This Works Morning Expert Hyaluronic Acid – In-depth Review and Ingredient Analysis

The This Works In Transit Camera Mask, Moisturiser & Primer is my ride-or-die primer, not only does it create a good makeup base but it is also nourishing for the skin. So when I saw the This Works Morning Expert Hyaluronic Serum I was very intrigued. Hyaluronic acid is one of the skincare must have ingredients, find out why here, plus it also contains vitamin C, another must have ingredient, and so it has the potential to be a great serum companion to the primer.

But does it work under makeup and is it worth combining with the legendary This Works In Transit Camera Mask, Moisturiser & Primer? Let’s find out.


This Works Morning Expert Hyaluronic Acid_20190701105912412



The This Works Morning Expert Hyaluronic Serum comes in cardboard outer packaging. It doesn’t look particularly pretty and it has a lot of writing on it but it is within the This Works branding.

The serum itself comes in a tube with a pump. The design is again not especially beautiful but within the brand’s identity.



One 30mL tube retails for £37. It is much more expensive than other hyaluronic acid serums, like for example The Ordinary Hyaluronic Acid 2% + B5, but it does also contain a couple of other nourishing ingredients. Are they worth the extra cash though? Probably not.



This serum has a watery texture, so much so that when you shake the tube you can hear the liquid moving around.



The serum has a light lemon-like scent which is pleasant but it is a little like natural product cosmetics that have that slight off-scent.



This serum lasts for 6M.

Here’s what the brand says about the product:

A plumping 2% Hyaluronic Acid complex with Vitamin C to help hydrate and brighten tired-looking skin.

When: A youth-boosting serum to target morning skin concerns including dullness, dehydration and fatigue

How: A powerful Superblend of wheat-based Hyaluronic Acid to plump and Vitamin C to help firm, tighten smooth and improve skin appearance

Why: For skin that is ready for your day, your way

Suitable for vegans.


This Works Morning Expert Hyaluronic Acid 3_20190701105816371


Practicality of use – user experience

This serum is a little annoying to use mainly because its texture doesn’t match the packaging. It is a very watery liquid that doesn’t work very well with a dispense pump and sometimes you’ll need to pump quite a few times before the product is dispensed. Additionally, even when the product finally comes out it sometimes sounds and looks like its being spat on our hand. Pumps work better with creams than serums!

Although I really appreciate the packaging in terms of preserving the ingredients, because light and contamination affect the product only minimally this way, it unfortunately doesn’t work well here. A glass dropper in a bottle would have been more convenient but yes, the ingredients wouldn’t be as protected then. It’s a trade off but if you don’t mind pumping a few times until you get the product then this is the best packaging for the formulation. There will be times though when you find it annoying!

Other than that, the product is easy to spread but it feels slightly sticky to the skin. That’s normal though and it is due to the 2% hyaluronic acid contained. Just make sure to moisturise right after and all is well!


Skin compatibility

This serum is compatible with all skin types. However, if you have sensitive skin it’s always best to try a little at the back of your hand first. If you are concerned contact a medical doctor.

Do not use cosmetics on broken skin.



I can’t say that I saw any results from this serum but bear in mind I use hyaluronic acid in my skincare regime already, meaning that I am already getting the results. What I can say is that hyaluronic acid is a must have ingredient that is backed by science, all info here, and if you don’t have it already in your skincare routine you are missing out. When I first introduced it to my skincare routine my skin became more thick, plump and healthy looking and feeling.

I also tested this serum under makeup, before the This Works In Transit Camera Mask, Moisturiser & Primer and although my skin felt ready to take on the world, it wasn’t always a good option for makeup. Sometimes my foundation ended up peeling a little from corners, something that it doesn’t otherwise do, but other times it was fine. It’s a hit and miss situation which might be risky!

However, there is no reason to take the risk, the This Works In Transit Camera Mask, Moisturiser & Primer already contains hyaluronic acid (sodium hyaluronate to be exact which is the same form contained here) so you are not gaining that much from using this serum at the same time. Granted there is probably more of it in the serum than in the primer but if you also use hyaluronic acid in your night routine then that’s probably enough of the stuff!


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This serum contains 23 ingredients of which 10 will offer you some skincare benefit (some more than others), 2 potential negatives and 9 irritants.

This serum contains 2% hyaluronic acid (sodium hyaluronate), vitamin C and a couple of other good ingredients but that’s pretty much it. It’s not the most impressive skincare serum and it sort of has to be given its price. Especially considering that there are much cheaper hyaluronic acid options out there like the £5.90 The Ordinary Hyaluronic Acid 2% + B5.

Additionally, it doesn’t really add much to the already amazing This Works In Transit Camera Mask, Moisturiser & Primer which is way superior ingredient-wise. Given that this hyaluronic serum is marketed as a morning product, it would be then used in combination with the primer-moisturiser and not add much. Not to mention that it doesn’t work too well under makeup.

To keep this article short, I am only listing the skin nourishing or skin positive/negative ingredients and ignoring the ones that only play formulation purposes. For the full list of these product’s ingredients scroll down to the “full list of ingredients” section.


Ingredient positives:

  1. Water (Aqua) based formulation.
  2. Glycerin – Found naturally in the skin so can be seen as a skin replenishing ingredient. A skin conditioner that helps improve and smooth the appearance of skin. A good moisturiser that is almost always present in moisturising products.
  3. Ascorbyl Glucoside– Stable form of vitamin C and anti-oxidant. Replenishes skin, makes it smoother, brighter, and younger looking. Can also improve uneven skin tone
  4. Sodium Hyaluronate – Known in the science community as “the fountain of youth” compound. Can hold up to 1000 times its weight in water, so it is a king moisturiser. Helps wounds heal faster and increases collagen production leading to younger looking skin. For more info and all the scientifically proven claims see “Hyaluronic acid – the fountain of youth?”
  5. Albizia Julibrissin (Persian Silk Tree) Bark Extract – Skin replenisher and conditioner.
  6. Sodium Levulinate – Skin conditioner and preservative.
  7. MarrubiumVulgare (Horehound) Extract – Skin conditioner and fragrance.
  8. Xanthan gum – Skin conditioner. Holds water and improves the shelf life of the product.
  9. Ethylhexylglycerin – A weak preservative and skin conditioner that is often used in ointments for eczema.
  10. Citric Acid– A natural preservative, can be used to even out skin tone.


Ingredient negatives:

  1. Parfum (Fragrance) – This ingredient represents an undisclosed mixture of compounds that give the product scent. There’re more than 3000 molecules that fall under this category and I personally do not like that there are some ingredients that are undisclosed and hidden under this general name. Fragrance also does not offer any skin care benefit, in fact there is some evidence that it can damage the skin.
  2. Dehydroacetic Acid – A preservative, fungicide and bactericide killing off and preventing the growth of microorganisms. Controversial reports, some classify this as toxic and others as safe.


Ingredients that can cause irritation to some:

This is actually really case specific, as different people have different sensitivities and allergies. Just because a compound has been reported by some to cause sensitivity, it doesn’t mean you will have an issue. “Sensitizer” compounds being present is not a negative in my opinion, as this is the case with pretty much everything out there and funnily enough I’ve seen products that are targeted specifically for sensitive skin, containing some compounds that have been reported by some, or are known to be, sensitizers.

If you have sensitive skin or you are prone to skin sensitisation and unwanted reactions, try a little bit of this at the back of your hand first and consult a medical doctor if you are concerned.

Check out: What is sensitive skin? What are the causes and what can we do?

The following compounds present in this serum have been either proven or claimed by some to be sensitizers, irritants, allergens etc: PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Sodium Levulinate, Benzyl Alcohol, Sodium Hydroxide, Parfum (Fragrance), Linalool, Citric Acid, Limonene.


Full list of ingredients:

Aqua (Water), Glycerin, Ascorbyl Glucoside, Sodium Hyaluronate, Albizia Julibrissin (Persian Silk Tree) Bark Extract, Heptyl Glucoside, PEG-40 Hydrogenated Castor Oil, Phenoxyethanol, Sodium Levulinate, Benzyl Alcohol, MarrubiumVulgare (Horehound) Extract, Sodium Anisate, Xanthan Gum, Sodium Hydroxide, Phytic Acid, Ethylhexylglycerin, Parfum (Fragrance), Dehydroacetic Acid, Linalool*, Heptanol, Sodium Benzoate, Citric Acid, Limonene*.

* Naturally occurring essential oils.


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Although this is not a bad skincare product (ignoring the fact that it contains unnecessary fragrance) it is too expensive for what it is and there is no reason in using it if you already use the This Works In Transit Camera Mask, Moisturiser & Primer. And if you don’t use the latter, you should!


I am not affiliated with any company or brand. These are my views and experiences.
Beauty is a very personal thing, we all have different skin, requirements and biological build which can influence things. What worked for me might not work for you and vice versa. Have you ever tried these products? Did they work for you? Let me know your experiences below!

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