The Truth About: Hyaluronic Acid (And Why You Shouldn’t Believe Everything You’re Told!)

Often the beauty world is awash with buzz words and ingredients that appear to be the holy grail of skincare. Hyaluronic Acid is definitely the ingredient that everyone seems to be using right now, featuring in moisturisers, serums and boosting essences in order to encourage plumpness and fight the signs of ageing. Hyaluronic Acid actually occurs naturally throughout the human body; it binds to water giving it a stiff viscous jelly-like quality that helps to lubricate parts of the body that include joints and muscles. However, it’s become one of the most heavily researched substances in medicine today as its consistency and tissue-friendliness means it’s also a beneficial ingredient in skin-care products. Although Hyaluronic Acid can be found naturally in most every cell in the body, it is found in the greatest concentrations (about 50% of the body’s total quantity) in the skin tissue.

Young skin is smooth and elastic as it contains large amounts of Hyaluronic Acid that helps keep the skin stay healthy. It provides continuous moisture by binding up to 1000 times its weight in water, but with age the ability of the skin to produce this vital substance decreases. That’s why it’s been deemed to be the ‘wonder ingredient’ of anti-ageing skincare, as products can essentially inject more into the skin to help it perform in the way it once did. Hyaluronic Acid acts as a ‘space filler’ by binding
to water, therefore keeping the skin wrinkle-free and plump; on its own it’s not a moisturiser as such, but it’s an essential tool in the body being able to look after itself effectively.

However, the majority of brands use Hyaluronic Acid in a ‘standard’ form that’s actually too large of a molecule to actually penetrate the skin; instead just sits on the surface drawing moisture out of the skin, rather than encouraging it to form in the deeper layers. This means you can just wash away the moisture when you use a cleanser, leaving skin feeling tight and lacking hydration. This can become a viscous circle, as you feel like you need to apply more of your daily skincare regime to get the same results – but all you’re doing is pulling moisture away from the deeper layers and up to surface level, which then is washed away and the whole process starts again.

The key to true skin comfort is in the molecular weight of the Hyaluronic Acid used. The molecules need to be broken down so they can penetrate deeper into the skin, attracting moisture where it’s needed most for effective long-term results. However, it’s incredibly difficult to find out what kind of Hyaluronic Acid a brand is using (and therefore if it’s going to be effective for you) without extensive research. There are some that are using the optium size of particle, including Hylamide. From the brains behind some of the most effective and revolutionary innovations of the last decade, Deciem, Hylamide’s new Booster Low-Molecular HA Serum changes everything. With five varying forms of Hyaluronic Acid that can actually penetrate the skin at multiple depths, skin is left hydrated and visibly plump, both in the immediate and long-term.

The product can be used after cleansing and before your usual moisturiser, helping to deliver moisture to the deepest layers of skin for maximum effect. It ‘boosts’ and enhances the performance of your usual products by essentially acting as a carrier pigeon, picking up the little balls of moisture and flying right down into the depths of your skin before leaving them there to get to work. On its own it won’t be very helpful, but as an additional step in our skincare regimes it can really make a difference. There are loads of these kind of ‘booster’ products launching, including essences and serums that enhance the performance of other products, so it’s well worth investing in one if you want to maximise the impact of your skincare regime.

The Hylamide Booster Low-Molecular HA Serum is available now from Boots, priced £18.00. You can click and collect in your local store too.  

Features PR samples unless otherwise stated. To read my full disclaimer, click here.  




  1. Sophie Powell
    August 24, 2015 / 3:10 pm

    Really great post! Hyaluronic acid is such a big skincare ingredient nowadays that every time I write a new product post I feel like have to explain all of this – companies should definitely start labelling their products with the molecular weight to make life easier for us!Sophie xBeauty giveaway:

  2. Delia
    August 24, 2015 / 3:31 pm

    Is this something you researched into yourself and have you actually used this product? Or are you repeating what the brand has told you? I'm not attacking – I just want to get the correct product and if it's 'brand' talk I become dubious.

    • Hayley Carr
      August 24, 2015 / 4:09 pm

      I never ever just repeat 'brand talk' – this is not what LBQ is about. It's well known in the industry that HA needs to be of a certain size to work effectively. There are more products coming out in the next couple of months that tap into this idea; every post written is thoroughly researched by myself.

  3. Clare G
    August 24, 2015 / 5:18 pm

    I've just ordered the original hylamide serum. Do you know if this contains a high molecular weight version of HA?

  4. Philippa
    August 24, 2015 / 5:42 pm

    Such a useful and informative read! Thank you!Philippa – ByPhilippa

  5. karan kaur
    August 24, 2015 / 6:45 pm

    This is a really interesting post. Definitely be on the lookout for this in the future xx Karan|| studentbeautyhack

  6. Saloca
    August 24, 2015 / 7:55 pm

    Great read, I think the more in-depth information about our beauty products we have the more informed choices we can make! We slather all of these lotions and potions on our skin but if we don't understand what's in them, how can we choose what's right for our skin? Great post! Sarah :)Saloca in Wonderland

  7. Miel and Mint
    August 24, 2015 / 8:09 pm

    Wow, thanks for such a detailed review. I have heard people rave about Hyaluronic Acid. It was amazing to learn more. I could read a good review all day every day.xox Nadia

  8. Kara
    August 24, 2015 / 8:24 pm

    Great explanation of hyaluronic acid,easy to understand rather than being bombarded with marketing ploys!I bought this product yesterday so glad to read a good review of it!

  9. Tegan Seymour
    August 25, 2015 / 2:11 am

    I'd never even heard of this before, I would be keen to give it a go. Tegan xx – Permanent Procrastination

  10. Fubsy
    August 25, 2015 / 10:12 am

    Thank you – I did wonder why the HA didn't just pull water from the skin – now I know it can, I'll be looking at products more carefully.

  11. Helen Miller
    August 25, 2015 / 1:45 pm

    Building on the title "Why you shouldn't believe everything you're told", I think that it would be good to get an independent scientific perspective on the claimed superior efficacy low molecular HA, just to make sure that it isn't a marketing myth created by ingredient manufacturers – examine their "proof" and interpretation of their test results.

    • Hayley Carr
      August 26, 2015 / 8:29 am

      This isn't a made up story for marketing purposes. I don't just chuck any old rubbish on the site and hope it sticks. I thoroughly research every post and have a background in product development. That should be enough. Regardless, this is scientfic fact that's easily found via a quick google.

    • Nat - Tea, Cake, Make
      September 2, 2015 / 10:17 am

      This should help: Quick overview – fibrocites are cells which can prohibit collagen production – High weight molecule HA increases fibrocites, Low weight molecule HA was found to slightly inhibit this.

  12. Áine McGovern
    September 2, 2015 / 11:22 am

    Wooo, I could high five you! I've never got on with HA, it has always dried out my skin, I thought trying a short chain version would work better for me. Sadly not. I had people telling me I'd made it up & I wasn't using it right, all because I had the opposite results to most of the market. I must check out the low moecular HA to see if I've better luck! Thanks for this! Áine Beauty, Style & Lifestyle

  13. Lisa H
    September 2, 2015 / 8:13 pm

    Hi Hayley thanks for an informative post. What can you say about the Indeed Labs Hylaron range & the molecule size? I've always rated their serum but wonder whether to switch to this one. Thanks

  14. Anonymous
    July 16, 2016 / 9:53 pm

    As a chemist and molecular biologist I can confirm that your body cannot absorb hyaluronic acid efficiently and applying it to the outer skin barrier (epidermis) will do absolutely nothing but waste your money. Silly girls.

    • Hayley Carr
      July 17, 2016 / 5:15 pm

      1. If what you say is true, then I'm pretty sure none of the beauty companies would be legally able to make their claims and therefore sell product. If you have a point you would like to make, please expand and provide evidence. 2. Patronising comments such as 'silly girls' are offensive and unnecessary. I'm a 33 year year old woman with over ten years experience in the beauty industry, so please don't assume I'm a 19 year old that just likes playing with lipgloss.

  15. Anonymous
    September 3, 2016 / 10:33 pm

    There is masses of scientific evidence showing low molecular weight hyralonic acid (which CAN be asbsorbed into the skin) causes unwanted trauma and scarring to the skin. I would avoid using these myself. Have you any thoughts or done any reading? Some info here written by 2 scientists

    • Hayley Carr
      September 5, 2016 / 3:54 pm

      I'll give this a read, thank you!

    • Anonymous
      November 23, 2016 / 10:21 pm

      So what are your thoughts after reading? I've been wondering about this too.

  16. Unknown
    November 6, 2017 / 7:13 pm

    Wouldn't it also draw moisture from the air, leaving a layer of moist on the outer surface of the skin?

    • Hayley Hall
      November 7, 2017 / 8:16 am

      Yes it does, but the molecules are so fine and so deep that there's no film; it's undetectable.

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