Affiliate Links

Last Updated on September 2, 2025 by Giorgia Guazzarotti

how to layer serums

How do you layer serums? It’s kinda easy when you only use one. But me, I collect serums like I used to collect lipglosses. My bathroom cabinet is full to the brim with them. You’ll find the occasional cleanser or sheet mask in there, but you’ll have to wade through the sea of serums to get to them. I have one for everything. Retinol for wrinkles. Antioxidants for prevention. Vitamin C for brightening. Hyaluronic acid for hydration. You name it, it’s there. Here’s how I layer them to get the most out of them:

What Are Serums (Really)?

Why the obsession with serums? Because they actually do something. Not like a moisturizer that just sits on top making you feel soft for a bit. Serums are where the good stuff lives – the retinol, the vitamin C, the niacinamide – all packed in and light enough to actually sink in instead of hanging around on the surface pretending to help.

And the best part? You can swap them around depending on what your skin’s whining about that day. Dull and grey? Vitamin C. Flaky patches? Hyaluronic acid. Random breakout on your chin the night before an event? Niacinamide. It’s like having a whole shelf of options and you just grab whatever matches your skin’s bad mood.

Cleansers wash, moisturizers trap stuff in, but serums are the step that actually fixes things. They’re the reason people (me included) end up hoarding them like snacks. One turns into five, five turns into a bathroom shelf, and suddenly you’re the kind of person with a “morning brightening lineup” and a “nighttime wrinkle squad.”

Related: Why You Need To Use Serums In Your Skincare Routine

Why Should You Layer Serums?

Why not use just the one? Well, you can totally do that. Sometimes, I do, too. In summer, when my skin is soft and plump, I just use an antioxidant serum in the morning and alternate between a vitamin C and a retinoid serum in the evening. But, in winter, my skin gets drier. I have to add a hyaluronic acid serum to the mix to keep my skin hydrated. Otherwise, it dries up, flakes and looks downright horrible.

If you’re trying to fix more than one skin woe, using more than one serum makes sense. Some serums are multi-taskers, but sometimes, you just need something more powerful. That’s when you use two (or three) separate products.

This is also where that whole “skin cycling” thing comes in. Basically, instead of slapping on three strong serums in one night and frying your face, you spread them out. One night retinol, the next night glycolic, then maybe just something hydrating in between so your skin can chill. Same end result – you’re still using everything you want – but without your skin screaming at you the next morning.

Related: Why Serums Are The Workhorses Of Your Skincare Routine

Don’t know which serums and ingredients you can safely use together without compromising their effectiveness? Download your FREE “How To Combine Actives Like A Pro” to find out:

How Many Serums Can You Layer At One Time?

There isn’t a definite answer. But, I’d stop at 3. If you add more than that, you’re just throwing money away. Your skin can only take in so much at once. If you throw on five serums, chances are the last two won’t penetrate properly. They’ll just sit there until you wash them off. It’s not only wasteful but can actually cause pilling when you layer makeup on top. Less is often more.

Plus, it’ll take you an hour to finish your skincare routine. If you have lots of different skin woes to fix, I recommend you go for a multi-tasking serum and then add an extra one or two to address your most pressing problem.

Let’s say, you want to reduce wrinkles, hydrate your skin, and fade away your dark spots. I’d opt for a hydrating retinol serum (the multi-tasker) and then add a hydroquinone serum to help fade the dark spots even faster. If you have sensitive skin, I don’t recommend you use more than one serum at a time. There’s only so little your skin can take, so don’t go overboard!

Related: How Many Skincare Products Is It Safe To Use At A Time?

peter thomas roth retinol infusion pm night serum 01

What’s The Best Way To Layer Serums?

As a general rule, the order depends on the texture. The lightest-textured serums go first and the thickest-textured serums go last. But I also like to take into consideration the type of active ingredient your serum has. Retinoids, vitamin C and anything that targets dark spots should be applied on clear skin to better be able to penetrate it.

Let’s say that it’s winter and I’m using a hyaluronic acid serum to drench my skin in moisture and a retinol serum to treat wrinkles. Unless the retinol serum has a far thicker texture than the hyaluronic acid serum, I go in with the retinol first.

My reasoning is simple: wrinkles are, for me, a more serious concern than dehydration. I want that retinol to be the first thing that hits my skin after cleansing so I know that nothing stands in its path to the deeper layers. Hyaluronic acid works well even when left on the surface of the skin (in fact, only some types of low molecular weight hyaluronic acids penetrate skin anyway), so it makes sense to apply it later.

To make it easier for your serum to penetrate your skin, apply it after cleanser and exfoliating (only if you’re exfoliating that day – don’t do this every time!) but before moisturizer. Your moisturizer has a much thicker texture that makes it difficult for serums to get through it. If you apply your moisturizer first, you’re sabotaging its effectiveness.

Common Mistakes When Layering Serums

Here’s the thing – layering serums sounds simple, but it’s also the fastest way to wreck your skin if you don’t know what you’re doing. I’ve seen people go from “I’m glowing” to “why is my face falling off?” in one night just because they stacked the wrong stuff together. These are the mistakes that come up over and over again:

  • Throwing everything on at once: Retinol, glycolic acid, vitamin C, maybe even that random exfoliating serum you forgot you had. Sounds powerful, but it’s really just a fast track to red, flaky, burning skin. Pick one strong active per routine. Your face isn’t a chemistry set.
  • Messing up pH: I know, it sounds nerdy, but it matters. Vitamin C (ascorbic acid) needs a low pH to work. Put something more alkaline straight after and boom – you just canceled out your serum. It’s like pouring orange juice into coffee.
  • Skipping patch tests: Nobody loves doing them, but they save you from waking up with a full-face rash because you decided to slather something brand new all over your skin. One tiny patch test saves a week of misery.
  • Forgetting sunscreen: If you’re using retinol, acids, or vitamin C at night but skipping SPF in the morning, you’re wasting your time and money. Your skin will just end up more damaged than when you started.

FAQs About Layering Serums

Can I mix vitamin C and retinol in the same routine?

Yeah, you can, but do you actually want to? That combo used to be a big no-no because vitamin C wants one pH and retinol wants another. Now some formulas are more stable, so technically they’ll play nice. The real problem is your skin. A lot of people just end up red and flaky. Easiest way to keep it simple: vitamin C in the morning, retinol at night. Less drama, same benefits.

Do I really need to layer serums, or is one enough?

Honestly, one is fine if you’ve only got one big issue. Dry? Grab hyaluronic acid. Breaking out? Go for niacinamide. But if your face has decided to throw three problems at you at once – like you’re dry, breaking out, and noticing fine lines – that’s when layering makes sense. Otherwise, you’re just wasting time and money.

Can I layer niacinamide with everything?

Pretty much. Niacinamide’s the chill one in the group. It doesn’t argue with anyone. Vitamin C, retinol, acids – it just hangs out and makes everything a bit calmer. If your routine feels harsh, niacinamide’s the one that keeps the peace.

Related: The Truth About Vitamin C And Niacinamide: Can I Really Use Them Together?

Should I apply serums on damp or dry skin?

Depends. Hydrating stuff like hyaluronic acid? Damp skin all the way – it pulls the water in and gives you that plump look. Retinol, vitamin C, exfoliating acids? Dry skin, otherwise you’re asking for irritation. Quick rule: hydration = damp, strong actives = dry.

What Are The Best Serums Out There?

BEST EXFOLIATING SERUMS

  • Drunk Elephant T.L.C. Framboos Glycolic Night Serum ($90.00): This exfoliant contains two exfoliants. Glycolic Acid to fade away dark spots and Salicylic Acid to unclog pores. Available at Cult Beauty, Sephora and SpaceNK
  • Paula’s Choice Resist Daily Smoothing Treatment with 5% AHA ($33.00): A wonderful low strength Glycolic Acid exfoliant that makes skin softer, smoother, and brighter. Available at Paula’s Choice 
  • Paula’s Choice Skin Perfecting 2% BHA Liquid ($29.00): The cult exfoliant from the brand, it unlclogs pores and treats blackheads and acne. Available at Cult Beauty, Dermstore, Paula’s Choice, Sephora, and SpaceNK.

BEST HYDRATING SERUMS

  • La Roche Posay Heal B5 Hyaluronic Acid Serum (£39.99): A simple, no-frills Hyaluronic Acid serum with Vitamin B5 to soothe redness. Available at Boots and La Roche Posay
  • Niod Multi-Molecular Hyaluronic Acid (£30.00): The most hydrating and plumping serum I’ve tried, it has 13+ forms of Hyaluronic Acid to hydrate every layer of skin. Available at Beauty Bay, Cult Beauty, and Niod
  • The Ordinary Hyaluronic Acid 2% + B5 (£7.90): A simple formula with Vitamin B5 to soothe and hydrate skin. It’s fragrant-free and suitable for sensitive skin too. Available at Beauty Bay, Boots, Cult Beauty, SpaceNK, The Ordinary, and Ulta

BEST RETINOL SERUM (WRINKLE-FIGHTING)

  • Paula’s Choice Skin Balancing Super Antioxidant Concentrate Serum With Retinol ($39.00): 0.03% retinol. Better for oily, combination, and acne-prone skin. Available at Paula’s Choice
  • Paula’s Choice Resist Wrinkle Repair Retinol Serum ($55.00): 0.1% retinol. A silly serum loaded with antioxidants. Available at Paula’s Choice
  • Peter Thomas Roth Night Infusion PM ($65.00): 1.5% retinol release gradually over a period of several hours to make it gentler on your skin. Has a moisturising squalane base and its fair share of antioxidants. Available at Beauty Bay, Cult Beauty, Look Fantastic, Peter Thomas Roth, Revolve, and Ulta

BEST SKIN-BRIGHTENING SERUMS (FADING AWAY DARK SPOTS)

  • Paula’s Choice 10% Azelaic Acid Booster ($36.00): This booster contains both azelaic acid and salicylic acid, an oil-soluble exfoliant that can get inside your pores and unclog them from within. Great at treating acne, you can use it on its own or mix it with your moisturiser. Available at Cult Beauty, Paula’s Choice, Sephora, and SpaceNK
  • Good Molecules Daily Brightening Serum ($8.00): A simple serum with Arbutin and Hyaluronic Acid to hydrate skin and reduce discolourations. Available at Ulta.
  • The Ordinary Alpha Auburn 2% + HA ($11.50): A no-frills Alpha Arbutin serum with hyaluronic acid to plump up skin while fading away dark spots. Available at Beauty Bay, Cult Beauty, Look Fantastic, Sephora, The Ordinary, and Ulta

BEST SOOTHING SERUMS

  • Niod Modulating Glucosides (£27.00): It relieves sunburns and irritations. Available at Brown Thomas, Look Fantastic, Niod, and Selfridges
  • Paula’s Choice Calm Redness Relief Repairing Serum ($49.00): A gentle formula infused with ceramides to repair the skin’s barrier and soothing extracts to calm down irritations. Available at Cult Beauty and Paula’s Choice

BEST VITAMIN C SERUMS (WRINKLE-PREVENTION + BRIGHTENING)

  • MaeLove Glow Booster ($27.95): The cheapest Vitamin C serum in this list, it does everything the others do, but it contains a citrus extract that may be irritating for sensitive skin. Available at Maelove.
  • Paula’s Choice C15 Booster ($46.75): It’s enriched with Hyaluronic Acid and glycerin to deeply hydrate skin. Available at Cult Beauty, Dermstore, Paula’s Choice, Sephora, and SpaceNK.
  • Skinceuticals CE Ferulic ($169.00): The original Vitamin C serum, it costs an arm and a leg, but it works wonders and delivers what it promises. Available at Dermstore and Skinceuticals.

The Bottom Line

You can totally layer all the serums you need. Just make sure you apply those with the lightest texture and most important actives first.