Micro-infused for thicker-looking hair.
★★★★★Rated 4.7/5 by thousands of menMost hair products sit on your scalp. TREVO gets the serum in it. Each month: 1 sterile gold-plated device + 3 sealed 5 ml serum vials.
What makes it different?
The device stamps 24 gold-plated 0.5 mm needles straight down between your hairs, so the serum goes into your scalp instead of sitting on top of your hair.
Does it hurt?
No. Customers describe a light tingle, and many say they feel nothing at all. No numbing cream needed.
How do I use it?
Once a week, about 10 minutes. 3 weeks on, 4th week off. Wash and dry your scalp, fill the device with one vial, then press it over thinning areas.
How does the money-back guarantee work?
Email support@try-trevo.com within 90 days of delivery. We process your refund within 1 business day. You keep the kit.
Ingredients
9 clinically studied actives: adenosine, caffeine, saw palmetto, red clover, acetyl tetrapeptide-3, biotinoyl tripeptide-1, panax ginseng, apigenin and oleanolic acid. Full list
Shipping
Free standard shipping with tracking, 7–14 business days. Expedited is $9.99, 5–7 business days. Shipping policy
You've tried the shampoos. You've rubbed in the serums.
Most of it sat on top of your hair and washed off.
TREVO gets the serum in your scalp, not just on it.
9 actives. Delivered where they count.
The device
24 gold-plated needles, each just 0.5 mm long, press the serum into the surface of your scalp instead of leaving it on top of your hair. Most men describe it as a light tap. No numbing cream needed.
Why not a $10 derma roller?
Real Men. Real Regrowth.
Individual results vary, and results are not guaranteed. Shown after 12–24 weeks of weekly use.
What you're paying for
Hair that looks fuller at the hairline, crown and temples.
Peptides that strengthen hair so fewer strands snap.
Caffeine and ginseng energize it; hyaluronate and panthenol hydrate it.
Drug-free. Once a week, about 10 minutes.
What to expect
Hair grows in slow cycles — judge it at 3 to 6 months.
Three sessions, then a week off. Your scalp may feel refreshed after each one. Most men see no visible change yet, and that is normal.
Many customers say they notice less shedding within the first 6 weeks.
Take photos in the same light as day one. This is when some men start to see hair that looks fuller.
Hair grows in slow cycles — judge it at 3 to 6 months. That is why the 3-month supply and the 90-day guarantee line up.
9 clinically studied actives
36 ingredients in total. We list every one, in order, on the pack and on our Ingredients page.
Full ingredient list (INCI)
Aqua, Propanediol, Butylene Glycol, Glycerin, Panthenol, Propylene Glycol, Diaminopyrimidine Oxide, Hydroxyacetophenone, 1,2-Hexanediol, Adenosine, Hydroxypropyl Cyclodextrin, Caffeine, Serenoa Serrulata Fruit Extract, Cyclodextrin, Ginkgo Biloba Extract, Alcohol, Biotin, Azelaic Acid, Panax Ginseng Root Extract, Hydrolyzed Sodium Hyaluronate, Peg-40 Hydrogenated Castor Oil, Lecithin, Pyrrolidinyl Diaminopyrimidine Oxide, Ppg-26-Buteth-26, Sodium Hyaluronate, Cholesterol, Larix Europaea Wood Extract, Glycine, Trifolium Pratense (Clover) Flower Extract, Dextran, Zinc Chloride, Camellia Sinensis Leaf Extract, Apigenin, Oleanolic Acid, Biotinoyl Tripeptide-1, Acetyl Tetrapeptide-3.
Once a week, about 10 minutes. 3 weeks on, 4th week off.
Wash and fully dry your scalp.
Fill the device with one vial and close it.
Hold it upside down for 2 minutes to load the needles.
Stamp your hairline, crown and temples with 50% overlap, 2–3 passes per area.
Apply leftover serum to thinning areas and leave it overnight. Don't wash for 6–8 hours.
Safety. Customers report a light tingle at most. Don't use on broken, irritated or infected skin, or with active psoriasis or eczema. If you're on blood thinners or have a scalp condition, ask a doctor first. Patch test before your first session. Never share a device.
How TREVO compares
Minoxidil and finasteride are approved drugs. TREVO is a cosmetic and is not a substitute for either. Side effects are from each drug's own label.
Reviews
“I was a little hesitant at first because anything involving needles sounds intimidating. After learning how the device works and how to use it properly, I felt more comfortable with the process.”
“The instructions were clear, and once I understood the steps, the routine felt pretty straightforward. I appreciate not having to add a bunch of different products to my bathroom shelf.”
“I kept putting off doing something about my hair loss. I finally decided to give TREVO a try. I’m tracking my progress with photos, and seeing how things change over time helps me stay consistent.”
“I started noticing my hair getting thinner around the front, and it was bothering me more than I wanted to admit. I’ve been using TREVO consistently, and I’m starting to feel more positive about how my hair looks. The routine is simple, and I actually stick with it.”
“I’ve been keeping an eye on my temples for ages because that’s where I noticed the thinning first. Recently, I started noticing some tiny hairs along the hairline. It’s too early to make big claims, but it’s encouraging to see, and I’m staying consistent.”
“I take pictures of my hairline every so often because it’s hard to judge changes in the mirror. In my more recent pictures, I’ve noticed some fine little hairs around the front. I’m not expecting overnight results, but seeing that has encouraged me to keep going.”
Frequently Asked Questions
Can it cause shedding?
Hair grows and sheds in cycles, so the amount you lose day to day varies naturally. If you notice a sudden increase, stop using TREVO and email support@try-trevo.com.
How long until I see results?
Many customers say they notice less shedding within the first 6 weeks. Hair grows in slow cycles — judge it at 3 to 6 months. Individual results vary, and results are not guaranteed.
Are there side effects?
Customers report a light tingle at most. Do not use on broken, irritated or infected skin, or with active psoriasis or eczema. If you take blood thinners or have a scalp condition, ask a doctor first. Patch test before your first session, and never share a device.
Can I use TREVO with minoxidil?
TREVO is a cosmetic and contains no minoxidil. If you use minoxidil or any prescription treatment, ask your doctor or pharmacist before adding TREVO to your routine.
What if it doesn't work for me?
Email support@try-trevo.com within 90 days of delivery and we refund everything you paid in your first 90 days. No need to send anything back. We process it within 1 business day; your bank usually shows it within 5–10 business days.
How do I cancel my subscription?
Go to try-trevo.com/manage, log in with your email and choose Cancel. It takes two clicks and you never need to email us. You can skip or pause there too. If you prefer, email support@try-trevo.com and we will cancel it for you.