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Medik8 Hydr8 B5 Liquid Rehydration Serum 30ml 30ml

4.6 of 282 reviews


4 instalments of $19.75

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4 instalments of $19.75

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Containing a nourishing blend of moisture-boosting Hyaluronic Acid and skin-softening Vitamin B5, Medik8 Hydr8 B5 Liquid Rehydration Serum is a must-have for all skin types suffering from dehydration and dullness.

  • Cosmeceuticals

What customers say

SUPERIOR - 92% recommend

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Medik8 Hydr8 B5 Liquid Rehydration Serum 30ml

Medik8 Hydr8 B5 Liquid Rehydration Serum 30ml

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Medik8 Hydr8 B5 Liquid Rehydration Serum 30ml Reviews

4.6 of 282 reviews

92% recommend this product

  1. 213

  2. 69

  3. 15

  4. 4

  5. 2

Most Helpful Positive

Great hydrating serum!

Chelsea Cross

I received this as a sample from adore beauty and fell in love! I use this following the application of retinol and my skin looks and feels hydrated and calm. I also add drops to my moisturiser in days I feel more dry than usual and can definitely feel and see the difference. Although it is a bit pricey I believe it is worth the money.

Most Helpful Criticism

Nothing special


I love so many of the medik8 products but this serum is average in my opinion. It doesn't irritate and I really like that it has only a few ingredients. It feels very nice and light going on and absorbs really well. However, I feel that I have tried other similar serums that worked much better in regards to hydration. I noticed after switching from another similar serum to this that my skin was not looking at hydrated as usual after using for a few days. I don't think I will repurchase.
  1. Great hydrating serum!

    Chelsea Cross

    I received this as a sample from adore beauty and fell in love! I use this following the application of retinol and my skin looks and feels hydrated and calm. I also add drops to my moisturiser in days I feel more dry than usual and can definitely feel and see the difference. Although it is a bit pricey I believe it is worth the money.
  2. Smooth and hydrating


    Love the feeling of this on my skin and absorbs super quickly!
  3. Favourite hyaluronic serum!

    Rhiannon Overton

    I have been using the ordinarys hyaluronic serum for almost a year and wanted to try a new brand. I had heard great things about medik8 so I gave them a try. Never going back to the ordinary, this serum is fantastic. It absorbs into my skin so nicely. Love, love , love!
  4. Quenching


    I have used this in the past and was very happy with it. Couldn't afford to repurchase so I tried a different brand. Received a sample of it again during a recent order and it have fallen in love with it again. My skin is so hydrated, plumper and glowy. My selfies looks like it has been filtered. Will stick to it forever now.
  5. Lovely product


    I received this product as a sample and I really enjoyed it. Although it has not been enough to replace my favourite vit B serum. Thank you adore beauty for giving me the opportunity to try so many different products as samples.
  6. Super hydrating


    My skin lovesssss this stuff. After applying, I can visibly see the hydration it gave my skin. I’m obsessed with it, expensive but worth it.
  7. Helpful & Gentle

    AJK 37

    I bought this to help my skin recover between vitamin A treatments. It's really lovely, glides on, doesn't irritate, and hydrates without clogging my skin at all.
  8. Hydration station


    LOVE THIS SERUM. Received a sample of it and very quickly purchased the full size. It isn't cheap but I find it quickly hydrates and plumps my skin. My skin has been a bit more sensitive recently and this has really seemed to reduce redness and provide a glow. Love using it in the AM under SPF and at night under VIT A. Just a gorgeous all rounder!
  9. Hydrating and plumping


    I just started using this serum and just fell in love with it. It’s so hydrating with a slight plumping effect but that is to be expected of hyaluronic acid serums so what I think makes this serum better than others is that it doesn’t leave a sticky feeling afterwards. It sinks right in and the addition of panthenol doesn’t hurt either.
  10. keep coming back


    i really like this serum and sits so nicely under makeup without pilling. my irritation has started to subside after 3 days of am and pm use and my skin is thanking me. i always opt for this serum when its a beauty bonus and have purchased the big size and its the one serum i don't go without, love it.
  11. Love


    A great HA serum that has minimal ingredients so I know it won’t irritate my sensitive skin, and doesn’t feel sticky!
  12. Love this product!


    I'm a big fan of Medik8, this is definitely the best B5 serum I've used. It's not a greasy as SkinCentical B5 and does not pill with moisturiser or sunscreen. And the price point is so affordable as well. Skin feels so hydrated and immediately calms after use. Definitely a must-have.
  13. Best best best


    If you have dry sensitive irritated skin, buy this now. I have never looked back since, and my skin is glowing and healthy! No more dry patches!!!
  14. It does the job


    It definitely does its job - hydration. Fast absorbing, leave non grease feeling. Good base before applying other skin care products
  15. Six stars


    I wish I could rate this with 6 stars. I had dermatitis this summer and anything I put on my skin made it worse. THIS however cured it (along with pure vitamin e cream and vaseline). Because this product contains minimal ingredients, it didnt flare up my dermatitis AND kept the area hydrated.
  16. Good product


    I’m new to the medik8 brand, and I’m converted. I got a cleanser and this serum to start/try and am happy. One week into using this serum and loving the results
  17. Best for dry skin


    It's soooo good for dry skin! If you have dry skin, please try this one, best hydration in summer
  18. big drink for the skin


    This B5 is so great for the price. My skin soaks this up like a big drink of water, and continued use has slowed down my oil flow; I no longer look like an oil slick at the end of the day. Will definitely repurchase.
  19. Love this product!


    So hydrating! I love this product. My skin went through a very dehydrated period, and this product worked. Not oily or heavy, just beautifully hydrating. Will buy again.
  20. Great hydration - second only to Medik8 Hydro B5 Intense


    Love this serum. It was recommended to me as an alternative to it's superior the B5 intense. Didn't quite pack the punch that it's big sister does, but it gave it a mighty good swing and I didn't notice enough of a difference to not save myself $20 next time. Would absolutely repurchase. Layers beautifully.
  21. A reliable hydrating serum by a trusted brand


    I received a 10ml sample, amongst other Medik8 samples....this lasted ages! I used Hydra B5 daily after applying vitamin c and before my moisturiser. This serum is quickly absorbed by the skin without a tacky feeling. I am a fan of all Medik8 products in general and this serum is no different.
  22. A serum staple


    Such a great hydrating serum to have in your skincare arsenal. Feels lush on the skin and soaks in beautifully.
  23. basic serum in summer


    must use b5 everyday as a basic, lovely price !
  24. Very hydrate


    Really like this texture, feel my skin smoother
  25. Lovely basic serum that does the job well


    This is a lovely serum I like to use when my skin is feeling a bit on the dry side. I've never experienced any irritation, and I always wake up the next morning with my skin feeling hydrated and more glowy :)
    While it is expensive, it does the job well
  26. Never wrong with this serum!


    That is on of my ever favorite serum! Never going wrong with it. The price is great and the job is great!
  27. Enjoying this product


    Got this as a sample and purchased a full size bottle right away. It's lovely on the skin, skin feels hydrated and feel it improves the texture of my skin. Doesn't clog my pores or cause any milia issues. I use this AM and PM. Would like it to be a little bit cheaper as I feel I am already going through the bottle, and only use 2-3 drops each time which covers my entire face (as opposed to the r...
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  28. Hydrate


    Feel my skin was very hydrated. Definitely Will buy again


    i had sunburn couple days ago, however, this product save me.
    i used 3-4 drops each time, it calms and hydrate my skin without irritation.
    i would definitely recommend ppl with normal-dry sensitive skin type get this one!!!! great product, loverly!
  30. Hydration for summer


    In summer when the a/c is always on, my skin gets so dehydrated and oily... so this is perfect to give the quench it needs without making my face greasy. Just need to lock the hydration in with a light serum after.
  31. 100% hydration


    Just a 100% hydration product, and just does it so perfectly. First thing i apply after washing my face to prevent that skin pulling sensation from drying out.
  32. Love this!


    Skin was feeling dehydrated and this has been just the thing! I use AM and PM, and notice the difference.
  33. Amazing Hydration


    Perfect for hydrating. Such a light serum and your skin absorbs the product instantly.
  34. good hydration


    i have been using it for everyday for the past 3-4 days and i have noticed that my skin is not as dehydrated as it was before so i think this is working. however it is just an ordinary hydration serum nothing exceptional
  35. love it


    I got this product as a sample and I have tried it out a few times. I love it! It's so light weight and spreads into the skin really nicely. My skin felt so hydrated, even before I put on a moisturiser which is very rare for my skin. I will definitely be buying the full size of this product
  36. Keeps skin hydrated


    Love this moisturiser! Been using it for 2 months now and my skin loves it! My skin feels hydrated and not at all greasy or sticky. Texture is light and fast absorbing.
  37. perfect!


    a great hydrating serum at a reasonable price for a cosmeceutical product. I use it morning and night after my other serums - goes with everything else, and is super hydrating
  38. Its Okay!!


    I was using the Medik8 Hydr8 B5 Intense prior and switched this as the other one was out of stock. I did not see a noticeable difference with this one and would rather prefer to use the Hydra B5 intense over this.
  39. good


    Great serum. Leaves my skin hydrated and smooth. Too pricey
  40. Nice to use


    This HA is a delight to use. I actually skip toning when I use this for better penetration. Absorbs quickly & doesn’t feel tacky on the skin. Really balancing & lovely.
  41. hydration


    This product is perfect for hydration! It's made a huge difference to my skin routine. However it is expensive, I found using twice a day it does run out quicker. But I am on my third bottle so worth the buy for me.
  42. Lovely Serum


    Not sticky, easily absorbed, everything ot should be.
  43. Changed my skin


    This has made such a difference to my skin! I‘m looking for to trying the intense one next. My skin is so hydrated and smooth!
  44. Great Serum


    A major difference with the texture of the skin, a wonderful hydrator and a very happy purchase !
  45. Can't live without this serum!


    Love this serum! I've tried other serums before for hydration which leave an oily residue, but just 6 drops of this in the morning and at night soaks into my skin leaving it hydrated. Combined with my other Medik8 products, this serum is definitely my can't-live-without product!
  46. Rehydration for dry face


    I've been using various Medik8 products for awhile. I've incorporated Medik8 Hydr8 B5 Liquid Rehydration Serum to my daily routine. It has rehydrated my dry sensitive face. Its quick and absorbs quickly. Only use 6 drops daily on your face.
    Overall a good product to use in conjuction with your daily Medik8 skincare routine.
  47. Nice Liquid


    Nice product, doesn't leave any sticky/oily residue on the skin. Great feel after use, plump the skin.
  48. Nothing special


    I love so many of the medik8 products but this serum is average in my opinion. It doesn't irritate and I really like that it has only a few ingredients. It feels very nice and light going on and absorbs really well. However, I feel that I have tried other similar serums that worked much better in regards to hydration. I noticed after switching from another similar serum to this that my skin was no...
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  49. Super Hydrating


    Really great serum. Keeps my skin looking hydrated and doesn't leave any sticky or oily residue. Great feel.
  50. Wasn't too bad


    Previously, I had only tried using The Ordinary's HA serum but hated how tacky it made my skin. This absorbs much more nicely, and there are no dramas with applying moisturiser or sunscreen over it re pilling. To be honest, while I don't have any complaints with it I am not sure there were any notable differences when using this in the every day in the AM - I'm sure it was doing its thing, just in...
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  51. It's ok!


    Not sure about this one!
    Every time I have used it my skin feels more dry than it did before!
    I will keep trying it, but probably wouldn't purchase again.
  52. Hydrating and Glowy


    Probably one of the best HAs I have used. Gave me hydration and a nice glow. Feels so smooth and nice on the skin. Would definitely repurchase this.
  53. So gooood


    I love the hydrate b5 it makes my skin look so plump, fresh and hydrated. i have tried a lot of hyaluronic acids and none have been as beneficial as medik8s
  54. Love it!


    I love this serum - just about finished my first bottle and will be repurchasing. I have always used Alpha H HA serum (which is still great btw!) but tried this just for a change and really like it. I think it soaks in quicker. Super hydrating and not sticky at all. HA is a total staple in my routine and I’m glad I found this!
  55. HYDRATING X 1000000


    I've used it for a week and honestly cannot believe how quickly this absorbs in to my skin. Its instant. my skin is so much more plump and bouncy.
  56. Really good


    This stuff is so nice to have on your face and instantly makes you feel refreshed. The consistency is so light and easily absorbs into your skin. I have oily skin and some of the other HA's I've used have made my skin really oily but this did not do that. It also doesn't leave your skin feeling dry or tacky.
  57. Hydrating


    This is a really good serum. It hydrates nicely and gets absorbed easily
  58. I will never use another hyaluronic acid


    This is the most hydrating serum ever. Yet somehow it also soaks in instantly so there’s absolutely no grease left behind. I use this almost every morning. Whenever I feel the slightest bit of dryness coming, after using this it’s all gone and not just for a few hours - it’s properly gone. This is fabulous
  59. Good


    Good serum, really helps my skin stay hydrated without becoming overly oily. Good value for the price.
  60. Hydrating


    This product is very hydrating and it absorbs really well into my skin. I no longer have flakey skin on my nose and around my mouth in winter.
  61. Magic


    You see results just after one use. Literally the first thing you should apply after washing face and toning. That pulling sensation of the face from dehydrated skin is no longer!
  62. Great product


    I didn't know what to expect with this product. I received it initially as a sample gift. I had depleted my usual serum and decided what did I have to lose.
    From the first application, my skin felt softer. Within three days, Winter redness had disappeared and my skin appeared more refined.
    Lines around the outer eyes also appeared almost non existent.
    I think this will be repla...
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  63. Lightweight hydration


    Beautiful serum that is lightweight and hydrates well. Gets absorbed quickly and layers well under products.
  64. Best hydrating serum ever


    It works as it says: Hydrates. I hate it when it comes to too much ingredients in just a product as it makes me feel like I put tons of chemicals on my skin. And that’s why I chose this product. Love it!
  65. Average


    Medik8 have some lovely products, this however is not one of them. Consistency is runny and it dries sticky, My skin still feels tight after using. I wouldn’t recommend.. you can get better serums for around the same price.
  66. Best HA I have tried


    I love this hyaluronic acid, even more so than the skinceuticals one! Great texture and feel on the skin.
  67. Gentle hydrating serum


    I have sensitive skin and I have rosacea. I started using this serum to help with dryness. This didn't irritate my skin at all and did not flare up my rosacea. It does not have a noticeable fragrance.

    I have been using it morning and night for 6 weeks and my skin is so much better, it definitely works. I used a generous amount each time and the bottle is nearly empty. I was hoping it...
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  68. Lightweight hydration


    This product is amazing at boosting hydration. It would be great for oily skin as it is super lightweight. I personally have dry skin and layer a lipid vitamin C and moisturizer. Make sure you apply on damp skin for best results.
  69. lightweight, absorb fast


    Love this product. Doesn't break me out - in fact haven't had a major breakout since using it. It sinks in almost immediately and doesn’t pill when applying products after it
  70. Very hydrating and works well in plumping my fine lines on forehead


    Very impressed with how well this B5 Serum plumps my skin and absorbs so well too! I highly recommend this to anyone looking to hydrate their complexion.
  71. Super hydrating and smooth application


    This is a super nice serum, really hydrating. Applies smoothly to the skin and spreads easily. Dries quickly so it’s good in a routine and doesn’t pull when you apply products over it. Really enjoying using this serum.
  72. Super hydrating


    I use this serum when my face feels super tight and dehydrated after showering and my face would feel super hydrated after using it. Strongly recommend it and it doesn't feel greasy or anything for oily skin.
  73. Great, but not amazing!


    Really nice HA serum, I love how plump it makes my skin.

    I received this as a gift, and am unsure if I would spend the $$ myself. It's great, but for the price I would probably stick to the Ordinary version for repurchasing!
  74. Heaven in a bottle


    I was recommended this by a friend and I fell in love from the very first application! I have oily skin but this hydration leave my skin looking glowy without the unwanted shine:
    Sinks into your skin perfectly, leaving it feeling fresh and plump!
  75. Incredible hydration!


    I've never tried a hydrating serum but WOW, I will never go without now. I've been using this every morning and night and my skin feels plump hydrated and just healthy all day long. Cannot recommend this product enough!
  76. If only i could rate 6 stars


    I do not apply any other product on my face without applying this one first. It feels like sucking in all that moisture into my skin leaving no pulling skin on the exterior. Mix it with my vitamin C / BHAs and its the best thing ever
  77. Heaven in a bottle


    I wish I had found this miracle serum sooner!
    So gentle and hydrating on the skin, sinks in like a dream!
    Pairs well with all skincare and such a staple in my routine.
  78. Light but hydrating


    I enjoy the light weight and fast absorbing texture of this serum.
  79. Best of Medik8s


    I love literally ALL of Medik8 products, but this product was what made it a clear winner. Results in an instant, no irritation whatsoever, can be mixed with any other product (AHA, BHA, Retinol, Vita C)
  80. Hydrating!


    Love this! Makes my skin so hydrating and a perfect base for make up. Haven't used a B5 serum before so I don't have much to compare it to but will repurchase again!
  81. It works and good price point


    This really is a lovely hydrator and for a cosmeceuticals brand it’s a good price too! Easy to layer
  82. Ok


    I had a sample of this which was great as i was just starting to introduce myslef to a B serum.
    No complaints. Love the dripper bottle. Not sure if id purchase again unless on discount. I like Asap B as it has more forms of VitB. But this one has Hyaluronic acid so if you dont have this ingredient in any of your other skincare products its worth it!
  83. Love it, but expensive


    Love this serum! I have recently switched to The Ordinary's equivalent, as I'm currently unable to justify the price of this, however I absolutely adore it!
  84. Hydrating


    Nice hydrating serum, goes on well. I have sensitive dry skin, this product didnt irritate at all, did hydrate, although coming into winter I felt like I needed perhaps something more intense. Would be interested in trialing the intense version. Bit pricey, wouldnt repurchase due to price.
  85. Light and refreshing


    This serum has a refreshing and cool feel to it. A little goes quite a long way and absorbs nicely into the skin. It doesn’t have a scent.
  86. so-so


    Not the best serum I've used and definitely one of the more pricey ones. Although the packaging is very pretty and sleek.
  87. The difference between this and The Ordinary HA + B5 ($12.90)


    I bought this product and the Ordinary Hyaluronic Acid 2% + B5 to compare the two. For two weeks, every morning and night, I used three drops of Medik8 on the left side of my face, and three drops of The Ordinary on the right side of my face. I noticed no difference. I love them both. I cannot believe I have only just started using HAs in my skincare routine. The Ordinary is slightly runnier and a...
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  88. I’m buying it again


    I love this serum! It absorbs very quickly and makes my skin softer instantly. For my combination skin, I pair it with Murad water gel and a light weight lotion. You may need a heavier cream on top as this serum is very light weight and may not be enough if you have dry skin.


    I honestly don't think i can use another hydration serum other than this now. Can't go back . It is so soft and sinks in smoothly. Remember to use on a damp face with either water or facial mist as the hyaluronic acid will attach to the molecules f the water and sink it into your skin. So beautiful
  90. Repurchase on repeat!


    I have tried a bunch of hyaluronic acids and this is one of the best. Goes on beautifully and absorbs quickly for a plump, hydrated face! I would say it's one of the better quality products at this price point and it's comparable to products double the the price. Will definitely be repurchasing.
  91. Love This Product


    I was worried being an oily skin type that this product would be too hydrating for me.. it is not at all. Absorbs straight into the skin and doesn't leave any residue. I put my SPF and moisturiser over the top and feel super hydrated but not too oily all day. Will 100% repurchase or even try the intense one next time.
  92. Nice serum


    I received a sample of this product and it easily fit into my night time routine as a last step hydrating serum. It added hydration and moisture to my skin and had a nice serum texture. My skin felt smooth and refreshed in the morning after use. It is a bit on the pricier-side though.
  93. Fantastic hydration


    I have used a range of B serums at a range of price points. I have dry to sensitive skin and am starting to experience fine lines. My skin loved this serum - it performs exactly as it says. I have used B serums for three times the price and this performs almost as well. It's really hydrating and plumping. I use a thick layer at night and wake up with skin refreshed, looking brighter and plumper an...
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  94. A little bit meh..


    So to be quite honest, I just don’t get this product. It’s not offensive but seems useless. It has no scent which I don’t mind, it goes on like a slippery gel that drys eventually, but I just don’t think it doesn’t anything. My skin didn’t react poorly. But it never made it feel or appear different. I would defiantly not repurchase as water is cheaper and just as effective
  95. effective for aged skin


    i have a relatively aged skin and this product is so good at keeping my skin hydrated and soft. i feel my skin to have become brighter too after using this.
  96. A beautiful HA serum


    Love this serum for evening time to deliver extra hydration and soothe my skin before going in with any actives! I think I will try the intense version next time as I would love to see what extra benefits it can give me.
  97. love love love it!


    This is my first medik8 product but 2nd HA product and it is fabulous. Yes, expensive but my skin has reaped the benefits of this product by using it daily after cleansing and before moisturiser!
  98. Impressive hydration


    My skin is quite dry and also dehydrated at the moment. This serum is super hydrating, really smooth to put on and doesn't pill under other products.
  99. Drink of water for skin


    This was my first medik8 product - but not my first B5 product ever but it's absolutely my favourite. I feel like with most B5 it's hard to notice a difference, but when i put it on it feels like a big giant drink of water for my skin.

    My skin is combernation and very reactive, and get's quite sensitive. And whenever the air is dry, or i've put my skin through a lot, or it's red and r...
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  100. Sinks straight in


    This is my first every hyaluronic serum and I love it - sinks straight into the skin and leaves it feeling plump and full. The only drawback is that I went through the whole bottle in only a month, so makes it quite an expensive step in my routine.
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