Hair Growth Serum | South Moon

(70 customer reviews)

$64.65

In Stock

Hair Growth Product by South Moon. Nourishes scalp, strengthens follicles, and promotes healthier hair growth.

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South Moon Hair Treatment – Strengthening & Revitalizing

If your hair’s been falling out more than usual, this South Moon formula is worth a serious look.

What it does: strengthening. That’s the main thing, and it does it well.

What Makes This One Different

  • Strengthening — the specific concerns this targets
  • South Moon — a brand that’s been in the hair care space for a while
  • All hair types — works on straight, wavy, curly, coily, color-treated, you name it

How to Use It

Apply as directed on the packaging. Consistency is key with any hair care product — stick with it for at least a few weeks.

The Honest Truth

Let’s be real — no single product is magic. But if you use this consistently and pair it with a decent overall routine, you should notice a difference within a month or so.

Looking for a reliable hair care product? The South Moon hair care product is a popular pick for good reason. It’s formulated for strengthening, making it a practical choice for everyday hair care. Browse our full selection of hair growth serums oils to compare options and find the right fit for your hair.

70 reviews for Hair Growth Serum | South Moon

  1. Ethan Smith (verified owner)

    Love this. growth is real and my hairdresser noticed too.

  2. Victoria Harris (verified owner)

    Decent product. moisture is noticeable after about 3 weeks of use.

  3. Aaron Sanchez (verified owner)

    After trying what feels like a hundred different products, I finally found something that works for my hair. I put it on at night and wash it out the next morning – that overnight soak really helps. I specifically wanted something with the formula because I’d read about its benefits for hair health, and this delivers. Even in dry weather, my hair stays hydrated and doesn’t get that crackly texture. The elasticity is back – my hair bends without breaking. 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. This is the real deal – not another overhyped product.

  4. Camila Thompson (verified owner)

    I’m in my 40s and my hair has been thinning steadily – this gave me hope again. I use this after washing my hair while it’s still damp, focusing on the roots. My ends feel strong and healthy instead of frayed and split. This is the real deal – not another overhyped product.

  5. Owen Thomas (verified owner)

    I bought this on a recommendation from a friend and I’m so glad I did. I use it twice a day, morning and night, on clean dry scalp areas. The regrowth along my temples is visible enough that friends have asked what I’m using. Can’t recommend this enough for anyone struggling with their hair.

  6. Abigail Robinson (verified owner)

    My hair feels thicker and the shedding stopped. The the formula is the real deal.

  7. Elizabeth Jones (verified owner)

    I’m happy with the results so far, though I had to be patient to see them. I massage it into my scalp with my fingertips for about 2 minutes each application. I’m seeing some new growth, though it’s been slower than I hoped. Solid choice, just manage your expectations on speed of results.

  8. Hannah Perez (verified owner)

    My hair feels thicker and the shedding stopped. The the formula is the real deal.

  9. Riley Thompson (verified owner)

    I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. I put it on at night and wash it out the next morning – that overnight soak really helps. I specifically wanted something with the formula because I’d read about its benefits for hair health, and this delivers. The irritation from other products disappeared once I switched to this. The elasticity is back – my hair bends without breaking. It took about 4 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.

  10. Lily Hernandez (verified owner)

    I’ve recommended this to three people already because the results speak for themselves. I section my hair and apply drop by drop directly to the scalp, then massage gently. I don’t get that tight, itchy feeling anymore, even between washes. Do yourself a favor and get this.

  11. Grace Lewis (verified owner)

    I’m on my second bottle and I’m seeing the results I was hoping for, slowly but surely. I put it on at night and wash it out the next morning – that overnight soak really helps. My scalp feels healthier overall, though I need to use it consistently for it to work. I’m satisfied enough to repurchase, which says something.

  12. Eleanor Nguyen (verified owner)

    I’m in my 40s and my hair has been thinning steadily – this gave me hope again. I use it twice a day, morning and night, on clean dry scalp areas. My scalp feels balanced – not oily, not dry, just healthy. Can’t recommend this enough for anyone struggling with their hair.

  13. Joseph Wilson (verified owner)

    After trying what feels like a hundred different products, I finally found something that works for my hair. I put it on at night and wash it out the next morning – that overnight soak really helps. The hydration lasts for days between washes instead of evaporating by day two. This is the real deal – not another overhyped product.

  14. Mila Perez

    I bought this on a recommendation from a friend and I’m so glad I did. I put it on at night and wash it out the next morning – that overnight soak really helps. The moisture balance is perfect – not greasy at the roots, not dry at the ends. I only wish I’d started using it sooner.

  15. Aaron Wright (verified owner)

    I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I use it twice a day, morning and night, on clean dry scalp areas. Since the formula is a key ingredient, I feel confident this is doing something real, not just coating my hair. I’m seeing real density improvement at my crown where my scalp used to show through. The moisture balance is perfect – not greasy at the roots, not dry at the ends. 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. This is the real deal – not another overhyped product.

  16. Jonathan Torres (verified owner)

    I’ll finish the bottle but I’m not sure I’d buy it again. We’ll see how the next few weeks go. I massage it into my scalp with my fingertips for about 2 minutes each application. Maybe the the formula works for others but my hair isn’t responding to it. I see minimal new growth and the progress is frustratingly slow. Helped slightly with itching but the flaking is still there. Patience is important with hair products. I gave it 10 weeks before writing this review. It might work better for someone with different hair concerns.

  17. Noah King (verified owner)

    After trying what feels like a hundred different products, I finally found something that works for my hair. I use this after washing my hair while it’s still damp, focusing on the roots. My hair doesn’t snap off when I brush it anymore – the breakage is practically gone. Do yourself a favor and get this.

  18. Jackson Hill (verified owner)

    This has been working for me but I had to figure out the right way to use it. I apply a few drops to my scalp every night before bed and massage it in. There are baby hairs coming in along my temples – progress is real but gradual. Not perfect but definitely above average.

  19. Joseph Robinson

    I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. I put it on at night and wash it out the next morning – that overnight soak really helps. The hydration lasts for days between washes instead of evaporating by day two. I only wish I’d started using it sooner.

  20. Zoe Robinson (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 twice a day, morning and night, on clean dry scalp areas. My ends feel strong and healthy instead of frayed and split. Do yourself a favor and get this.

  21. Luke Anderson (verified owner)

    I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. A little goes a long way – I use 3-4 drops along my hairline and crown area. I can see new baby hairs sprouting along my hairline where it had been thinning. Definitely worth the investment for anyone dealing with similar hair concerns.

  22. Daniel Jones (verified owner)

    Decent product. growth is noticeable after about 3 weeks of use.

  23. Sofia Anderson (verified owner)

    My hairdresser actually commented on how much healthier my hair looks since I started using this. I put it on at night and wash it out the next morning – that overnight soak really helps. My hair doesn’t feel like straw anymore – it’s genuinely moisturized from root to tip. Five stars without hesitation.

  24. Daniel White (verified owner)

    This has been working for me but I had to figure out the right way to use it. I apply a few drops to my scalp every night before bed and massage it in. I’m seeing some new growth, though it’s been slower than I hoped. I’d recommend it with the caveat that you need to be patient and consistent.

  25. Elijah Hernandez (verified owner)

    I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I use it twice a day, morning and night, on clean dry scalp areas. My dry, brittle ends have transformed into something that actually feels soft and hydrated. This is the real deal – not another overhyped product.

  26. Eleanor Ramirez (verified owner)

    I’m in my 40s and my hair has been thinning steadily – this gave me hope again. I massage it into my scalp with my fingertips for about 2 minutes each application. I can see new baby hairs sprouting along my hairline where it had been thinning. If you’re on the fence, just try it. You won’t regret it.

  27. William Walker (verified owner)

    I’ve seen minor improvements but nothing that makes me want to rave about it. I massage it into my scalp with my fingertips for about 2 minutes each application. I wish the the formula was higher concentration – might explain the mediocre results. The moisture lasts about a day then my hair is back to being dry. It works for a few days then seems to stop being effective. I know hair products can take time, so I used it faithfully for 7 weeks before reviewing. It might work better for someone with different hair concerns.

  28. Olivia Nguyen (verified owner)

    I’m in my 40s and my hair has been thinning steadily – this gave me hope again. I use it twice a day, morning and night, on clean dry scalp areas. I don’t get that tight, itchy feeling anymore, even between washes. Definitely worth the investment for anyone dealing with similar hair concerns.

  29. Luke Scott

    After postpartum hair loss wrecked my confidence, this product helped me feel like myself again. I use this after washing my hair while it’s still damp, focusing on the roots. The moisture balance is perfect – not greasy at the roots, not dry at the ends. This is the real deal – not another overhyped product.

  30. Theodore Flores (verified owner)

    Visible moisture after 4 weeks. The the formula formula is excellent.

  31. David Clark

    This works. the formula + consistent use = visible results in 3 weeks.

  32. Benjamin Miller (verified owner)

    I’ve recommended this to three people already because the results speak for themselves. I section my hair and apply drop by drop directly to the scalp, then massage gently. The hydration lasts for days between washes instead of evaporating by day two. I’ve already repurchased and will keep this in my routine indefinitely.

  33. Theodore Perez (verified owner)

    I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. A little goes a long way – I use 3-4 drops along my hairline and crown area. I specifically wanted something with the formula because I’d read about its benefits for hair health, and this delivers. The elasticity is back – my hair bends without breaking. The irritation from other products disappeared once I switched to this. 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. If you’re on the fence, just try it. You won’t regret it.

  34. Nora Moore (verified owner)

    I’m on my second bottle and I’m seeing the results I was hoping for, slowly but surely. I use it twice a day, morning and night, on clean dry scalp areas. My dry ends have improved, though the effect doesn’t last as long as I’d like. Not perfect but definitely above average.

  35. Scarlett Thompson (verified owner)

    The difference in my hair texture and growth is something I can actually see and feel. A little goes a long way – I use 3-4 drops along my hairline and crown area. My scalp feels balanced – not oily, not dry, just healthy. This is the real deal – not another overhyped product.

  36. Sofia Walker (verified owner)

    Actually works. My scalp feels healthier and I see new growth. The the formula makes a difference.

  37. Natalie Anderson (verified owner)

    Works well for scalp. Not instant but steady progress. Would repurchase.

  38. Mason Miller

    Worth every penny. moisture within a month of daily use.

  39. Theodore Williams (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 this after washing my hair while it’s still damp, focusing on the roots. The the formula is what sets this apart from other products I’ve used – you can feel the quality. The hydration lasts for days between washes instead of evaporating by day two. I can see new baby hairs sprouting along my hairline where it had been thinning. For anyone just starting, give it at least 4 weeks before deciding if it works for you. Hair growth cycles are slow. If you’re on the fence, just try it. You won’t regret it.

  40. John Gonzalez

    My partner noticed the difference before I even said anything about using a new product. I use it twice a day, morning and night, on clean dry scalp areas. My hair doesn’t snap off when I brush it anymore – the breakage is practically gone. Do yourself a favor and get this.

  41. Sebastian Thomas (verified owner)

    I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. I massage it into my scalp with my fingertips for about 2 minutes each application. The hydration lasts for days between washes instead of evaporating by day two. Honestly the best hair product purchase I’ve made this year.

  42. Zoey Clark

    I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. I apply a few drops to my scalp every night before bed and massage it in. The the formula in this formula really seems to make a difference – my hair responds to it better than anything else I’ve tried. The redness on my scalp cleared up within a week of using this. The elasticity is back – my hair bends without breaking. 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. Five stars without hesitation.

  43. Samuel Williams (verified owner)

    I’m in my 40s and my hair has been thinning steadily – this gave me hope again. A little goes a long way – I use 3-4 drops along my hairline and crown area. The the formula in this formula really seems to make a difference – my hair responds to it better than anything else I’ve tried. The shedding in the shower has reduced dramatically – maybe 80% less hair in the drain. I can run a comb through my hair without hearing that horrible snapping sound. It took about 6 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. This is the real deal – not another overhyped product.

  44. Luke Wilson (verified owner)

    This has earned a permanent spot in my hair care routine. Can’t imagine being without it now. I use this after washing my hair while it’s still damp, focusing on the roots. Since the formula is a key ingredient, I feel confident this is doing something real, not just coating my hair. I don’t get that tight, itchy feeling anymore, even between washes. I can see new baby hairs sprouting along my hairline where it had been thinning. 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. Can’t recommend this enough for anyone struggling with their hair.

  45. Christian Jackson (verified owner)

    Wish I had found this years ago. My hair feels completely different now. I apply a few drops to my scalp every night before bed and massage it in. The the formula is what sets this apart from other products I’ve used – you can feel the quality. My dry, brittle ends have transformed into something that actually feels soft and hydrated. The redness on my scalp cleared up within a week of using this. For anyone just starting, give it at least 7 weeks before deciding if it works for you. Hair growth cycles are slow. Honestly the best hair product purchase I’ve made this year.

  46. Daniel Wright (verified owner)

    I’ve been struggling with thinning hair for years and this is the first thing that actually made a visible difference. A little goes a long way – I use 3-4 drops along my hairline and crown area. Since the formula is a key ingredient, I feel confident this is doing something real, not just coating my hair. I’m seeing real density improvement at my crown where my scalp used to show through. The irritation from other products disappeared once I switched to this. 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.

  47. Benjamin Lee (verified owner)

    Visible growth after 4 weeks. The the formula formula is excellent.

  48. Abigail Thomas (verified owner)

    I’m on the fence. Some things I like, some things I don’t. Still deciding if I’ll repurchase. I put it on at night and wash it out the next morning – that overnight soak really helps. The moisture lasts about a day then my hair is back to being dry. I wanted to love it but it’s just okay.

  49. Ava Allen (verified owner)

    My partner noticed the difference before I even said anything about using a new product. I section my hair and apply drop by drop directly to the scalp, then massage gently. My hair doesn’t snap off when I brush it anymore – the breakage is practically gone. This product restored my confidence in my hair.

  50. Natalie Jackson (verified owner)

    This has earned a permanent spot in my hair care routine. Can’t imagine being without it now. I put it on at night and wash it out the next morning – that overnight soak really helps. My ends feel strong and healthy instead of frayed and split. Five stars without hesitation.

  51. Olivia Davis (verified owner)

    Visible strength after 4 weeks. The the formula formula is excellent.

  52. Ellie Martin (verified owner)

    I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I put it on at night and wash it out the next morning – that overnight soak really helps. The hydration lasts for days between washes instead of evaporating by day two. This is the real deal – not another overhyped product.

  53. David Lopez (verified owner)

    I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. I put it on at night and wash it out the next morning – that overnight soak really helps. The moisture balance is perfect – not greasy at the roots, not dry at the ends. This is the real deal – not another overhyped product.

  54. Harper Lewis (verified owner)

    This works. the formula + consistent use = visible results in 3 weeks.

  55. Victoria Martinez (verified owner)

    I noticed improvement after about three weeks of consistent use – not dramatic but real. I massage it into my scalp with my fingertips for about 2 minutes each application. The cooling sensation is nice but the relief is temporary – I need to reapply. Solid choice, just manage your expectations on speed of results.

  56. Jacob King (verified owner)

    After postpartum hair loss wrecked my confidence, this product helped me feel like myself again. I put it on at night and wash it out the next morning – that overnight soak really helps. Since the formula is a key ingredient, I feel confident this is doing something real, not just coating my hair. The hydration lasts for days between washes instead of evaporating by day two. I’m losing way fewer hairs when I style – the tensile strength has definitely improved. For anyone just starting, give it at least 4 weeks before deciding if it works for you. Hair growth cycles are slow. Honestly the best hair product purchase I’ve made this year.

  57. Luna Garcia (verified owner)

    After trying what feels like a hundred different products, I finally found something that works for my hair. I put it on at night and wash it out the next morning – that overnight soak really helps. The shedding in the shower has reduced dramatically – maybe 80% less hair in the drain. Honestly the best hair product purchase I’ve made this year.

  58. Sofia Clark

    Love this. moisture is real and my hairdresser noticed too.

  59. Riley Rodriguez

    Actually works. My scalp feels healthier and I see new growth. The the formula makes a difference.

  60. Caleb Lopez (verified owner)

    After postpartum hair loss wrecked my confidence, this product helped me feel like myself again. I massage it into my scalp with my fingertips for about 2 minutes each application. The irritation from other products disappeared once I switched to this. I’ve already repurchased and will keep this in my routine indefinitely.

  61. Layla Wright (verified owner)

    It’s not bad, it’s just not particularly impressive either. Middle of the road for me. I apply a few drops to my scalp every night before bed and massage it in. The the formula content was why I bought this, but it doesn’t seem concentrated enough to make a real difference. The shedding didn’t decrease much – maybe slightly less but nothing dramatic. Helped slightly with itching but the flaking is still there. I know hair products can take time, so I used it faithfully for 7 weeks before reviewing. Not terrible, just not worth the price for the results I got.

  62. Jack Ramirez

    Worth every penny. scalp within a month of daily use.

  63. Matthew Taylor (verified owner)

    I’ve been using this for about six weeks and I’m seeing real progress, though it’s not perfect. I apply a few drops to my scalp every night before bed and massage it in. I can tell the the formula is doing something, I just wish the overall formula was a bit more potent. The itching has mostly stopped but I still get occasional dry patches. I’d estimate about 60-70% less breakage since I started using this. 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. Four stars because it works, just not as fast as I’d hoped.

  64. Olivia Taylor (verified owner)

    Happy with the growth. Wish it worked faster but it does work.

  65. Emily Garcia (verified owner)

    I’ve spent so much money on treatments that didn’t work – this one is worth every penny. I put it on at night and wash it out the next morning – that overnight soak really helps. I specifically wanted something with the formula 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. My dry, brittle ends have transformed into something that actually feels soft and hydrated. For anyone just starting, give it at least 6 weeks before deciding if it works for you. Hair growth cycles are slow. Honestly the best hair product purchase I’ve made this year.

  66. Charlotte Thomas (verified owner)

    I’m on my second bottle and I’m seeing the results I was hoping for, slowly but surely. I put it on at night and wash it out the next morning – that overnight soak really helps. I’d estimate about 60-70% less breakage since I started using this. I’m satisfied enough to repurchase, which says something.

  67. Jayden Wilson (verified owner)

    It’s okay. Not much moisture for the price. Might work for others.

  68. Benjamin Anderson (verified owner)

    After trying what feels like a hundred different products, I finally found something that works for my hair. I massage it into my scalp with my fingertips for about 2 minutes each application. The moisture balance is perfect – not greasy at the roots, not dry at the ends. If you’re on the fence, just try it. You won’t regret it.

  69. Elizabeth King (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 a few drops to my scalp every night before bed and massage it in. The the formula is what sets this apart from other products I’ve used – you can feel the quality. Even in dry weather, my hair stays hydrated and doesn’t get that crackly texture. I don’t get that tight, itchy feeling anymore, even between washes. 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.

  70. John Wright (verified owner)

    I was skeptical at first because I’ve been burned by so many products before, but this one really delivers. I put it on at night and wash it out the next morning – that overnight soak really helps. I’m losing way fewer hairs when I style – the tensile strength has definitely improved. Honestly the best hair product purchase I’ve made this year.

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