Hyaluronic Acid Serum: 7 Best Picks for Every Budget in the UK

Skip the serum step and no amount of moisturiser will save you. That’s the short version.

Hyaluronic acid sits between your cleanser and moisturiser, flooding skin with the kind of hydration that actually plumps fine lines and makes everything feel softer — and after going through what felt like half the UK’s supply to find the ones worth buying, I can tell you that the price tag has very little to do with whether something works. A £9 Garnier serum applied correctly will beat a £60 bottle used on bone-dry skin every single time.

Wait — isn’t hyaluronic acid an exfoliating acid?

No, and this trips people up constantly. HA is a humectant, which means its entire job is to attract water molecules and hold them at the skin’s surface rather than stripping anything away. One molecule can hold up to 1,000 times its weight in water, which sounds like marketing copy but is just chemistry. Your skin plumps up, looks dewier, and fine lines temporarily soften because they’re literally filled with water. The catch is that HA needs moisture to grab onto — apply it to completely dry skin and it’ll pull hydration from deeper layers instead, which is the opposite of what you want. Pat your face with a damp cloth after cleansing, or just don’t fully dry off before applying. That one habit change makes a noticeable difference.

The Drugstore Picks

You do not need to spend £50 here.

CeraVe’s formula earns its reputation partly because it combines HA with ceramides, which means you’re getting hydration and barrier support in a single step — genuinely useful for anyone with sensitive or easily irritated skin. The Garnier option is the one I’d hand to someone who’s never tried a serum before and wants to test the concept without much financial risk. Both absorb quickly and don’t leave that sticky, sitting-on-top-of-your-face feeling that puts people off serums in the first place.

Worth spending more on these

Some formulas earn their higher price through better ingredient combinations rather than fancier bottles.

The Revolution Skincare serum is an odd one to slot into the “premium” category given the price, but the 2% HA concentration is genuinely higher than most budget options, and the texture is noticeably more cushioning on skin. Sendo’s phytocollagen addition is interesting if you’re specifically targeting fine lines — HA plumps from hydration alone, but pairing it with collagen-supporting ingredients tends to extend how long that effect lasts throughout the day. These are the serums worth reaching for when your skin is going through something — stress, a long flight, a bad skin week — and you need results rather than just maintenance.

Matching serum to skin type

Texture matters more than most people realise when choosing between options, and getting it wrong makes people think HA doesn’t work for them when really they’ve just got the wrong formula for their skin.

Oily or combination skin does best with water-thin gel formulas that absorb without any residue. The moment you feel something sitting on top of your skin, you’ll either pile on too much powder to compensate or stop using the serum altogether. One pump, damp skin, lightweight moisturiser on top — that’s the whole routine.

Dry or dehydrated skin can handle richer textures, and actually benefits from HA serums that include glycerin or ceramides alongside the HA itself, since those ingredients help prevent the moisture from evaporating back off the surface before your moisturiser goes on. Layering a HA serum under a heavier night cream is genuinely one of the most effective things you can do for persistently dry skin, particularly through winter.

Sensitive skin needs simplicity. Short ingredient lists, no fragrance, no alcohol near the top of the INCI list. The CeraVe formulas are the obvious recommendation here — they’ve been tested specifically for sensitive and compromised skin barriers, which is why dermatologists keep recommending them even when far flashier options exist.

Mature skin benefits most from HA combined with peptides or vitamin C, since hydration alone won’t address the structural changes that come with age. Still worth using a standalone HA serum if that’s what you have — the plumping effect reduces the visibility of fine lines regardless — but if you’re choosing between two options, pick the one with more supporting ingredients.

How to actually use it (most people get this wrong)

Application is everything. The product is secondary.

Damp skin first, always. Then one or two pumps — seriously, more is not better here and excess product just pills under your moisturiser. Give it about 30 seconds before applying moisturiser while your skin is still slightly tacky; that’s when the HA is most effectively locked in by the barrier your moisturiser creates. Skipping moisturiser after HA is the most common mistake I see, and it’s why people sometimes feel drier after using these serums than before. The HA has drawn moisture to your surface but without an occlusive layer on top, that moisture just evaporates. Your moisturiser is what makes the whole thing work.

HA is gentle enough to use twice daily, and the morning application specifically gives you that plump, slightly-blurred look that makes skin look like it’s filtered in real life. Evening use lets everything absorb properly overnight. Worth doing both if you can.

One more thing: HA plays well with retinol, vitamin C, and niacinamide — you don’t need to choose between them. Just introduce one active at a time so you can actually tell what your skin likes. And if you hit a patch of irritation from a new active, leaning harder on your HA serum during that period genuinely helps calm things down.

The honest bottom line

Hydration is the foundation that every other skincare step builds on — better texture, fewer breakouts, makeup that actually sits properly, reduced sensitivity to actives. Get this step right and the rest of your routine gets easier. My actual recommendation: start with the Garnier or CeraVe, use it correctly for four weeks, and if your skin wants more, step up to something with additional actives. Spending more from the start when you haven’t nailed the technique yet is just expensive experimentation.

Hey savvy shoppers! When the items in our articles catch your eye and you decide to buy through our links, we may earn a small commission at no extra cost to you. Think of it as a way of supporting us in bringing you the best content!

Frequently Asked Questions

Should I apply hyaluronic acid serum to wet or dry skin?

Damp skin, always. If you apply HA to completely dry skin, it can pull moisture up from deeper layers rather than drawing it in from the surface. After cleansing, either leave your face slightly damp or press a wet cotton pad over it before applying your serum.

How long does it take to see results from a hyaluronic acid serum?

You’ll notice immediate plumping and a smoother feel within the first few uses. More lasting changes to skin texture and fine lines typically show up after three to four weeks of consistent daily use.

Can hyaluronic acid serums be used with retinol or vitamin C?

Yes, HA pairs well with both. It actually helps buffer potential irritation from retinol by keeping skin hydrated. Apply HA first, let it absorb for about 30 seconds, then follow with your vitamin C or retinol product.

Is a more expensive hyaluronic acid serum actually better?

Not always. Budget serums like CeraVe and Garnier genuinely deliver hydration. Premium formulas often combine HA with additional actives like peptides or ceramides, which can speed up visible results — but a £10 serum used correctly will outperform a £60 one used wrong.

How much hyaluronic acid serum should I use per application?

One to two pumps is enough. HA works better in thin layers — loading on more product won’t improve results and can leave a tacky residue that pills under moisturiser.