How to choose the best hair serum for every hair type: Expert tips
Hair serums are leave-on treatments that help solve specific hair issues, including frizz, dullness, breakage, or hair fall. Unlike oils that deeply nourish, serums are lighter and work on the outer layers of the hair shaft or the scalp, depending on the formula. 'Hair serum is a fluid product, which is left to absorb into the scalp or strands, depending on the requirement. It works differently based on the hair and scalp condition,' Alsha Shaikh, cosmetologist and founder at Luna clinic, tells HT Lifestyle.
Using a random serum can sometimes do more harm than good. If your hair is already oily, a thick, silicone-heavy serum might weigh it down even more. If your hair is dry or coloured, a lightweight one may not give the nourishment you need. 'We need the right hair serum to protect hair from environmental pollutants, frizz, and damage. It also differs person to person based on hair type,' says Alsha Shaikh.
1. Fights frizz: Hair serums coat the hair shaft, smoothing rough cuticles and reducing frizz caused by humidity or dryness.
2. Adds instant shine: The best hair serum for women and men creates a light-reflective layer on your strands to make them look glossy and healthy.
3. Protects from environmental stressors: Many serums form a protective barrier that shields hair from heat styling tools, UV rays, and environmental pollutants, preventing long-term damage.
5. Boosts growth: The best hair growth serum with actives like Redensyl or Procapil strengthens roots, reduces hair fall, and supports healthier hair growth. A topical human platelet extract hair serum with renewosome technology improves hair density and volume, as per a study published in the International Open Access Journal of the American Society of Plastic Surgeons.
The expert shares a few tips for choosing the best hair serum for your hair type:
Your hair texture, oil levels, and overall condition define what kind of serum you need. "Oily hair needs a water-based, non-greasy serum. Frizzy hair benefits from something more moisturising. The right serum makes a huge difference in hair growth and texture,' shares the expert. Straight hair usually gets weighed down easily, while curly hair tends to be dry and needs extra hydration. Coloured or chemically treated hair often requires reparative ingredients. Fine hair needs lighter textures; thick or coarse hair can handle rich formulations. So, before adding that shiny bottle to your cart, figure out what your hair actually is to prevent many bad hair days.
Here are the top ingredients experts recommend:
● Argan oil: Often called 'liquid gold,' it is rich in antioxidants and fatty acids that nourish dry, brittle hair. It smooths frizz, adds shine, and helps repair damage from heat and colouring. It also protects your hair against oxidative damage, according to the Journal of Cosmetic Dermatology.
● Dimethicone: It is a lightweight silicone that coats the hair shaft to prevent moisture loss. This ingredient helps with detangling, smooths frizz, and gives that glossy, polished finish.
● Glycerine: The best hair serum with this humectant helps draw moisture from the air into your hair strands. It can help reduce dandruff and boost hydration, as per a study published in the SKINmed Journal.
● Redensyl: It is a plant-based compound that stimulates hair follicles to promote new growth. This ingredient can strengthen hair and combat hair loss by targeting hair stem cells and the dermal papilla, as per a study published in Cureus.
● Procapil: Another growth-focused ingredient that strengthens hair at the root, improves blood circulation in the scalp, and helps combat thinning.
● Lightweight silicones: Unlike heavy silicones, these don't weigh hair down and are better for thin or straight hair. They create a smooth layer without buildup.
● Natural butters (like shea or mango): The best hair serum with these ingredients is good for deep nourishment and protection.
Not all serums are hair-friendly; some do more long-term damage than good. According to the hair expert, 'Harsh chemicals like phthalates, parabens, heavy silicones, colorants, and artificial fragrances can cause scalp irritation and further damage.' These ingredients can clog hair follicles, trigger allergic reactions, or lead to a build-up that weighs hair down. Heavy silicones, in particular, may give an instant smooth finish but create residue that blocks moisture over time. Also, avoid strong artificial fragrances if you have a sensitive scalp.
Most serums on the market are leave-in, meaning they stay on your strands or scalp for better absorption and longer-lasting effects. 'Serums are usually for leave-on purposes to increase absorption,' says Alsha. However, some scalp-specific issues, like seborrheic dermatitis or a sensitive scalp, may require wash-off formulations with ingredients like ketoconazole or salicylic acid.
When choosing a texture, think about your lifestyle: a lightweight serum suits daily use and fine hair, while a rich serum with oils or butters suits thick, dry, or curly hair that needs moisture retention. Always perform a patch test if you are new to scalp serums, especially medicated ones. And never layer too many products, serums work best when they are not competing with others.
While the best hair serum is available at every price point, not all are created equal. 'Serums can come at any price, but what matters is the potency and clinical credibility of the ingredients,' explains Alsha. High-end salon serums often use more concentrated actives, fewer fillers, and are clinically tested for results.
Budget-friendly options may still be effective, but often rely on basic silicones for a temporary finish. That said, some mid-range products balance value and quality very well, especially those with proven ingredients like redensyl or argan oil. Look beyond price tags and read the label. If a serum lists its key actives upfront and doesn't hide behind heavy fragrance or marketing fluff, it's likely worth trying.
A good serum can only work if you apply it correctly. And no, it's not just 'rub it and go.' According to Alsha, the application depends entirely on your goal.
● For hair growth, apply to dry scalp.
● For damaged hair, it can be applied to wet or dry hair.
● Curly hair benefits most when used on wet hair to define curls.
● Always start with just a few drops, warm it between your palms, and focus on mid-lengths to ends unless it's a scalp serum.
● Avoid applying too close to the roots, unless directed, and never overload fine hair.
● For scalp serums, part your hair and gently massage the serum in for maximum absorption and circulation boost.
Hair serum isn't just a finishing product; it is a treatment, a protectant, and sometimes even a growth booster. But it all depends on choosing the right one. As Alsha Shaikh advises, pay attention to your hair type, concerns, and ingredient list. So next time, while picking one, don't just go for the hype. Instead, go for the formula that gets your hair.
Note to readers: This article is for informational purposes only and not a substitute for professional medical advice. Always seek the advice of your doctor with any questions about a medical condition.
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