Quick answer: Singapore’s humidity doesn’t guarantee dewy skin. Air-con and daily stress leave faces thirsty. These seven serums sink in without feeling sticky. La Roche-Posay Hyalu B5 is a dermatologist favourite for sensitive skin; Drunk Elephant B-Hydra™ gives an instant glow; and Innisfree Green Tea Seed offers a gentle, budget-friendly boost.
Drunk Elephant B-Hydra™ Intensive Hydration Serum
You’ll find this online at Sephora, and it’s one of those serums that makes you wonder why you waited so long to try it. The formula pairs provitamin B5 with pineapple ceramide, so it hydrates deeply while brightening things up a notch. It layers like a dream under sunscreen—zero pilling or grease—and fans say their skin feels softer and more resilient after a couple of weeks.
Available online 24/7 through Sephora Singapore. For inquiries, email [email protected]. Drunk Elephant Website.
Ideal if you want a glow that doesn’t feel heavy in our humidity. Great for anyone whose skin looks sian by midday in the air-con.
La Roche-Posay Hyalu B5 Serum
La Roche-Posay has a knack for calming angry, sensitive skin, and this serum is one of its quiet achievers. Hyaluronic acid and vitamin B5 team up to plump fine lines and reinforce your barrier, so your face holds onto moisture for the whole day. Locally, it’s a go-to for people whose skin freaks out at new products—dermatologists swear by its gentle profile.
Find it at Watsons Ngee Ann City, 391 Orchard Road, #B2-13, Singapore 238872, open daily 10:00 AM–10:00 PM. Phone: +65 6509 6000. La Roche-Posay Singapore Website.
Best for sensitive, reactive skin that still needs a solid hit of hydration—think of it as insurance against flaky patches.
If your face drinks up hydration and still asks for more, you might also want to look at our guide to Retinol Creams in Singapore—they complement a good serum beautifully.
No one bought a spot on this list. If we have overlooked you, say so and we will consider it next time round.
Vichy Mineral 89 Hyaluronic Acid Serum
Vichy’s Mineral 89 leans on French volcanic water spiked with hyaluronic acid, and it’s designed to go on right after cleansing—like a primer for your moisture barrier. The texture is so lightweight you’ll forget you applied it, but after a few days, you notice cheekbones looking a little bouncier. A solid pick if your skin is shedding from too much air-con.
Available at Guardian City Square Mall, 180 Kitchener Road, #B1-18/19, Singapore 208539, open daily 10:00 AM–10:00 PM. Phone: +65 6716 6888. Vichy Singapore Website.
Suits anyone transitioning to a more grown-up routine, or someone who just wants a no-fuss daily layer that reinforces their skin against environmental nonsense.
Medik8 Hydr8 B5 Intense
Medik8 is for the friend who takes skincare seriously—properly researched, clinical-grade love. This one packs multiple molecular weights of hyaluronic acid so the moisture reaches different layers of your skin, plus vitamin B5 and a prebiotic to keep your microbiome calm. You get a full 24 hours of comfort; it never goes sticky, which is a blessing in our weather.
Online through Lookfantastic Singapore with shipping nationwide. Email: [email protected]. Medik8 Website.
Suits anyone who works in a chilly office and wants hydration that lasts through back-to-back meetings. Also good for those who layer actives and need a soothing buffer.
Innisfree Green Tea Seed Hyaluronic Serum
Innisfree brings Jeju’s green tea to your vanity table, and this serum is proof that good hydration doesn’t have to cost a bomb. It uses five sizes of hyaluronic acid—imagine a hydration delivery squad reaching every nook—and finishes with a dewy-but-matte look that our humidity handles well. Allantoin and panthenol in the mix soothe any redness, which is a nice bonus.
Flagship at Plaza Singapura, 68 Orchard Road, #01-63 to 64, Singapore 238839. Phone: +65 6336 3179. Open daily 10:00 AM–9:30 PM. Innisfree Singapore Website.
Suits students, first-jobbers, or anyone who wants reliable, fuss-free moisture that smells fresh and feels kind to skin.
For the rest of your ritual, check out Cleansing Milks in Singapore and Facial Salons in Singapore—whether you’re cleansing or getting expert hands on your face, we’ve got suggestions.
Grown Alchemist Instant Smoothing Serum
Grown Alchemist takes a botanical path—sodium hyaluronate, resurrection plant extract, aloe—to smooth skin and leave it velvety without synthetic fillers. The formula is certified clean, and you’ll find it at Sephora Singapore or online. It’s the kind of serum you reach for when your skin looks tired and you want that ‘yes, I sleep eight hours’ radiance.
Available at Sephora stores and online. Grown Alchemist Website.
Suits clean beauty folks who read ingredient lists like novels, and anyone whose skin prefers plant-based hydration over clinical formulas.
Juliette Armand Collagen Elastin Serum
Juliette Armand brings a Greek spa sensibility to Singapore, focusing on marine collagen and elastin to firm and hydrate. The serum forms a barely-there film that locks moisture in, so you’re not just plumping lines but also preventing water loss. Mature complexions especially respond to it, and the brand is distributed here via TSK Aesthetics, so you can call for a consultation.
By appointment at Blk 1 Ang Mo Kio Industrial Park 2A #07-03 AMK Tech 1, Singapore 568049. Phone: +65 6481 2388. Juliette Armand Singapore Website.
Suits anyone in their 40s and beyond who notices skin doesn’t snap back the way it used to, or those who want a professional-grade anti-ageing boost.
No one bought a spot on this list. If we have overlooked you, say so and we will consider it next time round.
How to choose
Not all hyaluronic acid serums feel the same on the skin. If you lean oily or live in a non-aircon apartment, lightweight, water-like options like Vichy Mineral 89 or Innisfree will disappear without a trace. Dry, tight faces—especially after a day in aggressive air-con—often need the multi-weight approach Medik8 offers for longer-lasting relief. Sensitive types should look for barrier-boosting partners like La Roche-Posay’s vitamin B5, which brings down redness while it hydrates.
Your budget matters too. Innisfree sits at the friendlier end; Drunk Elephant and Vichy land in the middle; clinical-grade picks like Medik8 and professional marine formulas from Juliette Armand naturally command a higher price. Where you buy can influence the final cost, so keep an eye on Sephora, Watsons, and Guardian during sales seasons.
Texture is another decider. Some serums are meant to be a booster—applied before your moisturiser—while others, like Grown Alchemist, double as a light smoothing step that can replace a morning lotion in humid weather. Think about how many steps you’re realistically going to do before your kopi gets cold.
| Brand | Key Ingredients | Texture | Best For | Where to Buy |
|---|---|---|---|---|
| Drunk Elephant B-Hydra™ | Provitamin B5, Pineapple Ceramide | Lightweight, fast-absorbing | Dull, dehydrated skin needing a glow | Sephora online |
| La Roche-Posay Hyalu B5 | Hyaluronic Acid, Vitamin B5 | Fluid, non-greasy | Sensitive, easily irritated skin | Watsons (e.g., 180 Kitchener Rd) |
| Vichy Mineral 89 | Hyaluronic Acid, Vichy Thermal Spring Water | Lightweight booster, gel-like | Prepping skin, strengthening barrier | Guardian stores islandwide |
| Medik8 Hydr8 B5 Intense | Multi-weight Hyaluronic Acid, Vitamin B5, Prebiotic | Non-sticky serum | Intense, 24-hour moisture (air-con warriors) | Lookfantastic Singapore |
| Innisfree Green Tea Seed Hyaluronic | 5-size Hyaluronic Acid from Jeju Green Tea, Allantoin, Panthenol | Featherlight essence | All skin types, especially redness-prone | Takashimaya (flagship), multiple outlets |
| Grown Alchemist Instant Smoothing | Sodium Hyaluronate, Resurrection Plant Extract, Aloe | Velvety serum | Dry, tired-looking skin, clean beauty fans | Sephora stores and online |
| Juliette Armand Collagen Elastin | 10% Marine Collagen, 2% Elastin | Light film-forming liquid | Mature skin seeking firmness | By appointment at Ang Mo Kio, TSK Aesthetics |
Summary
Singapore’s humidity doesn’t mean you can skip hydration—these serums prove that a lightweight layer can be the difference between meh skin and a fresh, plump face. From dermatologist-tested staples like La Roche-Posay to plant-based luxuries like Grown Alchemist, there’s something here for every skincare style. Whichever you choose, your skin will thank you with that coveted glassy glow.
Details can change, so always confirm with the business before heading out.
Frequently asked questions
When should I apply a hydrating serum in my routine?
Right after cleansing and toning, while skin is still slightly damp. This helps the hyaluronic acid pull moisture in. Follow with moisturiser to seal everything.
Can I use a hydrating serum if I have oily skin?
Yes, oily skin can still be dehydrated. Look for lightweight, non-comedogenic formulas like Vichy Mineral 89 or Innisfree—they hydrate without clogging pores.
Are these serums safe to use with retinol or exfoliating acids?
Many are. For instance, Medik8’s Hydr8 B5 Intense is often paired with actives to buffer potential irritation. As always, patch test and introduce one product at a time.
How long does a bottle typically last?
With daily use (a pea-sized amount), most bottles last about 2–3 months. Usage varies based on product size and how much you apply.
Do I still need a moisturiser after using a hydrating serum?
Generally, yes. Serums deliver hydration but a moisturiser locks it in. If you’re in a rush, some, like Drunk Elephant B-Hydra, layer well under sunscreen for a simplified morning.
Where can I get the best deals on these serums in Singapore?
Check the brand’s official website or authorised retailers like Watsons, Guardian, and Sephora during sales events. Innisfree often has member promotions; Medik8 and Drunk Elephant are sometimes discounted on Lookfantastic.