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Medik8 Hydr8 B5 Liquid Rehydration Serum 30ml 30ml

4.6 of 266 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, this face serum is a must-have for all skin types suffering from dehydration and dullness.

  • Cosmeceuticals

What customers say

SUPERIOR - 91% 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 266 reviews

91% recommend this product

  1. 187

  2. 61

  3. 15

  4. 4

  5. 2

Most Helpful Positive



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

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. perfect!


    verified purchaser
    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
  2. Its Okay!!


    verified purchaser
    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.
  3. good


    Great serum. Leaves my skin hydrated and smooth. Too pricey
  4. 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.
  5. 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.
  6. Lovely Serum


    verified purchaser
    Not sticky, easily absorbed, everything ot should be.
  7. Changed my skin


    verified purchaser
    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!
  8. Great Serum


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


    verified purchaser
    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!
  10. Hydrating


    Kept me hydrated all winter, no more dry patches. Easily absorbed, not sticky afterwards, can be used under makeup also.
  11. So nourishing!


    I love this hyluaronic acid. It is so lightweight yet so effective. My favourite one by far! My skin feel so luscious after each use.
  12. 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.
  13. Nice Liquid


    Nice product, doesn't leave any sticky/oily residue on the skin. Great feel after use, plump the skin.
  14. 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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  15. Super Hydrating


    Really great serum. Keeps my skin looking hydrated and doesn't leave any sticky or oily residue. Great feel.
  16. 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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  17. 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.
  18. 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.
  19. 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
  20. 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!
  21. 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.
  22. 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.
  23. Hydrating


    This is a really good serum. It hydrates nicely and gets absorbed easily
  24. 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
  25. Good


    Good serum, really helps my skin stay hydrated without becoming overly oily. Good value for the price.
  26. 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.
  27. 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!
  28. 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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  29. Lightweight hydration


    Beautiful serum that is lightweight and hydrates well. Gets absorbed quickly and layers well under products.
  30. 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!
  31. 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.
  32. Best HA I have tried


    I love this hyaluronic acid, even more so than the skinceuticals one! Great texture and feel on the skin.
  33. 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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  34. 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.
  35. 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
  36. 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.
  37. 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.
  38. 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.
  39. 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!
  40. 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!
  41. 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!
  42. 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
  43. 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.
  44. Light but hydrating


    I enjoy the light weight and fast absorbing texture of this serum.
  45. 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)
  46. 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!
  47. 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
  48. 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!
  49. 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!
  50. 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.
  51. 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.
  52. 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.
  53. 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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  54. 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
  56. 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.
  57. 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.
  58. 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.
  59. 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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  60. 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
  61. 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.
  62. 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.
  63. 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!
  64. 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.
  65. 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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  66. 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.
  67. Amazing for skin needling


    I have acne/combination skin which has just recently cleared up a bit more. I used my at home dermapen to needle my face (I have had it done in clinic before but now doing it at home because of isolation) and used this as the serum during and after needling. The pipette was also useful for hygiene reasons! It is so soothing and hydrating for my skin and does not break me out at all. This is my 3r...
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  68. Such an amazing serum


    I bought this serum after reading the reviews and it did not disappoint. A little goes a long way and it is so hydrating.
  69. Rehydration


    I have really dry sensitive skin! this has helped with my dry flaky areas! really hydrates the skin without causing redness!
  70. Beautiful serum, definitely worth it


    This is my first Medik8 product and HA serum after being highly recommended the Intense version by a friend. I decided to try out the non-intense version first. I absolutely love everything about this - texture, bottle, feel and how it makes my face look more hydrated. In particular, I like the texture and clear formula compared to the Skinceuticals HA serum. Excited to try the Intense next and se...
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  71. my go-to


    I love this for stressed and dehydrated skin, especially now that we're indoors more. I use it every morning as it instantly moisturises and creates a great base for other serums and creams.
  72. very hydrating and not sticky


    I love this serum, it is light, non sticky and very hydrating. It has not broken me out and I can use it when my skin feels sensitive for example it I get a little sunburnt. Would repurchase, bottle seemed to last a long time with twice daily use.
  73. Love


    I love all things Medik8 - this is an amazing hydrating serum that is suitable for sensitive, dry, oily - all types of skin! I put a tiny bit on in the mornings under my moisturiser and it keeps my skin hydrated and smooth throughout the day. You'd like this if you also like Alpha-H!
  74. Prefer the Intense version.


    I used this before the Intense version in the purple bottle came out, it's a good HA serum, a little sticky on the skin after application. I prefer the purple version though so won't be going back to this.
  75. Standard hyaluronic serum - hydrates well


    A reliable hyaluronic acid serum. I switched to Skinceuticals because I found this one more sticky and didn't really notice much 'plumping' effect (like I have with Skinceuticals) but definitely increases moisture in the skin and for a cheaper alternative this one is still quite good.
  76. Still not 100%


    This is the 2nd bottle I've bought. I done a review on it during the 1st bottle and was a bit "meh" on it. I thought I'd give it another go. It's very hydrating and the feel of it is a bit sticky when it first goes on but then sinks into your skin nicely. I always put a moisturiser on over it anyway. Will I buy a 3rd bottle? Not sure...
  77. Wow


    I suffer from quite dry skin that never, ever feels hydrated. This serum is a game changer. After 3 days my skin is feeling plump and hydrated to the touch. I love this serum so much and am annoyed it took me so long to purchase!
  78. A glass of water for your skin


    This product is like a glass of water for your skin.
    It's a no fuss hydration serum that won't cause any irritation at all.
    Can be used morning and night, and your skin will look so plump afterwards.
    Always apply a moisturiser afterwards though! (need to lock in that goodness).
  79. Great first step in routine


    A good first step in your routine. It’s light, hydrating, sinks in well and primes the skin for other layers such as C in morning or retinol in evening. Thin, wet texture
  80. Light and hydrating


    Love this serum - feels like water on the skin, absorbs quickly and is really hydrating! Initially purchased the ABC Kit to try Medik8 products - this is by far my favourite and I'm on to my third bottle. The only downside is the amount of product you get for the price - only 30ml in the bottle (and recommended to use day and night - I fly through this!) Wish it came in a larger size. Otherwise am...
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  81. The best


    Seriously the best it keeps the face so hydrated amazing 10/10
  82. Lovely but can’t justify the price


    This is a lovely serum. It applies beautifully, dries down and sits nicely under skincare and make up. But I found that I couldn’t justify the price. It’s only 30mls, and using it every day, only lasted me a bit over 2 months. I’ve since found another HA serum that does just as good a job at a more reasonable price.
  83. Light serum and luxurious!


    This serum is light-weight with a soft luxurious texture! If you are looking for a perfect light-weight hyaluronic acid this is perfect. Also great value at this price point.

    I personally prefer a heavier hyaluronic serum so I like the Medik8's Hydr8 B5 Intense. Nonetheless, this Hydr8 Rehydration Serum is still such a great product!
  84. Hydration


    I highly recommend this serum, I’m always restock it
  85. Not for sensitive skin


    I was given this as a sample and was excited as some of my friends rave about the Medik8 range. Unfortunately this did not work well on my skin. Firstly, after application it made my skin feel tight & dry, not nourished. There are many drums that I think can stand alone but this one definitely enquires moisteriser afterwards. Anyway, I persevered for three nights but at that point I then broke ou...
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  86. Love this serum


    This serum is so light weight, no offensive smell and a beautiful texture. I apply both day and night before moisturizer, and i find my skin feeling very plump and hydrated. Will definitely re-purchase when I run out.
  87. Love this!


    My favourite hyaluronic acid serum! Have repurchased this a few times now. I like how fast it absorbs and how there is no tacky feeling like with some hyaluronic products. Also sits well under makeup. I use this every morning and evening after washing my face - would recommend! Have tried cheaper products but don’t feel they work as well as this one.
  88. Juicy, and nourishing for my skin

    Alice Feez

    This is refreshing and plumps my skin up, so its nice and juicy before applying makeup. It feels a bit tacky after application and i often feel like i need moisturiser post-application. In the case of makeup application, this wokrs wonderful, as it holds onto my foundation, prolonging the wear as my skin is hydrated.
  89. Hydration powerhouse!


    I use this serum day and night, I am totally addicted to it! It hydrated like nothing else! I highly recommend this product as a must have in anyone’s routine.
  90. Great results


    Best serum for hydrating the skin and giving t a beautiful glow. Leaves it feeling very smooth also
  91. Must for summer


    This is a must for summer to balance the extra oil in the skin with hydration. You will see results immediately, i also mix it with my vitamin c serum
  92. very moisturizing


    I love this serum, its super hydrating and really helps my dry skin, especially during winter
  93. Sinks In Beautifully


    I received a sample of this but I already have the hydra8 b5 intense that I bought from Adore at beginning of this year however, I found this version to be much better at hydrating my skin. This one sinks in beautifully, is not sticky and feels so hydrating whereas the intense version is sticky and sits on top of my skin. Will purchase the full size of this one as soon as I use up the intense vers...
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  94. Amazing hydration!


    I have combination oily skin, and with a better skincare routine from my beautician, it is now normal-oily. I’m converting my makeup to Jane Iredale and Youngblood, as I found the foundation I was using (The Body Shop) looked amazing, but left dry patches on 2-3 prominent areas on my face. It took me a while to understand the difference between having oily skin and having hydrated skin. Once I tri...
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  95. Beauty in a bottle


    I love it how you see results INSTANTLY. After i wash my face, it start to pull after 5 seconds. Immediately put this on and pull no more!
  96. super hydrating!


    Love this so much! super hydrating and makes my skin look more glowy! prefect to use before applying makeup for that youthful glow!
  97. Hydrating smooth finish!


    This product is beautifully hydrating and the finish is beautiful and smooth and not at all sticky, can be worn under make up as your skin drinks this up!
  98. Review & Earn
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