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In partnership with RE:YOU. Editor’s Note: We only select and work with partners that meet our quality standards, so you can rest assured we only endorse products we believe in.
One thing I’ve gained over the past 10 years is a significant fear of hair loss.
Hormones, stress, a dissolved microbiome (from four years of living in NYC), suspected genetics—so many different factors have affected my hair cycles throughout the years. Because of the losses I have grieved, I have become so hair-morphic (aka hyper-aware of every shed and shift in density, even when those changes might not be obvious to anyone else) that my haircare routine has started to overwhelm my skin, body, and self-care schedule.
And the worst / best part? I know I’m not alone.
Every day, I see ads for hair growth—peptides, hair serums, scalp scrubs, “special” shampoo / conditioner combos, supplements, injections, topical sprays, even hair transplants in Turkey—making it clear that both men and women are concerned and desperately trying to get to the root of the problem before things go bare.
RE:YOU isn’t buying what these brands are selling. Their household Dual-Path Hair Revival Serum uses proprietary technology that has been developed through advanced molecular discovery to target multiple biological pathways that influence hair health and vitality, and they’ve got the data to back it up.
I gave it a go for 30 days to see if 1) I could be consistent with it 2) notice results and 3) I approved of its biotech-led ingredient list, promising to outperform topical solutions like Minoxidil.
TL;DR My Quick, 30-Day Take
Thirty days is earlier than RE:YOU’s recommended 90-day trial period, but by the end of my first month, I was already seeing a noticeable crop of baby hairs along my hairline and part—and less hair collecting in my brush and shower. More on my results below, but up top it’s worth understanding why this serum is so different from the approximately one million hair-growth products I’ve tried before.
Why Is Hair Loss Even Happening?
Sometimes I find myself in my photo archives, putting on my very own trichologist hat, trying to analyze my different hair patterns and cycles throughout the different stages of my life.
Even if you haven’t experienced significant hair loss, the odds are you’ve likely experienced significant hair change. That’s because a full hair growth cycle typically lasts between two and seven years on average. Each individual hair follicle goes through this repeating cycle independently (there are four phrases!!), causing the old hair to fall out as a new cycle begins.
However—and this is where it gets dicey—as you get older and experience hormonal changes (shoutout to my peri and meno queens!), stress, immune system dysfunction, or any form of chronic inflammation, your hair follicles can take a hit.
For example, significant stress – or rapid weight loss from GLP-1 – can cause telogen effluvium, where an unusually large number of follicles enter their resting phase at the same time, creating a ton of hair loss all at once (and might be delayed from when the stress initially hits!). Hormonal changes, on the other hand, can cause shifts in estrogen, progesterone, and androgens—whether from pregnancy, birth control, thyroid issues, or hormonal transitions—disrupting the hair cycle and, in androgen-sensitive follicles, contributing to “miniaturization,” where new strands can grow progressively finer than the ones that preceded them.
The Thing About the Other Hair Treatments
If you’re a part of the wellness revolution *puts fist into the air* then you—like me—have welcomed the onslaught of more natural, sciencey, skincare-y hair serums that have hit the market over the past few years in lieu of over-the-counter topical treatments containing minoxidil (which we’ll talk about shortly).
BUT, even though the packaging is sexy and promising, most of them are actually built on ingredients that are not only decades-old, but were also never actually developed for hair loss. They were—instead—repurposed from other categories and then marketed towards hair because they showed tangential benefit, which means they were never optimized for efficacy or safety as it specifically relates to hair loss.
For those of you without your wellness fists in the air, you might be wondering, “Well, what about my good ol’ friend minoxidil? My friends say it’s the gold standard, and has been around forever!”
Sure, fine, but minoxidil doesn’t get to the root for the sake of reversal. Think of it like a tape on a cracked sink pipe. There is no longer water flowing out, but the crack still exists, and that method can include some downsides like needing to take it long term, scalp issues or irritation, initial shedding, or even dizziness. Gross!
What RE:YOU Is Doing Differently
RE:YOU wants the proof to be in the pudding (serum).
Co-founded by Lan Tang and Yvonne Yao with women’s hair thinning at the center of its mission (and board-certified dermatologist Dr. Daniel Sugai guiding the brand’s medical strategy as Chief Medical Officer) RE:YOU looked to biotech to lead with science first, and then build from there.
They invested nearly $5M into AI-augmented molecule discovery, screening 20 million compounds, landing on NOVOGRO™—three brand-new, proprietary molecules designed specifically to support the biological pathways behind hair health, rather than repurposed from somewhere else entirely. These molecules work from the inside out to support dermal papilla cell activity (the command center of growth) at the root of hair growth while creating a healthy scalp environment…without any side effects.
The Dual-Path Hair Revival Serum was uniquely formulated to address multiple biological pathways at once—which is especially important given multiple factors are typically at the root cause of hair loss / thinning. It’s hormone-free and water-based, delivering a non-greasy application that makes it seamless for daily use.
Most notably, the serum outperforms minoxidil. In a 190-person, double-blind, machine and expert-graded clinical trial against minoxidil, 70% more (or 1.7x more) people saw RE:YOU help them with overall thinning of their hair. RE:YOU users had 58% less hair loss on average when measured by combing and hair counting (an extremely rigorous process), which is 26% better than what minoxidil showed in the same study in 90 days.
My Literal Growth
I’ve been using hair serums for years now—all of them. Day, night, exfoliating, hydrating, volumizing—all of them. This made me both very open and very curious about what was going to be different about RE:YOU’s dual pathway mechanism.
I first have to clarify two things: Firstly, my hair is—in general—on a rebuilding upswing, and secondly, RE:YOU recommends a 90-day trial period vs. just 30, so technically my growth period might still be ± ~in process.~
From the get-go, I loved the texture of the Dual-Path Hair Revival Serum. Because it’s water-based, it really delivered on a non-greasy feel and texture, which also meant that my hair never felt weighed down. As a wavy-haired woman, my hair wakes up and chooses violence most days, so anything I add can completely set the stage for an unpredictable hoopla. Hence thereforth, I was very relieved to see that the serum itself didn’t compromise the actual style of my hair.
I applied it every night before bed on a dry scalp, using 1-2 dropperfuls across my scalp and self-perceived “problem areas.” I then used my handy, dandy scalp massager (free with purchase!) to massage it deeper into the scalp because—as a Virgo—I am a woman of SCIENCE and EFFICACY.
While I know it might be too soon to tell, I will say that—after a month of use—I am seeing a mega increase in little shards of baby hairs on the front of my hairline as well as across my part. I also noticed less hair fall in the shower and in my brush, which is measurable for me, given I only wash my hair twice a week. Seeing even minor results made me excited to stick with it and even ramp up my haircare routine.
And If You’re Still Not Sure…
I went to a psychic recently (one of six in one year, don’t worry), and she was so sure about her craft, she said, “If you don’t feel the first 30 minutes resonate, I will end the session and you don’t have to pay anything.” I obviously stayed for the full 90 minutes!
RE:YOU is approaching the first 90 days of use with the same confidence. If you don’t feel satisfied within the first 90 days, they will give you a refund without needing to ship anything back. They also don’t want you to have to rely on the serum forever–unlike minoxidil. You can reduce usage to once a week or every few days over a 6-to-12-month period without experiencing withdrawal or shedding.
