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The Ordinary Multi-Peptide Serum for Hair Density 60ml

4.1 of 165 reviews


4 instalments of $7.50

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4 instalments of $7.50

Or 4 instalments of $7.50 with LEARN MORE

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Introducing the first hair product by The Ordinary, the Multi-Peptide Serum for Hair Density! This concentrated serum strives to deliver fuller, denser, healthier and thicker locks by deeply penetrating the scalp to encourage circulation and promote healthy hair follicles. Made with a cocktail of potent natural extracts, peptide complexes and caffeine powder, this lightweight hair serum has an emollient base to ensure efficient penetration.

  • Cruelty Free
  • Vegan

What customers say

GREAT - 78% recommend

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Hair Concern:

  • Fine or limp hair
  • Thinning hair
  • Breakage and split ends

Hair Curl Type:

  • Curly
  • Straight
  • Very curly/African/Caribbean
  • Wavy

Hair Texture:

  • Fine
  • Medium
  • Coarse

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The Ordinary Multi-Peptide Serum for Hair Density

The Ordinary Multi-Peptide Serum for Hair Density

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The Ordinary Multi-Peptide Serum for Hair Density Reviews

4.1 of 165 reviews

78% recommend this product

  1. 79

  2. 65

  3. 22

  4. 13

  5. 2

Most Helpful Positive



I've been using this on my hairline and my eyebrows (over-plucked as a teenager), and so far I am seeing some baby hairs growing, and it looks like they're starting to fill in. This is pretty surprising to me as I've tried castor oil and all sorts of other things before. Fingers crossed for more. Also the consistency is really good.

Most Helpful Criticism

Not great


Didn't absorb into my hair well, leaving it greasy. Really wanted to see amazing results but just didn't.
  1. Great product


    I've been using this for the past few weeks and have noticed a difference. My scalp feels less irritated and my doesn't fall out as much
  2. This product needs to use continuously if you want to see result.


    This product needs to use continuously if you want to see result.
  3. Promising


    I've been using this on my hairline and my eyebrows (over-plucked as a teenager), and so far I am seeing some baby hairs growing, and it looks like they're starting to fill in. This is pretty surprising to me as I've tried castor oil and all sorts of other things before. Fingers crossed for more. Also the consistency is really good.
  4. not bad


    its not oily, and make my hair line looks full and healthy
  5. No chage so far


    I have bee using this product for the past month but haven't seen any change in my hair so far. Will keep using and update if there is any change.
  6. Use when due for a hair wash


    I have been using this product for a month now, and haven't noticed any difference. However, I am hopeful over time I will notice a change, especially as I haven't used much of the bottle yet. My recommendation would be to use it closer to when you are due to wash your hair, so the oiliness isn't as noticeable. This has worked for me!
  7. Leaves a residue


    I wasn't able to use this for too many consecutive days as it made my scalp a little itchy and it left my hair feeling tacky and greasy-looking, despite the texture of the product being watery.
  8. Actually works!


    Like all hair density products i was a little skeptical however after using this for a few weeks I’ve already notified my baby hairs around my face have been growing out and have definitely become thicker! I’ve been using every few nights just before i go to bed, I haven’t noticed it making my hair greasy at all
  9. Hair gets less oily


    Continue using this product for a while, to be honest, it's as good or even better than Aveda I would say. At this price point, it's hard to find something to beat it. I have recommended all my friends and families to try this. I used to wash my hair every couple of days, now I only wash my hair every 3 days. Hair gets less oily after using the product. I can't see hair density increase but hair d...
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  10. Not much change


    I have been using this for a while now, but have not any difference to my hair.
  11. ordinary


    love this product i have notice a difference in my hair line my hair feels more full
  12. Have helped thicken my hair


    I used to have very lush hair which has gradually thinned with age. I started using this before bedtime a few months ago but I haven’t used it very religiously. I don’t find it greasy at all and I use very generous amounts each time, but then my hair is very dry, so it might be better for dry hair than for normal hair. This serum has helped thicken my hair either by promoting regrowth or preventin...
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  13. Noticed Results


    I've noticed results having used this product. My hair is definitely stronger and I'm noticing fewer breakaways
  14. LOVEE


    This is the best. It has a neutral smell and makes your hair feel so healthy, strong and luscious.
  15. Great


    This is pretty easy to use and implement into your hair care routine, I love the ordinary products
  16. not sure


    not sure on these, did not notice much and it is hard to get the product all over your scalp
  17. hair serum


    can be greasy so I only wear to bed, but otherwise it seems to make my hair less prone to breakage
  18. hair peptide serum


    personally didn't notice many results from this, it made my hair greasy and didn't absorb. Would recommend wearing a nightcap over this when you use overnight to reduce the greasy feeling
  19. Truly works- it has filled in my bald patches!


    I have quite a few patches of hair missing and this product did as promised! Not only have the hairs filled in the sparse areas but my hair no longer sheds as much. It is a game changer! I will continue to repurchase
  20. Great stuff


    I have genuinely noticed a difference in my hair with this serum! Lots of new baby hairs are growing longer, making my hairline look good. Added bonus, seems to hydrate my scalp and dryness/flakiness is reducing.
  21. Amazing Product - great addition for hormonal hair loss


    I love this product, swear by it. I have struggled with male pattern like hair loss for years with thinning around the hair line and temples . Whilst I have worked on my hormones internally I never tried anything to support topically. This stuff works to help restimulate the hair from the outside! I recommend massaging it in into the scalp or rolling with a face roller before and after to ensure t...
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  22. Dried my hair out


    I have fine hair that is bleached (last time was 6 months ago) the first few times I used it no problems sneaks nice didn’t make my hair oily. Then all of a sudden I had uncontrollable frizz and my hair began breaking off.
  23. Honestly not sure


    This seems like a very hit or miss kind of product and for me personally, I didn't notice a great deal of effect after using this for several months. I did however like that it wasn't as greasy as I was expecting - it actually sort of gave my roots a bit more volume! I love other products from The Ordinary but I'm just not sure about this one.
  24. Patience paid off so well!


    The serum really works guys! You just need to use is with consistency. My hairline has been revived before I finished my first bottle!! Amazing product!
  25. Patience paid off so well!


    The serum really works guys! You just need to use it with consistency. My hairline has been revived before I finished my first bottle!! Amazing product!
  26. Makes hair look thicker


    The serum makes my hair look thicker and more voluminous. It absorbs well on my scalp and doesn’t leave oil/ residue. I am not entirely sure about any increase of hair growth, but I like the ‘thicker hair’ feeling so will continue on using this serum.
  27. Ideal for thin hair


    I used this every night after washing my hair, and I noticed after a few weeks that my hair felt a bit thicker and healthier.
  28. Slow improvements


    My hair has been bleached and coloured numerous times over the past 5 or so years. Breakage has reduced since using this, which is a plus. My hair is becoming more glossy.
    It takes a while for the product to absorb into your scalp so best to not apply before you sleep- product might just end up on your pillow .
  29. Not sure...


    It’s hard to spread the recommended amount of a few drops to the entire scalp, and when I use more, it leaves my hair looking greasy. I found it a bit annoying to use, so I bought Kerastase Densifique and am now using that instead.


    I have thin hair, I have been using this product for a month every night with inversion method massage and I noticed a change in my hair texture its not like from thin to thick but my hair feels healthy and also if we apply this on healthy hair growth areas it makes it thicker&healthy and also generates new hair follicles.

    I have started using derma roller in-accordance with this ser...
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  31. Not sticky and easy to absorb


    It has a water-like texture and is very absorbed. Suitable for use after washing hair. But it needs to be applied by hand. People with oily scalp also feel happy
  32. Not great


    Didn't absorb into my hair well, leaving it greasy. Really wanted to see amazing results but just didn't.
  33. great product


    loved it, it definitely made my looks and feel healthier. I have curly hair and tried all sort of products to lessen the loss of hair and reduced thinning of my hair. will repurchase.
  34. Did not work for me


    Used this for months and saw no lessening of hair fall and no increased hair growth.

    Switched to the much more expensive Densifique Femme and got the results I had been hoping for.
  35. Where have you been all my life ahah


    I have tried so many expensive brands when it comes to scalp’s treatments, oils,etc. I loved this one so much! It doesn’t oil your hair, you can see a root lift straightaway and over the time the head condition gets better :) so reccomended!
  36. Not too oily


    This product has definitely made my hair fall out better. It doesn't make my hair oily and the one bottle goes a long way. definitely recommend
  37. Good product


    This product has definitely worked for me. I have seen a lot of varying reviews.
    My boyfriend has even said my hair is looking thicker ( I had all my hair snap from elbow length to shoulder length post a botched bleach job 3 years ago) Since then my hair has mostly grown back now and sits at boob-length but some parts are not quite even and I am unwilling to cut what has grown just to match ...
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  38. Happy hair


    I found that I had to use about 3 drops of this consistently to start seeing results. I also found that it made my hair oilier faster than usual.
  39. Good product!


    Good product but takes a while to show some result
  40. no difference in hair growth BUT


    No difference in hair growth/hair loss but I did notice any subsequent hair growing from where I applied it grew healthier and stronger. Undecided if I will repurchase
  41. really good product


    I love this, I have had so much new growth on my hairline and am not even halfway through the bottle! You have to be careful not to use too much or you'll get oily hair the next day, but with a few uses you'll get used to it!!
  42. Silky Smooth


    I like it, it doesn’t oil my hair which is a huge plus for me! Still needs to finish the bottle to see the difference!
  43. Mane saver


    I had suffered a lot of hair loss due to stress at the end of last year. I had tried Kerastase densifique, which I found irritating. This has helped soothe my scalp and has helped me retain and regrow hair along my hairline. I wash my hair every 5 days, so if I use it daily then my hair does look a little greasy, but I now have spaced out how often I use. Will repurchase.
  44. Excellent Product!!


    I like it, it doesn’t oil my hair which is a huge plus for me! Still needs to finish the bottle to see the difference!
  45. Curl miracle


    I have high-porosity curly Indian hair with a combination of 3B, 3C, and 4A curls. Due to water changes, poor nutrition, and a weak hair care routine, I was experiencing a lot of hair fall and volume thinning. This also caused my curls to grow limp and lose their definition.

    I have been using this product for about 4 months now, once daily before bed, and I have to say, I ABSOLUTELY ...
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  46. Good value for money


    I use this product since almost 2 months. Doesn’t grease my scalp, it doesn’t dry it either. Yet I apply half a pipette daily. Indeed, I have the sensation of a denser hair without any irritation.
    It’s difficult to say whether all these benefits are due to the properties of the product itself or to the massages that it forces to do every evening.
    I have more than half the bottle left...
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  47. Significantly Faster Hair Growth


    First of all, DO NOT USE MORE THAN A FEW DROPS! This product only needs a little bit applied every night for it to work and it lasts a long time. I have been bleaching my hair for the past 5 years (Black to Blonde) which has made my hair quite weak and reduced hair growth but since I started using this product, my hair feels much stronger at the roots and is growing so quickly! My hairdresser was ...
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  48. It really works!


    I have been using this product since April and I'm really pleased with the results. I have always had very fine hair; it is prone to breakage and splitting, and I was beginning to notice a lot of sparse areas. After about three months of use there are lots of new baby hairs growing all over my scalp! I've also noticed less fallout when washing my hair, less dandruff and more shine. My hair is gene...
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  49. it is a miracle


    i bought this product after reading the reviews but what this actually has done is amazing and saved our lot of money of hair transplant. my husband got no hair in the middle of his head and within a 1 week new hair started to come out and by 3 weeks now that area is almost full of hair. we are so happy with the product and in this price it is a blessing. would recommend this to all and also want ...
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  50. A great serum


    A really really good serum my hair did feel a lot healthier .
  51. It's okay


    I've been using this for a few months and haven't noticed a heap of difference in terms of managing split ends and breakage. I will continue to use it because it has helped prevent dandruff, so if that is a concern you're looking to fix this is good! However, I don't really know if it does actually help with breakage and split ends like it intends to.
  52. Always get compliments


    My hair has grown significantly since using this for the last year, damage has reduced and shine is always present, my hair is much more manageable too when I’m using this. Plus it’s light on and non greasy.
  53. Amazing


    I use this serum once or twice in a week and I have already started noticing a difference. My hair is definitely thicker and seem to be more healthier.
  54. Effective but proceed with caution


    This product works, I had only been using it for a month and have definitely seen an increase in new baby hairs. It did however make my scalp incredibly dry and itchy. I started using it on my eyelashes (bad idea and I certainly don't recommend this) it did make my lashes longer but also caused a horrendous allergic reaction underneath my eyes, I guess because the skin there is much thinner and mo...
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  55. Noticible Growth


    I wasn't sure about this serum to begin with, but it was reasonably priced so I thought I'd give it a go, and I think it works! After having a child, a lot of my hair around the hairline started to fall out/thin out. I noticed that the hair started growing back in after a few weeks of using this almost every night (I forgot sometimes). I'm pregnant again, but will use this after pregnancy when my ...
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  56. It works!


    I naturally have got very thin and weak hair and, honesty god, I tried so many products to make it grow stronger and more dense.. Bit not many of them work. I know that good product won’t work immediately due to slow growing nature of any hair. So after using this product for two-three months I can confidently say that I can see some baby hair on the spots where I was applying this serum. I just f...
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  57. Hair feels thicker


    I gave it a try and use it around my fringe, my hair actually feels thicker, healthier. I bought a bottle for husb to try, he has about three hairs on his head. To be advised lol...
  58. Great to regrow broken/damaged hair


    After a number of months using this product I have noticed a great deal more baby hairs in areas that I was wearing extension/ had blond bleach breakage - it sped up the process for growing back length but doesn't seem to speed up any growth for my healthier longer lengths.
  59. It does the scalp good


    This has cleared up my flakey scalp nicely and is a lot less itchy. I think that it has thickened my hair, but I'm not sure it's only been a month. It does feel very oily after application, but by morning my hair
    feels light and more hydrated than before I started using it.
  60. It works!


    I have been using this serum every night for the last 2 months and it has worked to make my hair healthier. I was troubled with heavy hair fall starting in March and nothing seemed to work. The trick is to massage this serum into your hair at night and not wash it off in the morning!
  61. Okay


    I have been using this for a week, and I guess it works? My hair loss has reduced, but I'm not too sure whether it was due to this product or it is simply some hormonal changes.
    On a side note, this product has a funny chips smell.
  62. Haven't noticed a difference


    Sadly I haven't noticed much of a difference from using this so far. I find that quite a few drops are needed to feel like you have sufficiently spread it across your entire scalp. I haven't had any negative effects so will keep using and hopefully, it is just one of those products that take time. I do prefer to put this on closer to when I will be washing my hair as it does speed up the need for ...
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  63. Wonderful hair serum to achieve thicker hair


    I use this serum almost every night before bed and it is wonderful. I read a number of customer reviews before purchasing this serum, and can happily say that I agree it helped the appearance of thicker hair.
  64. It works but take time


    My hair thinned a little because of a medication change. I tried several products over several months with no results. I tried this and didn't notice a difference at first but I wanted to give it at least a months. After the second week my dandruff disappeared and about the 4th week I noticed my baby hairs growing faster. I also have noticed less breakage. Give it a shot but also give it time to w...
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  65. I've just bought my third bottle


    It didn't make my hair fuller or grow faster, but at least it stopped the hair loss due to hormonal changes. I've just bought my third bottle. Its easy to use. I apply just before the bed. Not greasy, my hair looks fine next morning.
  66. Good


    So I like how this product makes my scalp feel. I havent used it long enough to notice much difference, but I do have naturally thick hair. I will buy again simply because how my scalp feel after applying the product.
  67. It’s cheap


    The second time I bought it, I used a lot of scalp essence. This one is the cheapest and effective. If the oil control effect is enhanced, it will be perfect.
  68. Amazing !!


    I use this serum almost every night before bed and it is wonderful. I read a number of customer reviews before purchasing this serum, and can happily say that I agree it helped the appearance of thicker hair.
  69. Feels nice but not sure of results yet


    I've always had fine hair and then lost a lot of it after having a baby, so turned to this product for help. I apply a generous number of drops to my scalp and massage in before bed. I only apply every couple of days (before I'm due for a wash) because otherwise my very fine hair gets greasy roots.

    My scalp always feels refreshed after applying and I do think it is healthier, not sur...
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  70. Not super effective


    I purchased this for my mum because she got a bit of hormonal hair thinning after she underwent chemotherapy - her hair never grew back well. Unfortunately she hasn't seen much difference after using it for 6 months. It probably works for people who have light hair-loss or want to thicken their thin hair.
  71. Definitely helping thinning and shedding


    I used to have a thick head of hair, but due to malabsorption issues and even taking vitamin therapy, my luscious locks have severely thinned out and continued to shed like crazy. I am a total TO devotee so it was a no brainer to try this and I am overjoyed that with consistent use it works! I dab in drops to dry hair/scalp every night and massage well with my fingertips. Not only has it improved ...
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  72. Helping my thinning hair crown


    I use it for a while already and I can already see few baby hairs. It actually works for a pretty low price.
  73. Not sure it works


    I love The Ordinary, and I really wanted to love this product, but after months of use, I don't feel it has done anything for my fine hair. I don't notice any difference at all.
  74. not sure


    really not sure about this, it is hard to tell if it does anything. I dosen't do anything bad so i'll keep using it
  75. Helped with a small receding patch of hair


    This really helped me get so growth in a receding patch of hair. It's made a big difference. I like the ordinary as it's affordable and easy to use.
  76. This works


    I have been using this for a few weeks and have noticed thicker, fuller, healthier hair growth. I have thin hair that falls out faster than it grows back. Applying this every day or two has made my hair stronger and healthier.
  77. Different but good different


    The textured definitely isn’t oily I can tell you that. More like thick water. It doesn’t have much of a smell if nothing at all which I like. Applying to my hair feeling like I haven’t done much because my hair doesn’t feel oily. After about 30mins when it has soaked in my scalp and roots felt so healthy and clean! I’m using this on thick hair to try and keep it thick and not lose much hair. Work...
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  78. 8 weeks, no results


    My daughter bought this for me because I have very fine and thin hair. After 8 weeks of religiously rubbing a few drops into my scalp every night, along with scalp massage, I can notice no improvement at all in thickness, volume or growth - only greasy roots despite only using a very small amount. I desperately wanted this to work as I use some other The Ordinary products and they are great howev...
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  79. Promotes hair growth


    My mum suffers from fine and thin hair. I bought this for her to try a couple of weeks ago and she's loving it. She said her hair is growing quicker and isn't making her hair oily when using it overnight, which was one of her worries.

  80. Not for me


    I tried this as I have thin & fine hair which post-menopause is even thinner (which seems very unfair). I was hoping to see some increase in growth and condition. But honestly, I can't say I've seen any difference after using this product for several months. Won't re-purchase.
  81. Multiple repeat purchaser


    This is fantastic for scalp and hair health. You will get fuller denser hair with repeat use.
  82. big fan


    I bought this for my sister who has thin hair, after a few months she started seeing results, so I have now started using it. Great product if you want thicker hair
  83. Sounds good but wasnt for me


    I was quite excited to try this product after reading reviews from others. I have thin hair and was hoping for more thickness. Unfortunately when I applied a few drops to my scalp as a tester, the next morning I noticed I had an allergic reaction. Lesson I learned in this experience is always do a spot test.
  84. Exactly what our scalp needs


    A quick and easy fuss free way to boost your scalp health.
    A few drops of this serum applied to the scalp and massaged in with fingers is all it takes to get those peptides doing their work.

    The serum is non greasy and almost has a water like consistency. Leaves no residue and its like you have nothing in your hair.
  85. not sure


    i am not sure about this yet. It is hard to tell if it is working, but it makes my hair feel nice and i feel like it does help
  86. Amazing


    My friend gave me a bottle of this hair care product at the end of last year. I feel very good after using it. There are a lot of new hair growing out. The price is very affordable, I will purchase again.
  87. Easy to use


    Was skeptical before purchasing but it turned out that I could see some effects. I rub a few drops on the tips of my fingers on both hands and rub it towards the front section of scalp first, then a few more drops and rub at the back or my head. This I do about 15-30 minutes before going to bed and on the days I have washed my hair. I do notice my hair sits a little "fluffier" with more body in t...
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  88. Love the ordinary


    I use so many of the ordinary products. I really liked this, it is difficult to judge if it really works, however I do think it does.
  89. Still sceptical..


    I haven't noticed any difference from using this product and I am a little dubious of the claims they make about it. I believe they are being purposefully vague about claims and there isn't really anything in it that's proven to stimulate hair follicles. I will keep using til the bottlers out as I have had really good experience with The Ordinary in the past. On the plus side I haven't had any iss...
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  90. Strange scent


    I'm always a big fan of The ordinary, when this product released, I bought it immediately. It has a strange smell, but the texture is good, just like liquid. I'm still using it, hope it can make my hair thicker.
  91. not much of a difference


    did not notice much with this product. I have heard good things so might be worth a try although I did not notice much growth.
  92. Thicker hair!


    Love it, has definitely worked for me my hair is noticeably thicker. Will repurchase for sure
  93. Another great product from The Ordinary


    It may be a little soon to tell as I have only been using this for about a month. But I have high hopes for this product from the well acclaimed range, The Ordinary. My hair has grown back after 6 rounds of chemo in 2016 thinner than normal on top. It is very easy to apply each night before bed. I have had comments from my hair dresser and friends that there is improvement! So I will definitely pe...
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  94. No noticeable difference


    I didn't notice any difference after using it for two months. I apply it at night, and my hair needs to be washed (or worn up) the next day. I might buy again to see if it needs to be used for longer to see any noticeable change.
  95. No noticeable difference


    I've used the whole bottle of this serum and seen no noticeable results. I have thin, fine hair, and it it's seemed to do is make my roots look greasy with only a few drops. Think it has improved the condition of my hair. Doesn't have a strong smell either.
  96. Can't really tell...


    I have thick, straight hair but with some areas around my hairline where my hair is thinning/breakage from being tied up in tight pony/bun often. I was hoping this would fill out my hairline a bit better. It feels nice and cool on the scalp, not oily at all, but I find it gets absorbed really quickly into my hair and not really on the scalp. I haven't been as consistent with it as I should be, but...
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  97. So so


    My hair type is fine straight without volume or thickness. I was expecting this product will give me some volume or thickness, but I’m honestly disappointed with results. No results at all...
  98. shiny


    I don't think it really does much for me except add shine and make my hair feel smooth, but still, for the price i'm happy with that :)
  99. No difference


    No difference in hair growth, just adds shine to the hair.
  100. Holy Grail


    I'm obsessed with this product. I'm onto my third bottle and my hair is thicker and healthier than ever.
  101. Review & Earn
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