Medik8 Hydr8 B5 Serum

Medik8 Authentic
✔︎ In Stock. We ship today if you order before 1 pm

Medik8 Hydr8 B5 Serum by Medik8

free shipping on all australian orders.

Restore vitality and enhance hydration with bestselling Hydr8 B5 Serum from the skincare experts at Medik8. 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 tiredness.

This moisturising serum has a weightless texture, allowing for easy and fast absorption. With regular use as part of a morning and evening skincare routine, Hydr8 B5 dramatically improves skin texture and enhances luminosity. The moisture boost helps diminish dehydration lines, dryness, and irritation.


Medik8 prides itself on results-driven skincare. The beauty brand crafts facial cleansers, sun protection, and everything in between to nourish skin with potent actives delivered gently. Hydr8 B5 Serum is a bestselling skin serum, known and loved for its ability to quench thirsty skin and keep your complexion healthy.


What are the key benefits of Medik8 Hydr8 B5 Serum?


  • Deeply hydrating serum containing Vitamin B5 and Hyaluronic Acid
  • Lightweight and easily absorbed gel formulation
  • Suitable for all skin types
  • Can be applied as both a day and night serum
  • Provides optimal skin hydration for a brighter and smoother complexion
  • Stimulates skin regeneration and healing



What are the key ingredients in Medik8 Hydr8 B5 Serum?

There are two main actives in Medik8 Hydr8 B5 Serum: Hyaluronic Acid and Pantothenic Acid, the latter of which is commonly known as Vitamin B5.

Hyaluronic Acid is known for its moisture-retaining abilities, as it can hold 1,000 times its own weight in water. When applied to the skin, this ingredient provides an instant hydration boost, which helps to rebalance moisture levels in dehydrated and dry skin. Hyaluronic Acid also helps to increase skin suppleness, improve skin luminosity, and reduce the appearance of dehydration-induced fine lines and wrinkles. The fast-absorbing and weightless texture of Hyaluronic Acid makes it perfect for all skin types.


Pantothenic Acid, or Vitamin B5, is a skin-softening ingredient used to help smooth skin and improve skin texture. The anti-inflammatory and anti-itching qualities of this vitamin help stimulate skin healing to reverse irritation or damage.


Which skin type does Medik8 Hydr8 B5 Serum suit best?

Medik8 Hydr8 B5 Serum is suitable for all skin types due to its oil-free formulation and fast-absorbing texture. This serum provides a much-needed moisture boost to dry and dehydrated complexions. The product also helps rebalance moisture levels in oily skin. The anti-inflammatory and anti-itching properties of Hydr8 B5 serum make it ideal for those with sensitive and irritated skin.


How should Medik8 Hydr8 B5 Serum be applied?

This hydrating serum can be used in both a morning and evening skincare routine.

  • After cleansing, apply 5 to 6 drops to your fingertips and blend into the face, neck, and decolletage.
  • Alternatively, you can apply the serum directly to the skin.
  • Be sure the pipette does not touch the skin.
  • In the morning, follow with a moisturiser and SPF. 
  • In the evening, follow with a night moisturiser. 
  • Hydr8 B5 can also be added to any moisturiser to boost hydration levels in one step.
Buy now pay later with Afterpay.


Aqua, Pantothenic Acid, Sodium Hyaluronate (Hyaluronic Acid), Phenoxyethanol, Ethylhexylglycerin, Citric Acid


In the morning and/or evening, after cleansing, apply 5-6 drops directly to the skin and blend evenly across the whole facial area, neck and decollete.

Alternatively, place a drop on your finger and massage into the skin, repeating until the skin is covered. Apply your hydrator as usual after every application, or use as a standalone hydration product for people with oily or problem skin.

If using Hydr8 B5 during the day, ensure that an SPF hydrator is applied after every application.

Shipping & Returns

FREE EXPRESS shipping on orders over $50


FREE standard shipping within Australia!

Same day Melbourne delivery to select post codes.


Click for Christmas Delivery Dates

Reviews (19)
Write a review
Meh - 08-05-2018 by

This product isn’t particularly good or particularly bad. I mean it sinks into the skin pretty fast, so that’s a bonus, but beyond that I personally can’t notice any difference

It’s a gel, which threw me off when I first used the pippette.

Wish it wasn't so expensive - 29-03-2018 by

I bought this on a whim. I was looking for a serum for my sensitive skin and came across this one.

I ABSOLUTELY LOVE THIS. Just add a tiny couple dots to my face and it makes my skin feel sooo smooth and soft the day after. ost importantly it doesn't irritate my skin one bit.

I wish I could repurchase this again, however there are other Hyaluronic acid serums that are more affordable and has similar results to this.

If you have the cash to splash, this should be a staple in your skincare routine!!

Gift with purchase - 19-03-2018 by

Received this a few months ago but only recently tried it. I generally don’t use serums and I found this to make my skin feel taut after application and really needed to use a moisturiser afterwards. Not sure it has made any difference to my skin.

Great results - 19-03-2018 by

I first tried this product as it is much more affordable than other serums. It does a marvelous job of keeping my skin hydrated. I usually always peel around the nose area. This stopped within a week of me using this serum. I apply it twice a day, morning and night. I highly recommend it for anyone looking for extra hydration.

A definite staple - 27-02-2018 by

This serum is just absolutely amazing. I suffered from really dry, flaky & sensitive skin on my chin for months. Struggled finding & using everything to tame it. This is the only thing that cured it. It’s very light upon application but really hydrates. I use it day and night. Under moisturiser. It’s absorbed quickly & not oily. 3 or 4 drops goes a very long way.

Amazing!!! - 14-02-2018 by

I love the Medik8 range and Hydr8 B5 is definitely something I cannot go without. It's super light and absorbs very quickly, and unlike a lot of other brands of serums, this one is not sticky!
Highly recommended to add to your daily skin routine!!!

Must have for dry skin - 08-02-2018 by

I have quite dry skin that need lots of moisture. This is the best product for restoring moisture, especially during winter when my skin gets ultra dry and flaky. My favourite beauty product by far.

Not worth the price tag - 18-01-2018 by

I felt I had to use a lot of the product and that it never really sank in or penetrated my skin, my skin would feel hydrated but not for long.

My skin looks and feels soft - 17-01-2018 by

I’m really enjoying this product and the effects on my skin. When I first applied It i didn’t think the product had it in it to make much difference as the the texture was is so light. But now after a couple of weeks my skin feels more hydrated and is glowing.

My skin looks and feels soft - 17-01-2018 by

I’m really enjoying this product and the effects on my skin. When I first applied It i didn’t think the product had it in it to make much difference as the the texture was is so light. But now after a couple of weeks my skin feels more hydrated and is glowing.

Hydrating - 01-04-2016 by

The texture feels a little like snail goo but I can see my lines disappearing. I've always looked for products to keep under my eyes hydrated and have not been so lucky until I've found this product. It's costly, and I think I use more than recommended but it has made me feel less self concious about the lines under my eyes, especially since I'm 31 and only getting older.

Skin maintenance product - 21-03-2015 by

I am nearly finished with my third bottle and although the benefits of this product aren't visually dramatic, they slowly creep up on you in the form of skin which is hydrated from the inside. I use it every morning as the first product I apply on my skin after cleansing. When my dermatologist said my skin was hydrated, I knew it was because of this product. Like I said, it's not going to give you visual results like retin a or similar, but it will keep your skin plump and that is a good thing when you are in your 40s!

Will continue repurchasing! - 20-07-2014 by

Everyone else loves Medik8 Hydr8 B5 Serum and you know what, me too.

It's the most lightweight Vitamin B serum that I've ever tried, it's not sticky or greasy and it basically sinks right into the skin without smelling bad, or interfering with any other serum you might feel like using underneath (I sometimes use this over the top of AHA products - amazing!).

I used to get really bad dry skin with flaky patches and everything but not since I've been using this.

Love the B5 Serum - 29-04-2014 by

I ordered the B5 serum on a whim after lamenting about how dry I get in winter. I put it on at night, and my skin immediately felt the difference - no longer dry and tight.

It's lightweight, doesn't interfere with my acne treatments and feels really nice on the skin. The bottle is a substantial size considering you only use a few drops at a time.

Love it!

I still love it!! - 26-11-2013 by

I'm on to my 4th bottle now and love it. I have stopped using it day and night due to the price and trying to make it last a little longer. But I don't get the dry flaky skin l used to. It's wonderful! And still works just using it once a day. It soaks in so well and you only need 3-4 drops. A truly lovely product to use.

Couldn't live without it now!! - 20-06-2013 by

I LOVE THIS STUFF!!! Although this serum seems expensive, it does go a long way and feels amazing on your skin. I only need 4 small drops and that covers my whole face & neck. I was having a lot of problems with dry skin after using a full range of ASAP products. Apparently the AHA's in the ASAP products were causing my skin to renew itself too often causing really dry & flaky skin. It was horrible!! This serum fixed my skin completely & feels amazing on!! It's also great in winter when the weather gets a little colder too and your skin dries out.

Good for dehydrate skin - 18-06-2013 by

Love this product !, I have oily but dehydrate skin but this product keep my skin hydrate and supple ...very very good. Cannot live without it.

natural balance back. - 25-09-2012 by

this product has been a god send! my skin, has previously been so incredibily dry, but now using this product I have got my natural balance back! thank you so much for recommending it. i am very grateful.

- 14-07-2010 by

I love this product. It's great as a makeup primer too. It smooths the skin and is very lightweight and easily absorbed. It didn't cause any breakouts on my allergic, reactive face. My skin feels less "tight" and I think this has helped with my redness issues too.

Q & A
Ask a question
There are no questions yet for Medik8 Hydr8 B5 Serum
Enjoy FREE delivery for Medik8 Hydr8 B5 Serum with same-day dispatch! Read reviews, buy now & pay later with Afterpay.