Ever stared at your hair in the mirror and wished it grew faster or thicker? Hair growth serums are becoming a must-have for anyone wanting healthier, fuller locks. While they are not a cure for hair loss, many people find they can make a real difference when used consistently.
If you are curious about which ones work and how, here’s everything you need to know about hair growth serum.
Related Read: The Best Hair and Scalp Treatments for Hair Loss and Thinning From the Daily Vanity Beauty Treatment Awards 2025
What Is a Hair Growth Serum?
A hair growth serum is a lightweight treatment designed to be applied directly to the scalp to support healthier, stronger hair. Similar to how face serums target skin concerns, hair growth serums work at the root, nourishing follicles and keeping the scalp balanced.
Unlike oils or conditioners that mainly sit on your strands, they often contain vitamins, plant extracts, or other active ingredients that aim to reduce breakage and improve the overall condition of your hair.
While they won’t magically regrow lost hair, they can make your existing hair look fuller and healthier over time.
What Are the Best Hair Growth Serums in Singapore?
With so many options out there, picking the right hair growth serum can be a bit confusing. If you’re not sure where to start, here are some of the top serums that are worth trying for healthier, fuller hair.
MY SAO HERBAL ANTI-HAIR LOSS ESSENCE (BIO-ACTIVE BIRD’S NEST SCALP REVITALIZING ESSENCE)
Highly recommended by 10 Daily Vanity readers, who reviewed the MY SAO HERBAL ANTI-HAIR LOSS ESSENCE (BIO-ACTIVE BIRD’S NEST SCALP REVITALIZING ESSENCE) features a 100% drug-free, water-light formula designed for thinning hair.
What makes it stand out is its use of Sialic Acid Oligosaccharides (SAO), derived from bird’s nest and backed by patented hair care technology from the US, Japan, and China. The formula is designed to help nourish the scalp environment, supporting stronger-looking roots over time.
Application is simple too. It comes with a pen-brush applicator that lets you target specific areas like the hairline or sparse patches in just a minute or two a day—no mess, no complicated steps.
For those just starting out or targeting smaller areas like brows, sideburns, and asymmetrical hairline, the Starter Kit (S$138, 5ml) offers a lower-commitment option to try the formula.
For those who wish for a more consistent scalp coverage, the larger PROSAO Flagship Set Flagship Set (S$498, 25ml) is designed for longer use and full scalp application for 46 to 60 days.
Available on Shopee and TikTok—use exclusive code ‘MYSAODV38′ at checkout for 40% OFF!
Glamore GROW Hair Serum
Infused with 22 natural oils and extracts like rosemary, tea tree, and ginger, GROW Hair Serum nourishes the scalp and creates the perfect environment for healthier hair.
Its BioThriveB7 complex, caffeine, and hydrolyzed keratin strengthen strands, reduce breakage, and support fuller-looking locks.
Rich oils like argan, lavender, and cedarwood hydrate and smooth hair from root to tip. Lightweight and easy to apply without rinsing, this serum helps improve hair density and resilience over time.
Glamore GROW Hair Serum retails for S$93 from Glamore’s official website.
Coulisse Growth Plus+ Serum
Great for those with severe hair loss or pattern hair loss, Growth Plus+ Serum is a treatment designed to reactivate dormant hair follicles and support thicker, healthier hair.
Its scientifically proven cell growth activator helps repair and rejuvenate the scalp, prolonging the anagen phase of the hair growth cycle.
Simply apply section by section onto a towel-dried scalp, massage gently, and leave it on. With consistent use, this serum boosts hair density, promotes a healthier hair growth cycle, and gives visibly stronger, fuller-looking strands over time.
Coulisse Growth Plus+ Serum retails for S$357 from Coulisse’s official website.
The Ordinary Multi-Peptide Treatment for Hair Density
The Ordinary Multi-Peptide Treatment for Hair Density is great for anyone looking to boost hair thickness and overall scalp health.
Packed with a blend of peptides, caffeine, and hydrating ingredients, it works to nourish the scalp and strengthen hair from the root.
This lightweight serum helps support fuller-looking strands, reduces breakage, and encourages a healthier hair growth cycle over time. Easy to apply daily, it absorbs quickly without leaving residue, making it a fuss-free addition to your routine for stronger, denser, and healthier-looking hair.
The Ordinary Multi-Peptide Treatment for Hair Density retails for S$42 from Shopee and Sephora.
Kérastase Genesis Anti-Hair Fall Scalp Serum
This hair growth serum helps to strengthen hair and reduce hair fall with a powerful mix of Aminexil, Edelweiss native cells, and ginger root.
It reinforces hair follicles, creating a healthy scalp environment for future growth. Day by day, it soothes and protects the scalp while keeping hair resilient and strong. Its jelly-like texture makes application easy without dripping.
Ideal for fine or oily hair, it gently removes sebum and impurities, leaving strands lightweight, hydrated, and looking healthier and more beautiful from root to tip.
Kérastase Genesis Anti-Hair Fall Scalp Serum retails for S$93 (90ml) from Sephora.
Briogeo Destined For Density™ Megastrength+ Caffeine + Biotin Peptide Density Serum
This concentrated leave-on daily serum is clinically shown to boost hair density by up to three times. It works by improving nutrient-rich microcirculation to the scalp, helping hair look thicker, fuller, and healthier.
The Density Boosting Complex, packed with copper peptides, zinc, and caffeine, strengthens strands from the root while the lightweight, fast-absorbing formula leaves no greasy residue.
Briogeo™ Nova Complex further stimulates the scalp and reinforces hair, making it an ideal treatment for fine or thinning hair that needs a noticeable boost in density and strength.
Briogeo Destined For Density™ Megastrength+ Caffeine + Biotin Peptide Density Serum retails for S$96 (S$45ml) from Sephora.
Minimalist Hair Density Serum
Looking for a serious boost in hair density? Minimalist Hair Density Serum packs a powerful 18% blend of five proven ingredients to help reduce hair fall and encourage new growth.
Infused with Saw Palmetto and Sanguisorba Officinalis root extract, it nourishes the scalp and strengthens follicles. Safe for both men and women, this serum starts showing results as early as eight weeks, with new hair visible around week twelve.
Lightweight and effective, it’s a fuss-free way to support fuller, thicker, healthier-looking hair.
Minimalist Hair Density Serum retails for S$20.99 from Shopee.
Foreo Luna™ Dual-Peptide Scalp Serum
The peptides in this hair growth serum do more than just prevent thinning—they strengthen hair shafts, reduce breakage, and boost overall hair texture.
Blended with cica and portulaca extract, the serum nourishes and soothes the scalp while supporting fuller, healthier-looking hair. The lightweight formula sinks into your scalp effortlessly, giving it the nutrients it needs without feeling heavy.
Foreo Luna™ Dual-Peptide Scalp Serum retails for S$79 (60ml) from Sephora.
L’occitane Anti-Hair Loss Treatment
Perfect for thinning hair and hair loss concerns, L’Occitane’s Anti-Hair Loss Serum works with the hair growth cycle to reduce hair fall and support fuller-looking hair.
Clinically proven to add up to 17,000 extra hairs, it strengthens strands and improves volume over time. With regular use, hair looks thicker, denser, and more resilient. Key ingredients like rosemary essential oil stimulate the scalp, while watercress extract helps boost growth and thickness.
L’occitane Anti-Hair Loss Treatment retails for S$62 from L’occitane’s official website.
Aveda Invati Ultra Advanced™ Revitalizing Scalp Serum
The Aveda Invati Ultra Advanced Revitalizing Scalp Serum is designed to strengthen hair follicles, reduce breakage, and support fuller-looking hair.
Powered by a plant-based blend of eclipta, alpinia, and ginger, it nourishes the scalp while protecting strands from everyday stressors. With 98% naturally derived ingredients, this vegan-friendly formula is perfect for thinning hair, boosting vitality and resilience from root to tip.
It helps maintain healthy, stronger-looking hair while promoting a revitalised scalp and encouraging a natural, fuller hair appearance over time.
Invati Ultra Advanced™ Revitalizing Scalp Serum retails for S$143 (150ml) from Sephora.
Do Hair-Growth Serums Work?
Source: Depositphotos
Hair growth serums can work, but results depend on several factors including:
- Hair type
- Age
- Scalp health
- Genetic conditions like Androgenetic alopecia (common hereditary thinning or male/female pattern baldness) or Alopecia areata (patchy hair loss caused by the immune system)
Most serums target the scalp, nourishing follicles and preventing breakage rather than magically producing new hair overnight. That said, not all serums are equally effective, so choosing a product backed by research or dermatologist recommendations is important.
However, regular use combined with a healthy lifestyle can give the best outcome.
How Long Does it Take to See Growth?
Source: Depositphotos
Seeing results from a hair growth serum takes patience. On average, most users notice improvements in thickness, strength, and reduced shedding after three to six months of consistent use.
Some may see initial scalp improvements, like reduced dryness or itchiness, within a few weeks. Hair grows roughly one centimetre per month, so visible length changes take time.
However, results can be different for everyone, and sometimes it takes more than just the serum to see real change. Daily application is essential, but combining it with a balanced diet, gentle hair care, and less heat styling can really help speed up noticeable results.
Remember, serums support hair health rather than creating instant growth. The key is patience and consistency, as serums are a long-term investment in hair health, not a quick fix.
Key Ingredients Your Hair Serum Should Have
Not all hair growth serums are made equal, so knowing what to look for helps. Firstly, you’ll need to look for products that are clinically tested and specifically formulated for hair thinning or slow growth.
Next, pay attention to its ingredients, as certain ingredients play a huge role in boosting hair growth, some of which include:
- Caffeine: Improves scalp circulation
- Niacinamide: Boosts scalp health and shine
- Biotin: Strengthens hair and reduces breakage
- Peptides: Stimulate follicles for healthier growth
- Rosemary: Known to strengthen strands and reduce hair thinning over time
- Ginseng: Helps improve blood flow to the scalp and nourishes hair roots naturally
- Green tea: Packed with antioxidants that protect follicles and may promote growth
Some serums also include hyaluronic acid to hydrate the scalp or panthenol for softer strands, which helps keep hair looking healthy and manageable. At the same time, it is best to avoid heavy silicones or alcohol, as these can dry out hair and reduce the serum’s effectiveness.
Choosing a serum with the right combination of active ingredients ensures it not only nourishes your scalp but also supports stronger, fuller growth over time.
