Eucerin Hyaluron-Filler Vitamin C Booster review

Are you tired of Vitamin C serums that go bad within a few weeks?

You’re not even halfway through the bottle and your serum has already turned brown – the colour of death for Vitamin C.

That won’t happen with Eucerin Hyaluron-Filler Vitamin C. Each tiny bottle only contains enough juice for a week.

You mix it in when you’re ready to use it, so you know it’s as fresh as it can be.

Intrigued? Here’s everything you need to know about this drugstore Vitamin C serum:

What’s In Eucerin Hyaluron-Filler Vitamin C Booster?


Vitamin C is one of the 5 antiaging superstars (you can find out more about the others here). It does wonders for your skin:

Vitamin C comes in many forms. Ascorbic Acid, the one Eucerin uses, is the pure form. This is both a good and a bad thing.

It’s good because Ascorbic Acid is the most effective form of Vitamin C out there. Hands down.

It’s bad because Ascorbic Acid is unstable and irritating. Thankfully, Eucerin has fixed both issues.

For starters, the serum contains only 10% Ascorbic Acid, a smaller dose than the 15% traditionally used in skincare, that usually doesn’t irritate skin – not even sensitive skin.

Plus, you need to activate Vitamin C by adding it to the formula when you’re ready to use it. Each bottle will last you a week, so you can reap all the benefits without worrying about it losing effectiveness overtime.

Related: Types Of Vitamin C Used In Skincare: Which One Should You Choose? 


Squalene is a natural component of human sebum. It’s super moisturising… and super unstable. It goes bad quickly and makes you breakout.

But hydrogenate it (ie, turn it from a liquid to a semi-solid using hydrogen gas) and it turns into squalane. It’s way more stable and 100% non-comedogenic.

Squalane oil is super moisturising. Because it’s so similar to human sebum, your skin absorbs it straight away. It doesn’t leave a greasy residue behind.

Once on your skin, squalane strengthens the skin’s protective barrier so that moisture stays in and germs, pollutants and irritants stay out.

Related: The Complete Guide To Squalane In Skincare: What It Is, What It Does, And How To Use It


Sodium hyaluronate is a form of hyaluronic acid that attracts and binds to the skin up to 1000 times its weight in water. Plus, it works well both in high and low humidity conditions.

When skin has that much moisture, it plumps up. This alone is enough to make your fine lines look smaller – temporarily. Hydration also makes skin soft and gives the complexion a dewy glow (think Korean skin).

P.S. Sodium Hyaluronate isn’t the only moisture magnet here. Glycerin does the same thing, but on a smaller scale.

Related: Why You Need Hyaluronic Acid In Your Skincare Routine, No Matter Your Skin Type

Struggling to put together a skincare routine that minimises wrinkles, prevents premature aging, and gives your complexion a youthful glow? Download your FREE “Best Anti-Aging Skincare Routine” to get started (it features product recommendations + right application order):


A watery, yellowish serum that sinks into your skin immediately.


Pretty neutral and forgettable.

How To Use It

  • Remove foil (but leave the cap on).
  • Press the button at the bottom of the bottle to release Vitamin C.
  • Shake well for 10 seconds to activate the formula.
  • Twist cap to remove it.
  • Press the button again to release the product and use it.

I use it every morning after cleansing to supercharge the sun protection of my sunscreen (no, Vitamin C does NOT make skin more prone to sun damage).

Performance & Personal Opinion

Eucerin Hyaluron-Filler Vitamin C Booster sinks in quickly into my skin without leaving any greasy residue behind.

It doesn’t sting either. 10% is a fairly low concentration and is unlikely to cause irritations. BUT, if your skin is particularly sensitive and throws a tantrum every time you use something new, even this low dose could be too much.

A little tingling is totally fine. Stinging, any kind of pain, redness or irritation is NOT. If you experience these symptoms, cut back to 2 or 3 times a week.

As the formula stays fresh for the whole week, Vitamin C can do its best work. After every use, my skin is brighter and smoother. If you have any dark spots left behind by pimples, this’ll help you fade them away faster.

The only thing I don’t like? Studies show that Vitamin C works better when paired with fellow antioxidants Vitamin E and Ferulic Acid. Sadly, you won’t find them here.

I guess Eucerin left them out to keep them price low. There’s always a trade-off, isn’t there?

Related: Is It Ok For Skincare Products To Tingle?

eucerin hyaluron filler vitamin c booster

Who Is This For?

  • Anyone who’s looking for a Vitamin C serum that doesn’t go bad within a few weeks.
  • Sensitive skin.

Who Is This NOT For?

  • Acne-prone skin (L-Ascorbic Acid can aggravate breakouts)
  • If you can afford a serum with Vitamin C + Vitamin E + Ferulic Acid, that’s still the better option for anti-aging.


A white, 8 ml tube that lasts for 7 days. You can also buy a pack of 3.

Does Eucerin Hyaluron-Filler Vitamin C Booster Live Up To Its Claims?

An anti-ageing serum with 10% pure and freshly-activated Vitamin C for all skin types. Mostly true. I wouldn’t recommend it to acne-prone skin because it could aggravate breakouts.
A fast-absorbing booster that strengthens and smooths the skin while plumping up wrinkles. Skin looks fresher and more radiant in just seven days. True.

Price & Availability

£20.00 at Feel Unique and Look Fantastic

Do You Need It?

If you can’t tolerate 15% L-Ascorbic Acid and are on a budget, this is a good option to consider.

Dupes & Alternatives


Aqua, Ascorbic-Acid, Glycerin, Squalane, Isopropyl Palmitate, Dibutyl Adipate, Glyceryl Stearate, Distarch Phosphate, Methylpropanediol, Sodium Hyaluronate, Glycyrrhiza Inflata Root Extract, PEG-40 Stearate, Sorbitan Stearate, Sodium Cetearyl Sulfate, Dimethicone, Acrylic Acid-VP Crosspolymer, Xanthan Gum, Trisodium EDTA, 1-2-Hexanediol, Piroctone Olamine, Phenoxyethanol, BHT, Parfum