens when you stop using Rodan and Fields Lash Boost?

For me, my lashes held their length for several weeks after I stopped daily use, which wasn’t true of NeuLash. Rodan and Fields recommends dropping to once or twice a week for maintenance after the initial eight to twelve weeks instead of stopping completely.

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 responsible for both the growth results and the occasional side effects people report, like eye redness or a darkened lash line.

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. Some people do report eye or eyelid irritation, redness, or a darkened lash line. Rodan and Fields recommends a patch test before your first full application, and starting at a reduced frequency if you have sensitive skin or eyes.

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 runs out in about two months anyway.

Can I use Rodan and Fields Lash Boost with contacts or eyelash extensions?

It’s safe for contact lens wearers. Rodan and Fields doesn’t recommend using it if you have eyelash extensions.

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.

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 60 days of your purchase date. They won’t issue a refund outside that window, 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. GrandeLASH-MD works well and costs about $23 a month, but it irritated my eyes after a few weeks. Babe Lash, now called Babe Original, was gentler on my eyes but didn’t grow my lashes as quickly. Rodan and Fields Lash Boost has consistently given me the fastest, most noticeable growth, which is why I keep going back to it at the higher price.

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.