AMZ Serum Smooth & Silky 15ml
If your hair’s so fine it won’t hold a style, this AMZ thickening product changes the game.
Comes in a 15ml size, which should last you a good while depending on how often you use it.
What Makes This One Different
- AMZ — a brand that’s been in the hair care space for a while
- 15ml — decent size for the price
- All hair types — works on straight, wavy, curly, coily, color-treated, you name it
How to Use It
Here’s how to use it: put a few drops on your fingertips, massage into the scalp where you need it most, and let it absorb. No rinsing needed. Do this consistently — once or twice a day — and give it at least 4-6 weeks before judging results.
The Honest Truth
A quick heads-up: results vary from person to person. What works great for one head of hair might take longer on another. The key is sticking with it.
Looking for a reliable hair serum? The AMZ hair serum (15ml) is a popular pick for good reason. Browse our full selection of hair thickening volumizing to compare options and find the right fit for your hair.
Aiden Thompson (verified owner) –
Actually works. My scalp feels healthier and I see new growth. The glycerin makes a difference.
Riley Walker (verified owner) –
I was ready to see a dermatologist about my hair loss but this has been working so well I haven’t needed to. I use it on clean dry scalp and don’t wash my hair for 24 hours after. The glycerin is what sets this apart from other products I’ve used – you can feel the quality. My scalp feels balanced – not oily, not dry, just healthy. The regrowth along my temples is visible enough that friends have asked what I’m using. It took about 5 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. I’ve already repurchased and will keep this in my routine indefinitely.
Avery Jackson (verified owner) –
This has been working for me but I had to figure out the right way to use it. I apply it with a dropper along my part and massage with my fingertips. My hair is definitely more hydrated, though I need to reapply every couple of days. I’m satisfied enough to repurchase, which says something.
Benjamin Lee (verified owner) –
I’m on my second bottle and I’m seeing the results I was hoping for, slowly but surely. I apply it with a dropper along my part and massage with my fingertips. The cooling sensation is nice but the relief is temporary – I need to reapply. I’d buy it again, though I’d love to see them improve a few things.
Ellie Lee –
I’ve been using this for about six weeks and I’m seeing real progress, though it’s not perfect. I use it as a targeted treatment on my thinning areas along my hairline. The glycerin is a nice touch – I think it contributes to the results I’m seeing. I can see a difference in fullness but it’s not as dramatic as some reviews suggest. The shedding has decreased noticeably but hasn’t stopped entirely. The key with any hair care product is consistency – I made it part of my daily routine and stuck with it for 6 weeks before judging the results. Worth trying if you’re looking for something in this category.
Emma White (verified owner) –
I noticed changes faster than I expected – within two weeks my hair felt different. I apply it with a dropper along my part and massage with my fingertips. The glycerin in this formula really seems to make a difference – my hair responds to it better than anything else I’ve tried. Even my stylist commented that my hair feels thicker when she works with it. I’m losing way fewer hairs when I style – the tensile strength has definitely improved. It took about 8 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. Can’t recommend this enough for anyone struggling with their hair.
Sofia Taylor (verified owner) –
The difference in my hair texture and growth is something I can actually see and feel. I apply this directly to my scalp twice a day – morning and before bed. My ends feel strong and healthy instead of frayed and split. Definitely worth the investment for anyone dealing with similar hair concerns.
Wyatt Wilson (verified owner) –
Mediocre results with growth. I’ll finish the bottle but probably won’t repurchase.
Isaiah Taylor (verified owner) –
My partner noticed the difference before I even said anything about using a new product. I apply it with a dropper along my part and massage with my fingertips. My ponytail feels thicker and my part doesn’t look as wide as it used to. Do yourself a favor and get this.
Elizabeth Wright (verified owner) –
Actually works. My scalp feels healthier and I see new growth. The glycerin makes a difference.
Natalie Thompson (verified owner) –
I’d give this 4.5 stars if I could. It’s very good but not quite perfect. I incorporate it into my nightly routine – consistency is what made the difference. The glycerin gives this product an edge over basic drugstore options. My ends are healthier than before, though not completely split-free. My hair feels denser than before, though the change isn’t dramatic. The key with any hair care product is consistency – I made it part of my daily routine and stuck with it for 8 weeks before judging the results. Worth trying if you’re looking for something in this category.
Jackson Robinson (verified owner) –
I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I apply it with a dropper along my part and massage with my fingertips. The irritation from other products disappeared once I switched to this. Can’t recommend this enough for anyone struggling with their hair.
Scarlett Brown (verified owner) –
I’m on the fence. Some things I like, some things I don’t. Still deciding if I’ll repurchase. I apply this directly to my scalp twice a day – morning and before bed. I wish the glycerin was higher concentration – might explain the mediocre results. Helped slightly with itching but the flaking is still there. I’ve been using it for two months and barely see any change in growth. I’ve been using it for 11 weeks now and while the results aren’t dramatic, there is some progress. It might work better for someone with different hair concerns.
Victoria Walker (verified owner) –
This is the one. Tried everything for scalp and finally found something that works.
William Martinez –
I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I incorporate it into my nightly routine – consistency is what made the difference. Even my stylist commented that my hair feels thicker when she works with it. Definitely worth the investment for anyone dealing with similar hair concerns.
Ella Wright (verified owner) –
Solid product. Does what it says. Just wish it worked a little faster. I use it on clean dry scalp and don’t wash my hair for 24 hours after. I can tell the glycerin is doing something, I just wish the overall formula was a bit more potent. My hair feels denser than before, though the change isn’t dramatic. My scalp feels healthier overall, though I need to use it consistently for it to work. For anyone just starting, give it at least 7 weeks before deciding if it works for you. Hair growth cycles are slow. I’m satisfied enough to repurchase, which says something.
Grace White –
I noticed changes faster than I expected – within two weeks my hair felt different. I section my hair and apply it precisely where I’m seeing the most thinning. The glycerin is what sets this apart from other products I’ve used – you can feel the quality. I can see my hair has more body and bounce, especially at the roots. The regrowth along my temples is visible enough that friends have asked what I’m using. It took about 5 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. If you’re on the fence, just try it. You won’t regret it.
Aaron Jackson (verified owner) –
I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. I use it as a targeted treatment on my thinning areas along my hairline. I’m losing way fewer hairs when I style – the tensile strength has definitely improved. Can’t recommend this enough for anyone struggling with their hair.
Aria Lopez (verified owner) –
My hair feels thicker and the shedding stopped. The glycerin is the real deal.
Adam Robinson (verified owner) –
I was ready to see a dermatologist about my hair loss but this has been working so well I haven’t needed to. I section my hair and apply it precisely where I’m seeing the most thinning. Since glycerin is a key ingredient, I feel confident this is doing something real, not just coating my hair. The moisture balance is perfect – not greasy at the roots, not dry at the ends. My scalp itch is completely gone and the flaking has stopped entirely. The key with any hair care product is consistency – I made it part of my daily routine and stuck with it for 7 weeks before judging the results. Honestly the best hair product purchase I’ve made this year.
Liam Scott (verified owner) –
My hairdresser actually commented on how much healthier my hair looks since I started using this. I apply this directly to my scalp twice a day – morning and before bed. My part looks noticeably narrower than it did two months ago. Five stars without hesitation.
Theodore Rodriguez (verified owner) –
I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. I incorporate it into my nightly routine – consistency is what made the difference. The glycerin in this formula really seems to make a difference – my hair responds to it better than anything else I’ve tried. Even in dry weather, my hair stays hydrated and doesn’t get that crackly texture. I’m losing way fewer hairs when I style – the tensile strength has definitely improved. The key with any hair care product is consistency – I made it part of my daily routine and stuck with it for 9 weeks before judging the results. This product restored my confidence in my hair.
Avery Martinez (verified owner) –
Four stars because it works, just takes time. glycerin is a nice touch.
William Wright (verified owner) –
Best I’ve tried for moisture. Noticed changes in week two.
Isaiah Hernandez (verified owner) –
Solid product. Does what it says. Just wish it worked a little faster. I apply this directly to my scalp twice a day – morning and before bed. My ends are healthier than before, though not completely split-free. Four stars because it works, just not as fast as I’d hoped.
Zoey Taylor (verified owner) –
I noticed changes faster than I expected – within two weeks my hair felt different. I incorporate it into my nightly routine – consistency is what made the difference. I specifically wanted something with glycerin because I’d read about its benefits for hair health, and this delivers. My roots have actual lift now instead of lying flat against my scalp by noon. The regrowth along my temples is visible enough that friends have asked what I’m using. It took about 8 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. Honestly the best hair product purchase I’ve made this year.
William Williams (verified owner) –
I’d give this 4.5 stars if I could. It’s very good but not quite perfect. I apply it with a dropper along my part and massage with my fingertips. My hair feels denser than before, though the change isn’t dramatic. Four stars because it works, just not as fast as I’d hoped.
Wyatt Perez (verified owner) –
The difference in my hair texture and growth is something I can actually see and feel. I use it on clean dry scalp and don’t wash my hair for 24 hours after. I love that this contains glycerin – it’s one of the few ingredients that’s actually been studied for hair growth. Even my stylist commented that my hair feels thicker when she works with it. My hair doesn’t feel like straw anymore – it’s genuinely moisturized from root to tip. It took about 3 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. I’ve already repurchased and will keep this in my routine indefinitely.
Sophia Jackson (verified owner) –
I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. I section my hair and apply it precisely where I’m seeing the most thinning. My scalp itch is completely gone and the flaking has stopped entirely. Five stars without hesitation.
Aiden Martinez (verified owner) –
I was ready to see a dermatologist about my hair loss but this has been working so well I haven’t needed to. I section my hair and apply it precisely where I’m seeing the most thinning. I’m seeing real density improvement at my crown where my scalp used to show through. This product restored my confidence in my hair.
Mason Davis (verified owner) –
I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. I use it on clean dry scalp and don’t wash my hair for 24 hours after. I love that this contains glycerin – it’s one of the few ingredients that’s actually been studied for hair growth. Even my stylist commented that my hair feels thicker when she works with it. My scalp itch is completely gone and the flaking has stopped entirely. For anyone just starting, give it at least 7 weeks before deciding if it works for you. Hair growth cycles are slow. Do yourself a favor and get this.
Abigail Lee (verified owner) –
I was ready to see a dermatologist about my hair loss but this has been working so well I haven’t needed to. I use it as a targeted treatment on my thinning areas along my hairline. The glycerin in this formula really seems to make a difference – my hair responds to it better than anything else I’ve tried. My dry, brittle ends have transformed into something that actually feels soft and hydrated. I’m seeing real density improvement at my crown where my scalp used to show through. It took about 7 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. Do yourself a favor and get this.
Chloe Thomas (verified owner) –
I’ve seen minor improvements but nothing that makes me want to rave about it. I apply this directly to my scalp twice a day – morning and before bed. It has glycerin which is supposed to help, but I’m not seeing the results I expected from it. I didn’t notice much difference in fullness after a month of use. Too heavy for my fine hair – it weighs everything down and looks greasy. I’ve been using it for 6 weeks now and while the results aren’t dramatic, there is some progress. Average product, average results. That’s about all there is to say.
Theodore Young (verified owner) –
I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I use it on clean dry scalp and don’t wash my hair for 24 hours after. I’m seeing real density improvement at my crown where my scalp used to show through. Five stars without hesitation.
Ella Davis (verified owner) –
I’ve been using this for about six weeks and I’m seeing real progress, though it’s not perfect. I apply it with a dropper along my part and massage with my fingertips. The strengthening is real but requires consistent use – skip a few days and you lose progress. I’d recommend it with the caveat that you need to be patient and consistent.
Ava Ramirez (verified owner) –
I noticed changes faster than I expected – within two weeks my hair felt different. I apply it with a dropper along my part and massage with my fingertips. I specifically wanted something with glycerin because I’d read about its benefits for hair health, and this delivers. My hair doesn’t feel like straw anymore – it’s genuinely moisturized from root to tip. My ends feel strong and healthy instead of frayed and split. It took about 3 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. Honestly the best hair product purchase I’ve made this year.
Abigail Clark (verified owner) –
I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. I apply it with a dropper along my part and massage with my fingertips. The difference in fullness is noticeable in photos – my hair looks denser. This is the real deal – not another overhyped product.
Jack Thompson (verified owner) –
My hairdresser actually commented on how much healthier my hair looks since I started using this. I incorporate it into my nightly routine – consistency is what made the difference. Even in dry weather, my hair stays hydrated and doesn’t get that crackly texture. Definitely worth the investment for anyone dealing with similar hair concerns.
Natalie Jones (verified owner) –
I bought this on a recommendation from a friend and I’m so glad I did. I incorporate it into my nightly routine – consistency is what made the difference. My roots have actual lift now instead of lying flat against my scalp by noon. Five stars without hesitation.
Eleanor Clark –
The difference in my hair texture and growth is something I can actually see and feel. I use it as a targeted treatment on my thinning areas along my hairline. I specifically wanted something with glycerin because I’d read about its benefits for hair health, and this delivers. I can run a comb through my hair without hearing that horrible snapping sound. I can see new baby hairs sprouting along my hairline where it had been thinning. For anyone just starting, give it at least 7 weeks before deciding if it works for you. Hair growth cycles are slow. Do yourself a favor and get this.
Jacob Garcia –
After postpartum hair loss wrecked my confidence, this product helped me feel like myself again. I apply it with a dropper along my part and massage with my fingertips. I love that this contains glycerin – it’s one of the few ingredients that’s actually been studied for hair growth. The regrowth along my temples is visible enough that friends have asked what I’m using. The moisture balance is perfect – not greasy at the roots, not dry at the ends. For anyone just starting, give it at least 5 weeks before deciding if it works for you. Hair growth cycles are slow. Can’t recommend this enough for anyone struggling with their hair.
Sebastian Martinez (verified owner) –
I’m happy with the results so far, though I had to be patient to see them. I use it on clean dry scalp and don’t wash my hair for 24 hours after. I can tell the glycerin is doing something, I just wish the overall formula was a bit more potent. My roots have more lift than before, though I need to use it consistently to maintain the effect. I’m seeing some new growth, though it’s been slower than I hoped. It took about 5 weeks of consistent use to really see the difference, so don’t give up if you don’t notice changes in the first few days. Not perfect but definitely above average.
Addison Martin (verified owner) –
I’ve recommended this to three people already because the results speak for themselves. I use it on clean dry scalp and don’t wash my hair for 24 hours after. Even in dry weather, my hair stays hydrated and doesn’t get that crackly texture. Definitely worth the investment for anyone dealing with similar hair concerns.
Oliver Martinez –
My partner noticed the difference before I even said anything about using a new product. I use it as a targeted treatment on my thinning areas along my hairline. I can run a comb through my hair without hearing that horrible snapping sound. Honestly the best hair product purchase I’ve made this year.
Daniel Sanchez (verified owner) –
The difference in my hair texture and growth is something I can actually see and feel. I use it on clean dry scalp and don’t wash my hair for 24 hours after. The irritation from other products disappeared once I switched to this. I’ve already repurchased and will keep this in my routine indefinitely.
Theodore Brown (verified owner) –
This product is okay – not terrible but not the game-changer I was expecting. I use it as a targeted treatment on my thinning areas along my hairline. My hairline looks about the same as when I started. I wanted to love it but it’s just okay.
Aiden Garcia (verified owner) –
I noticed improvement after about three weeks of consistent use – not dramatic but real. I apply it with a dropper along my part and massage with my fingertips. The strengthening is real but requires consistent use – skip a few days and you lose progress. I’m satisfied enough to repurchase, which says something.
Scarlett Nguyen (verified owner) –
Love this. moisture is real and my hairdresser noticed too.
Noah Sanchez –
Good results with glycerin. Need consistent use to see the difference.
Ethan Lopez (verified owner) –
I was ready to see a dermatologist about my hair loss but this has been working so well I haven’t needed to. I use it on clean dry scalp and don’t wash my hair for 24 hours after. The moisture balance is perfect – not greasy at the roots, not dry at the ends. Can’t recommend this enough for anyone struggling with their hair.
Sofia Anderson (verified owner) –
Visible strength after 4 weeks. The glycerin formula is excellent.
Avery Walker (verified owner) –
I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I use it on clean dry scalp and don’t wash my hair for 24 hours after. Since glycerin is a key ingredient, I feel confident this is doing something real, not just coating my hair. The elasticity is back – my hair bends without breaking. My hair doesn’t feel like straw anymore – it’s genuinely moisturized from root to tip. The key with any hair care product is consistency – I made it part of my daily routine and stuck with it for 6 weeks before judging the results. Five stars without hesitation.
Zoe Jones –
This has earned a permanent spot in my hair care routine. Can’t imagine being without it now. I incorporate it into my nightly routine – consistency is what made the difference. I can run a comb through my hair without hearing that horrible snapping sound. This product restored my confidence in my hair.
Mia Lewis (verified owner) –
My hairdresser actually commented on how much healthier my hair looks since I started using this. I apply it with a dropper along my part and massage with my fingertips. I don’t get that tight, itchy feeling anymore, even between washes. I’ve already repurchased and will keep this in my routine indefinitely.